18 files changed, 900 insertions, 240 deletions

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index e66b0bec..fd5465a8 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -51,6 +51,11 @@ jobs:
         with:
           run: make -C firmware TARGET=local
 
+      - name: Run local tests
+        uses: ./.github/actions/docker
+        with:
+          run: make -C firmware TARGET=local APP_TEST=1 run
+
       - name: Build F2 firmware in docker
         uses: ./.github/actions/docker
         with:
diff --git a/applications/applications.mk b/applications/applications.mk
index e088b41c..d199e638 100644
--- a/applications/applications.mk
+++ b/applications/applications.mk
@@ -15,6 +15,7 @@ CFLAGS		+= -DAPP_TEST
 C_SOURCES	+= $(APP_DIR)/tests/furiac_test.c
 C_SOURCES	+= $(APP_DIR)/tests/furi_record_test.c
 C_SOURCES	+= $(APP_DIR)/tests/test_index.c
+C_SOURCES	+= $(APP_DIR)/tests/minunit_test.c
 endif
 
 APP_EXAMPLE_BLINK ?= 0
diff --git a/applications/tests/furi_record_test.c b/applications/tests/furi_record_test.c
index f59d5c62..b8d0b66f 100644
--- a/applications/tests/furi_record_test.c
+++ b/applications/tests/furi_record_test.c
@@ -22,10 +22,10 @@ void pipe_record_cb(const void* value, size_t size, void* ctx) {
     pipe_record_value = *((uint8_t*)value);
 }
 
-bool test_furi_pipe_record(FuriRecordSubscriber* log) {
+bool test_furi_pipe_record() {
     // 1. create pipe record
     if(!furi_create("test/pipe", NULL, 0)) {
-        fuprintf(log, "cannot create record\n");
+        printf("cannot create record\n");
         return false;
     }
 
@@ -33,27 +33,27 @@ bool test_furi_pipe_record(FuriRecordSubscriber* log) {
     FuriRecordSubscriber* pipe_record =
         furi_open("test/pipe", false, false, pipe_record_cb, NULL, NULL);
     if(pipe_record == NULL) {
-        fuprintf(log, "cannot open record\n");
+        printf("cannot open record\n");
         return false;
     }
 
     const uint8_t WRITE_VALUE = 1;
     // 3. write data
     if(!furi_write(pipe_record, &WRITE_VALUE, sizeof(uint8_t))) {
-        fuprintf(log, "cannot write to record\n");
+        printf("cannot write to record\n");
         return false;
     }
 
     // 4. check that subscriber get data
     if(pipe_record_value != WRITE_VALUE) {
-        fuprintf(log, "wrong value (get %d, write %d)\n", pipe_record_value, WRITE_VALUE);
+        printf("wrong value (get %d, write %d)\n", pipe_record_value, WRITE_VALUE);
         return false;
     }
 
     // 5. try to read, get error
     uint8_t read_value = 0;
     if(furi_read(pipe_record, &read_value, sizeof(uint8_t))) {
-        fuprintf(log, "reading from pipe record not allowed\n");
+        printf("reading from pipe record not allowed\n");
         return false;
     }
 
@@ -62,7 +62,7 @@ bool test_furi_pipe_record(FuriRecordSubscriber* log) {
 
     // 7. try to write, get error
     if(furi_write(pipe_record, &WRITE_VALUE, sizeof(uint8_t))) {
-        fuprintf(log, "writing to closed record not allowed\n");
+        printf("writing to closed record not allowed\n");
         return false;
     }
 
@@ -87,11 +87,11 @@ void holding_record_cb(const void* value, size_t size, void* ctx) {
     holding_record_value = *((uint8_t*)value);
 }
 
-bool test_furi_holding_data(FuriRecordSubscriber* log) {
+bool test_furi_holding_data() {
     // 1. Create holding record
     uint8_t holder = 0;
     if(!furi_create("test/holding", (void*)&holder, sizeof(holder))) {
-        fuprintf(log, "cannot create record\n");
+        printf("cannot create record\n");
         return false;
     }
 
@@ -99,43 +99,43 @@ bool test_furi_holding_data(FuriRecordSubscriber* log) {
     FuriRecordSubscriber* holding_record =
         furi_open("test/holding", false, false, holding_record_cb, NULL, NULL);
     if(holding_record == NULL) {
-        fuprintf(log, "cannot open record\n");
+        printf("cannot open record\n");
         return false;
     }
 
     const uint8_t WRITE_VALUE = 1;
     // 3. write data
     if(!furi_write(holding_record, &WRITE_VALUE, sizeof(uint8_t))) {
-        fuprintf(log, "cannot write to record\n");
+        printf("cannot write to record\n");
         return false;
     }
 
     // 4. check that subscriber get data
     if(holding_record_value != WRITE_VALUE) {
-        fuprintf(log, "wrong sub value (get %d, write %d)\n", holding_record_value, WRITE_VALUE);
+        printf("wrong sub value (get %d, write %d)\n", holding_record_value, WRITE_VALUE);
         return false;
     }
 
     // 5. Read and check data
     uint8_t read_value = 0;
     if(!furi_read(holding_record, &read_value, sizeof(uint8_t))) {
-        fuprintf(log, "cannot read from record\n");
+        printf("cannot read from record\n");
         return false;
     }
 
     if(read_value != WRITE_VALUE) {
-        fuprintf(log, "wrong read value (get %d, write %d)\n", read_value, WRITE_VALUE);
+        printf("wrong read value (get %d, write %d)\n", read_value, WRITE_VALUE);
         return false;
     }
 
     // 6. Try to write/read wrong size of data
     if(furi_write(holding_record, &WRITE_VALUE, 100)) {
-        fuprintf(log, "overflowed write not allowed\n");
+        printf("overflowed write not allowed\n");
         return false;
     }
 
     if(furi_read(holding_record, &read_value, 100)) {
-        fuprintf(log, "overflowed read not allowed\n");
+        printf("overflowed read not allowed\n");
         return false;
     }
 
@@ -159,12 +159,10 @@ typedef struct {
 } ConcurrentValue;
 
 void furi_concurent_app(void* p) {
-    FuriRecordSubscriber* log = (FuriRecordSubscriber*)p;
-
     FuriRecordSubscriber* holding_record =
         furi_open("test/concurrent", false, false, NULL, NULL, NULL);
     if(holding_record == NULL) {
-        fuprintf(log, "cannot open record\n");
+        printf("cannot open record\n");
         furiac_exit(NULL);
     }
 
@@ -172,7 +170,7 @@ void furi_concurent_app(void* p) {
         ConcurrentValue* value = (ConcurrentValue*)furi_take(holding_record);
 
         if(value == NULL) {
-            fuprintf(log, "cannot take record\n");
+            printf("cannot take record\n");
             furi_give(holding_record);
             furiac_exit(NULL);
         }
@@ -190,11 +188,11 @@ void furi_concurent_app(void* p) {
     furiac_exit(NULL);
 }
 
-bool test_furi_concurrent_access(FuriRecordSubscriber* log) {
+bool test_furi_concurrent_access() {
     // 1. Create holding record
     ConcurrentValue holder = {.a = 0, .b = 0};
     if(!furi_create("test/concurrent", (void*)&holder, sizeof(ConcurrentValue))) {
-        fuprintf(log, "cannot create record\n");
+        printf("cannot create record\n");
         return false;
     }
 
@@ -202,19 +200,19 @@ bool test_furi_concurrent_access(FuriRecordSubscriber* log) {
     FuriRecordSubscriber* holding_record =
         furi_open("test/concurrent", false, false, NULL, NULL, NULL);
     if(holding_record == NULL) {
-        fuprintf(log, "cannot open record\n");
+        printf("cannot open record\n");
         return false;
     }
 
     // 3. Create second app for interact with it
-    FuriApp* second_app = furiac_start(furi_concurent_app, "furi concurent app", (void*)log);
+    FuriApp* second_app = furiac_start(furi_concurent_app, "furi concurent app", NULL);
 
     // 4. multiply ConcurrentValue::a
     for(size_t i = 0; i < 4; i++) {
         ConcurrentValue* value = (ConcurrentValue*)furi_take(holding_record);
 
         if(value == NULL) {
-            fuprintf(log, "cannot take record\n");
+            printf("cannot take record\n");
             furi_give(holding_record);
             return false;
         }
@@ -232,12 +230,12 @@ bool test_furi_concurrent_access(FuriRecordSubscriber* log) {
     delay(50);
 
     if(second_app->handler != NULL) {
-        fuprintf(log, "second app still alive\n");
+        printf("second app still alive\n");
         return false;
     }
 
     if(holder.a != holder.b) {
-        fuprintf(log, "broken integrity: a=%d, b=%d\n", holder.a, holder.b);
+        printf("broken integrity: a=%d, b=%d\n", holder.a, holder.b);
         return false;
     }
 
@@ -252,7 +250,7 @@ TEST: non-existent data
 
 TODO: implement this test
 */
-bool test_furi_nonexistent_data(FuriRecordSubscriber* log) {
+bool test_furi_nonexistent_data() {
     return true;
 }
 
@@ -310,11 +308,9 @@ void mute_record_state_cb(FlipperRecordState state, void* ctx) {
 }
 
 void furi_mute_parent_app(void* p) {
-    FuriRecordSubscriber* log = (FuriRecordSubscriber*)p;
-
     // 1. Create pipe record
     if(!furi_create("test/mute", NULL, 0)) {
-        fuprintf(log, "cannot create record\n");
+        printf("cannot create record\n");
         furiac_exit(NULL);
     }
 
@@ -322,7 +318,7 @@ void furi_mute_parent_app(void* p) {
     FuriRecordSubscriber* watch_handler =
         furi_open("test/mute", false, false, mute_record_cb, NULL, NULL);
     if(watch_handler == NULL) {
-        fuprintf(log, "cannot open watch handler\n");
+        printf("cannot open watch handler\n");
         furiac_exit(NULL);
     }
 
@@ -332,9 +328,9 @@ void furi_mute_parent_app(void* p) {
     }
 }
 
-bool test_furi_mute_algorithm(FuriRecordSubscriber* log) {
+bool test_furi_mute_algorithm() {
     // 1. Create "parent" application:
-    FuriApp* parent_app = furiac_start(furi_mute_parent_app, "parent app", (void*)log);
+    FuriApp* parent_app = furiac_start(furi_mute_parent_app, "parent app", NULL);
 
     delay(2); // wait creating record
 
@@ -342,7 +338,7 @@ bool test_furi_mute_algorithm(FuriRecordSubscriber* log) {
     FuriRecordSubscriber* handler_a =
         furi_open("test/mute", false, false, NULL, mute_record_state_cb, NULL);
     if(handler_a == NULL) {
-        fuprintf(log, "cannot open handler A\n");
+        printf("cannot open handler A\n");
         return false;
     }
 
@@ -350,25 +346,25 @@ bool test_furi_mute_algorithm(FuriRecordSubscriber* log) {
 
     // Try to write data to A and check subscriber
     if(!furi_write(handler_a, &test_counter, sizeof(uint8_t))) {
-        fuprintf(log, "write to A failed\n");
+        printf("write to A failed\n");
         return false;
     }
 
     if(mute_last_value != test_counter) {
-        fuprintf(log, "value A mismatch: %d vs %d\n", mute_last_value, test_counter);
+        printf("value A mismatch: %d vs %d\n", mute_last_value, test_counter);
         return false;
     }
 
     // 3. Open handler B: solo=true, no_mute=true, NULL subscriber.
     FuriRecordSubscriber* handler_b = furi_open("test/mute", true, true, NULL, NULL, NULL);
     if(handler_b == NULL) {
-        fuprintf(log, "cannot open handler B\n");
+        printf("cannot open handler B\n");
         return false;
     }
 
     // Check A state cb get FlipperRecordStateMute.
     if(mute_last_state != FlipperRecordStateMute) {
-        fuprintf(log, "A state is not FlipperRecordStateMute: %d\n", mute_last_state);
+        printf("A state is not FlipperRecordStateMute: %d\n", mute_last_state);
         return false;
     }
 
@@ -376,12 +372,12 @@ bool test_furi_mute_algorithm(FuriRecordSubscriber* log) {
 
     // Try to write data to A and check that subscriber get no data. (muted)
     if(furi_write(handler_a, &test_counter, sizeof(uint8_t))) {
-        fuprintf(log, "A not muted\n");
+        printf("A not muted\n");
         return false;
     }
 
     if(mute_last_value == test_counter) {
-        fuprintf(log, "value A must be muted\n");
+        printf("value A must be muted\n");
         return false;
     }
 
@@ -389,19 +385,19 @@ bool test_furi_mute_algorithm(FuriRecordSubscriber* log) {
 
     // Try to write data to B and check that subscriber get data.
     if(!furi_write(handler_b, &test_counter, sizeof(uint8_t))) {
-        fuprintf(log, "write to B failed\n");
+        printf("write to B failed\n");
         return false;
     }
 
     if(mute_last_value != test_counter) {
-        fuprintf(log, "value B mismatch: %d vs %d\n", mute_last_value, test_counter);
+        printf("value B mismatch: %d vs %d\n", mute_last_value, test_counter);
         return false;
     }
 
     // 4. Open hadler C: solo=true, no_mute=false, NULL subscriber.
     FuriRecordSubscriber* handler_c = furi_open("test/mute", true, false, NULL, NULL, NULL);
     if(handler_c == NULL) {
-        fuprintf(log, "cannot open handler C\n");
+        printf("cannot open handler C\n");
         return false;
     }
 
@@ -412,7 +408,7 @@ bool test_furi_mute_algorithm(FuriRecordSubscriber* log) {
     // 5. Open handler D: solo=false, no_mute=false, NULL subscriber.
     FuriRecordSubscriber* handler_d = furi_open("test/mute", false, false, NULL, NULL, NULL);
     if(handler_d == NULL) {
-        fuprintf(log, "cannot open handler D\n");
+        printf("cannot open handler D\n");
         return false;
     }
 
@@ -428,7 +424,7 @@ bool test_furi_mute_algorithm(FuriRecordSubscriber* log) {
 
     // 7. Exit "parent application"
     if(!furiac_kill(parent_app)) {
-        fuprintf(log, "kill parent_app fail\n");
+        printf("kill parent_app fail\n");
         return false;
     }
 
diff --git a/applications/tests/furiac_test.c b/applications/tests/furiac_test.c
index f9cdc201..05eaaeae 100644
--- a/applications/tests/furiac_test.c
+++ b/applications/tests/furiac_test.c
@@ -23,26 +23,26 @@ void create_kill_app(void* p) {
     }
 }
 
-bool test_furi_ac_create_kill(FuriRecordSubscriber* log) {
+bool test_furi_ac_create_kill() {
     uint8_t counter = 0;
 
     uint8_t value_a = counter;
 
     FuriApp* widget = furiac_start(create_kill_app, "create_kill_app", (void*)&counter);
     if(widget == NULL) {
-        fuprintf(log, "create widget fail\n");
+        printf("create widget fail\n");
         return false;
     }
 
     delay(10);
 
     if(!furiac_kill(widget)) {
-        fuprintf(log, "kill widget fail\n");
+        printf("kill widget fail\n");
         return false;
     }
 
     if(value_a == counter) {
-        fuprintf(log, "counter unchanged\n");
+        printf("counter unchanged\n");
         return false;
     }
 
@@ -51,7 +51,7 @@ bool test_furi_ac_create_kill(FuriRecordSubscriber* log) {
     delay(10);
 
     if(value_a != counter) {
-        fuprintf(log, "counter changes after kill (counter = %d vs %d)\n", value_a, counter);
+        printf("counter changes after kill (counter = %d vs %d)\n", value_a, counter);
         return false;
     }
 
@@ -111,7 +111,7 @@ void task_b(void* p) {
     furiac_exit(p);
 }
 
-bool test_furi_ac_switch_exit(FuriRecordSubscriber* log) {
+bool test_furi_ac_switch_exit() {
     // init sequence
     TestSwitchSequence seq;
     seq.count = 0;
@@ -124,7 +124,7 @@ bool test_furi_ac_switch_exit(FuriRecordSubscriber* log) {
     seq.sequence[seq.count] = '\0';
 
     if(strcmp(seq.sequence, "ABA/") != 0) {
-        fuprintf(log, "wrong sequence: %s\n", seq.sequence);
+        printf("wrong sequence: %s\n", seq.sequence);
         return false;
     }
 
diff --git a/applications/tests/minunit.h b/applications/tests/minunit.h
new file mode 100644
index 00000000..c90a7454
--- /dev/null
+++ b/applications/tests/minunit.h
@@ -0,0 +1,562 @@
+/*
+ * Copyright (c) 2012 David Siñuela Pastor, siu.4coders@gmail.com
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sublicense, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+ * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+ * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+#ifndef MINUNIT_MINUNIT_H
+#define MINUNIT_MINUNIT_H
+
+#ifdef __cplusplus
+	extern "C" {
+#endif
+
+#if defined(_WIN32)
+#include <Windows.h>
+#if defined(_MSC_VER) && _MSC_VER < 1900
+  #define snprintf _snprintf
+  #define __func__ __FUNCTION__
+#endif
+
+#elif defined(__unix__) || defined(__unix) || defined(unix) || (defined(__APPLE__) && defined(__MACH__))
+
+/* Change POSIX C SOURCE version for pure c99 compilers */
+#if !defined(_POSIX_C_SOURCE) || _POSIX_C_SOURCE < 200112L
+#undef _POSIX_C_SOURCE
+#define _POSIX_C_SOURCE 200112L
+#endif
+
+#include <unistd.h>	/* POSIX flags */
+#include <time.h>	/* clock_gettime(), time() */
+#include <sys/time.h>	/* gethrtime(), gettimeofday() */
+#include <sys/resource.h>
+#include <sys/times.h>
+#include <string.h>
+
+#if defined(__MACH__) && defined(__APPLE__)
+#include <mach/mach.h>
+#include <mach/mach_time.h>
+#endif
+
+#if __GNUC__ >= 5 && !defined(__STDC_VERSION__)
+#define __func__ __extension__ __FUNCTION__
+#endif
+
+#else
+
+// #error "Unable to define timers for an unknown OS."
+
+#endif
+
+#include <stdio.h>
+#include <math.h>
+
+/*  Maximum length of last message */
+#define MINUNIT_MESSAGE_LEN 1024
+/*  Accuracy with which floats are compared */
+#define MINUNIT_EPSILON 1E-12
+
+#include "minunit_vars_ex.h"
+
+/*  Test setup and teardown function pointers */
+static void (*minunit_setup)(void) = NULL;
+static void (*minunit_teardown)(void) = NULL;
+
+/*  Definitions */
+#define MU_TEST(method_name) static void method_name(void)
+#define MU_TEST_SUITE(suite_name) static void suite_name(void)
+
+#define MU__SAFE_BLOCK(block) do {\
+	block\
+} while(0)
+
+/*  Run test suite and unset setup and teardown functions */
+#define MU_RUN_SUITE(suite_name) MU__SAFE_BLOCK(\
+	suite_name();\
+	minunit_setup = NULL;\
+	minunit_teardown = NULL;\
+)
+
+/*  Configure setup and teardown functions */
+#define MU_SUITE_CONFIGURE(setup_fun, teardown_fun) MU__SAFE_BLOCK(\
+	minunit_setup = setup_fun;\
+	minunit_teardown = teardown_fun;\
+)
+
+/*  Test runner */
+#define MU_RUN_TEST(test) MU__SAFE_BLOCK(\
+	if (minunit_real_timer==0 && minunit_proc_timer==0) {\
+		minunit_real_timer = mu_timer_real();\
+		minunit_proc_timer = mu_timer_cpu();\
+	}\
+	if (minunit_setup) (*minunit_setup)();\
+	minunit_status = 0;\
+	test();\
+	minunit_run++;\
+	if (minunit_status) {\
+		minunit_fail++;\
+		printf("F");\
+		printf("\n%s\n", minunit_last_message);\
+	}\
+	fflush(stdout);\
+	if (minunit_teardown) (*minunit_teardown)();\
+)
+
+/*  Report */
+#define MU_REPORT() MU__SAFE_BLOCK(\
+	double minunit_end_real_timer;\
+	double minunit_end_proc_timer;\
+	printf("\n\n%d tests, %d assertions, %d failures\n", minunit_run, minunit_assert, minunit_fail);\
+	minunit_end_real_timer = mu_timer_real();\
+	minunit_end_proc_timer = mu_timer_cpu();\
+	printf("\nFinished in %.8f seconds (real) %.8f seconds (proc)\n\n",\
+		minunit_end_real_timer - minunit_real_timer,\
+		minunit_end_proc_timer - minunit_proc_timer);\
+)
+#define MU_EXIT_CODE minunit_fail
+
+/*  Assertions */
+#define mu_check(test) MU__SAFE_BLOCK(\
+	minunit_assert++;\
+	if (!(test)) {\
+		snprintf(minunit_last_message, MINUNIT_MESSAGE_LEN, "%s failed:\n\t%s:%d: %s", __func__, __FILE__, __LINE__, #test);\
+		minunit_status = 1;\
+		return;\
+	} else {\
+		printf(".");\
+	}\
+)
+
+#define mu_fail(message) MU__SAFE_BLOCK(\
+	minunit_assert++;\
+	snprintf(minunit_last_message, MINUNIT_MESSAGE_LEN, "%s failed:\n\t%s:%d: %s", __func__, __FILE__, __LINE__, message);\
+	minunit_status = 1;\
+	return;\
+)
+
+#define mu_assert(test, message) MU__SAFE_BLOCK(\
+	minunit_assert++;\
+	if (!(test)) {\
+		snprintf(minunit_last_message, MINUNIT_MESSAGE_LEN, "%s failed:\n\t%s:%d: %s", __func__, __FILE__, __LINE__, message);\
+		minunit_status = 1;\
+		return;\
+	} else {\
+		printf(".");\
+	}\
+)
+
+#define mu_assert_int_eq(expected, result) MU__SAFE_BLOCK(\
+	int minunit_tmp_e;\
+	int minunit_tmp_r;\
+	minunit_assert++;\
+	minunit_tmp_e = (expected);\
+	minunit_tmp_r = (result);\
+	if (minunit_tmp_e != minunit_tmp_r) {\
+		snprintf(minunit_last_message, MINUNIT_MESSAGE_LEN, "%s failed:\n\t%s:%d: %d expected but was %d", __func__, __FILE__, __LINE__, minunit_tmp_e, minunit_tmp_r);\
+		minunit_status = 1;\
+		return;\
+	} else {\
+		printf(".");\
+	}\
+)
+
+#define mu_assert_int_not_eq(expected, result) MU__SAFE_BLOCK(\
+	int minunit_tmp_e;\
+	int minunit_tmp_r;\
+	minunit_assert++;\
+	minunit_tmp_e = (expected);\
+	minunit_tmp_r = (result);\
+	if (minunit_tmp_e == minunit_tmp_r) {\
+		snprintf(minunit_last_message, MINUNIT_MESSAGE_LEN, "%s failed:\n\t%s:%d: expected different results but both were %d", __func__, __FILE__, __LINE__, minunit_tmp_e);\
+		minunit_status = 1;\
+		return;\
+	} else {\
+		printf(".");\
+	}\
+)
+
+#define mu_assert_int_greater_than(val, result) MU__SAFE_BLOCK(\
+	int minunit_tmp_e;\
+	int minunit_tmp_r;\
+	minunit_assert++;\
+	minunit_tmp_e = (val);\
+	minunit_tmp_r = (result);\
+	if (val >= minunit_tmp_r) {\
+		snprintf(minunit_last_message, MINUNIT_MESSAGE_LEN, "%s failed:\n\t%s:%d: %d <= %d", __func__, __FILE__, __LINE__, minunit_tmp_r, minunit_tmp_e);\
+		minunit_status = 1;\
+		return;\
+	} else {\
+		printf(".");\
+	}\
+)
+
+#define mu_assert_int_less_than(val, result) MU__SAFE_BLOCK(\
+	int minunit_tmp_e;\
+	int minunit_tmp_r;\
+	minunit_assert++;\
+	minunit_tmp_e = (val);\
+	minunit_tmp_r = (result);\
+	if (val <= minunit_tmp_r) {\
+		snprintf(minunit_last_message, MINUNIT_MESSAGE_LEN, "%s failed:\n\t%s:%d: %d >= %d", __func__, __FILE__, __LINE__, minunit_tmp_r, minunit_tmp_e);\
+		minunit_status = 1;\
+		return;\
+	} else {\
+		printf(".");\
+	}\
+)
+
+#define mu_assert_int_between(expected_lower, expected_upper, result) MU__SAFE_BLOCK(\
+	int minunit_tmp_e;\
+	int minunit_tmp_m;\
+	int minunit_tmp_r;\
+	minunit_assert++;\
+	minunit_tmp_e = (expected_lower);\
+	minunit_tmp_m = (expected_upper);\
+	minunit_tmp_r = (result);\
+	if (result < minunit_tmp_e || result > minunit_tmp_m) {\
+		snprintf(minunit_last_message, MINUNIT_MESSAGE_LEN, "%s failed:\n\t%s:%d: %d was not between (inclusive) %d and %d", __func__, __FILE__, __LINE__,  minunit_tmp_e, minunit_tmp_r, minunit_tmp_m);\
+		minunit_status = 1;\
+		return;\
+	} else {\
+		printf(".");\
+	}\
+)
+
+#define mu_assert_int_in(expected, array_length, result) MU__SAFE_BLOCK(\
+	int minunit_tmp_r;\
+	minunit_assert++;\
+	minunit_tmp_r = (result);\
+	int t = 0;\
+	int i;\
+	for (i = 0; i < array_length; i++) {\
+		if (expected[i] == minunit_tmp_r)\
+			t = 1;\
+	}\
+	if (t == 0) {\
+		char tmp[500] = {0};\
+		tmp[0] = '[';\
+		for (i = 0; i < array_length; i++) {\
+			sprintf(tmp + strlen(tmp), "%d, ", expected[i]);\
+		}\
+		int len = strlen(tmp);\
+		tmp[len - 2] = ']';\
+		tmp[len - 1] = '\0';\
+		snprintf(minunit_last_message, MINUNIT_MESSAGE_LEN, "%s failed:\n\t%s:%d: expected to be one of %s but was %d", __func__, __FILE__, __LINE__, tmp, minunit_tmp_r);\
+		minunit_status = 1;\
+		return;\
+	} else {\
+		printf(".");\
+	}\
+)
+
+#define mu_assert_double_eq(expected, result) MU__SAFE_BLOCK(\
+	double minunit_tmp_e;\
+	double minunit_tmp_r;\
+	minunit_assert++;\
+	minunit_tmp_e = (expected);\
+	minunit_tmp_r = (result);\
+	if (fabs(minunit_tmp_e-minunit_tmp_r) > MINUNIT_EPSILON) {\
+		int minunit_significant_figures = 1 - log10(MINUNIT_EPSILON);\
+		snprintf(minunit_last_message, MINUNIT_MESSAGE_LEN, "%s failed:\n\t%s:%d: %.*g expected but was %.*g", __func__, __FILE__, __LINE__, minunit_significant_figures, minunit_tmp_e, minunit_significant_figures, minunit_tmp_r);\
+		minunit_status = 1;\
+		return;\
+	} else {\
+		printf(".");\
+	}\
+)
+
+#define mu_assert_double_greater_than(val, result) MU__SAFE_BLOCK(\
+	double minunit_tmp_e;\
+	double minunit_tmp_r;\
+	minunit_assert++;\
+	minunit_tmp_e = (val);\
+	minunit_tmp_r = (result);\
+	if (val >= minunit_tmp_r) {\
+		snprintf(minunit_last_message, MINUNIT_MESSAGE_LEN, "%s failed:\n\t%s:%d: %f <= %f", __func__, __FILE__, __LINE__, minunit_tmp_r, minunit_tmp_e);\
+		minunit_status = 1;\
+		return;\
+	} else {\
+		printf(".");\
+	}\
+)
+
+#define mu_assert_double_less_than(val, result) MU__SAFE_BLOCK(\
+	double minunit_tmp_e;\
+	double minunit_tmp_r;\
+	minunit_assert++;\
+	minunit_tmp_e = (val);\
+	minunit_tmp_r = (result);\
+	if (val <= minunit_tmp_r) {\
+		snprintf(minunit_last_message, MINUNIT_MESSAGE_LEN, "%s failed:\n\t%s:%d: %f >= %f", __func__, __FILE__, __LINE__, minunit_tmp_r, minunit_tmp_e);\
+		minunit_status = 1;\
+		return;\
+	} else {\
+		printf(".");\
+	}\
+)
+
+#define mu_assert_double_between(expected_lower, expected_upper, result) MU__SAFE_BLOCK(\
+	double minunit_tmp_e;\
+	double minunit_tmp_m;\
+	double minunit_tmp_r;\
+	minunit_assert++;\
+	minunit_tmp_e = (expected_lower);\
+	minunit_tmp_m = (expected_upper);\
+	minunit_tmp_r = (result);\
+	if (result < minunit_tmp_e || result > minunit_tmp_m) {\
+		snprintf(minunit_last_message, MINUNIT_MESSAGE_LEN, "%s failed:\n\t%s:%d: %f was not between (inclusive) %f and %f", __func__, __FILE__, __LINE__,  minunit_tmp_e, minunit_tmp_r, minunit_tmp_m);\
+		minunit_status = 1;\
+		return;\
+	} else {\
+		printf(".");\
+	}\
+)
+
+#define mu_assert_string_eq(expected, result) MU__SAFE_BLOCK(\
+	const char* minunit_tmp_e = expected;\
+	const char* minunit_tmp_r = result;\
+	minunit_assert++;\
+	if (!minunit_tmp_e) {\
+		minunit_tmp_e = "<null pointer>";\
+	}\
+	if (!minunit_tmp_r) {\
+		minunit_tmp_r = "<null pointer>";\
+	}\
+	if(strcmp(minunit_tmp_e, minunit_tmp_r)) {\
+		snprintf(minunit_last_message, MINUNIT_MESSAGE_LEN, "%s failed:\n\t%s:%d: '%s' expected but was '%s'", __func__, __FILE__, __LINE__, minunit_tmp_e, minunit_tmp_r);\
+		minunit_status = 1;\
+		return;\
+	} else {\
+		printf(".");\
+	}\
+)
+
+#define mu_assert_null(result) MU__SAFE_BLOCK(\
+	minunit_assert++;\
+	if (result == NULL) {\
+		printf(".");\
+	} else {\
+		snprintf(minunit_last_message, MINUNIT_MESSAGE_LEN, "%s failed:\n\t%s:%d: Expected result was not NULL", __func__, __FILE__, __LINE__);\
+		minunit_status = 1;\
+		return;\
+	}\
+)
+
+#define mu_assert_not_null(result) MU__SAFE_BLOCK(\
+	minunit_assert++;\
+	if (result != NULL) {\
+		printf(".");\
+	} else {\
+		snprintf(minunit_last_message, MINUNIT_MESSAGE_LEN, "%s failed:\n\t%s:%d: Expected result was not NULL", __func__, __FILE__, __LINE__);\
+		minunit_status = 1;\
+		return;\
+	}\
+)
+
+#define mu_assert_pointers_eq(pointer1, pointer2) MU__SAFE_BLOCK(\
+	minunit_assert++;\
+	if (pointer1 == pointer2) {\
+		printf(".");\
+	} else {\
+		snprintf(minunit_last_message, MINUNIT_MESSAGE_LEN, "%s failed:\n\t%s:%d: Expected the pointers to point to the same memory location", __func__, __FILE__, __LINE__);\
+		minunit_status = 1;\
+		return;\
+	}\
+)
+
+#define mu_assert_pointers_not_eq(pointer1, pointer2) MU__SAFE_BLOCK(\
+	minunit_assert++;\
+	if (pointer1 != pointer2) {\
+		printf(".");\
+	} else {\
+		snprintf(minunit_last_message, MINUNIT_MESSAGE_LEN, "%s failed:\n\t%s:%d: Expected the pointers to point to the same memory location", __func__, __FILE__, __LINE__);\
+		minunit_status = 1;\
+		return;\
+	}\
+)
+
+/*
+ * The following two functions were written by David Robert Nadeau
+ * from http://NadeauSoftware.com/ and distributed under the
+ * Creative Commons Attribution 3.0 Unported License
+ */
+
+/**
+ * Returns the real time, in seconds, or -1.0 if an error occurred.
+ *
+ * Time is measured since an arbitrary and OS-dependent start time.
+ * The returned real time is only useful for computing an elapsed time
+ * between two calls to this function.
+ */
+static double mu_timer_real(void)
+{
+#if defined(_WIN32)
+	/* Windows 2000 and later. ---------------------------------- */
+	LARGE_INTEGER Time;
+	LARGE_INTEGER Frequency;
+
+	QueryPerformanceFrequency(&Frequency);
+	QueryPerformanceCounter(&Time);
+
+	Time.QuadPart *= 1000000;
+	Time.QuadPart /= Frequency.QuadPart;
+
+	return (double)Time.QuadPart / 1000000.0;
+
+#elif (defined(__hpux) || defined(hpux)) || ((defined(__sun__) || defined(__sun) || defined(sun)) && (defined(__SVR4) || defined(__svr4__)))
+	/* HP-UX, Solaris. ------------------------------------------ */
+	return (double)gethrtime( ) / 1000000000.0;
+
+#elif defined(__MACH__) && defined(__APPLE__)
+	/* OSX. ----------------------------------------------------- */
+	static double timeConvert = 0.0;
+	if ( timeConvert == 0.0 )
+	{
+		mach_timebase_info_data_t timeBase;
+		(void)mach_timebase_info( &timeBase );
+		timeConvert = (double)timeBase.numer /
+			(double)timeBase.denom /
+			1000000000.0;
+	}
+	return (double)mach_absolute_time( ) * timeConvert;
+
+#elif defined(_POSIX_VERSION)
+	/* POSIX. --------------------------------------------------- */
+	struct timeval tm;
+#if defined(_POSIX_TIMERS) && (_POSIX_TIMERS > 0)
+	{
+		struct timespec ts;
+#if defined(CLOCK_MONOTONIC_PRECISE)
+		/* BSD. --------------------------------------------- */
+		const clockid_t id = CLOCK_MONOTONIC_PRECISE;
+#elif defined(CLOCK_MONOTONIC_RAW)
+		/* Linux. ------------------------------------------- */
+		const clockid_t id = CLOCK_MONOTONIC_RAW;
+#elif defined(CLOCK_HIGHRES)
+		/* Solaris. ----------------------------------------- */
+		const clockid_t id = CLOCK_HIGHRES;
+#elif defined(CLOCK_MONOTONIC)
+		/* AIX, BSD, Linux, POSIX, Solaris. ----------------- */
+		const clockid_t id = CLOCK_MONOTONIC;
+#elif defined(CLOCK_REALTIME)
+		/* AIX, BSD, HP-UX, Linux, POSIX. ------------------- */
+		const clockid_t id = CLOCK_REALTIME;
+#else
+		const clockid_t id = (clockid_t)-1;	/* Unknown. */
+#endif /* CLOCK_* */
+		if ( id != (clockid_t)-1 && clock_gettime( id, &ts ) != -1 )
+			return (double)ts.tv_sec +
+				(double)ts.tv_nsec / 1000000000.0;
+		/* Fall thru. */
+	}
+#endif /* _POSIX_TIMERS */
+
+	/* AIX, BSD, Cygwin, HP-UX, Linux, OSX, POSIX, Solaris. ----- */
+	gettimeofday( &tm, NULL );
+	return (double)tm.tv_sec + (double)tm.tv_usec / 1000000.0;
+#else
+	return -1.0;		/* Failed. */
+#endif
+}
+
+/**
+ * Returns the amount of CPU time used by the current process,
+ * in seconds, or -1.0 if an error occurred.
+ */
+static double mu_timer_cpu(void)
+{
+#if defined(_WIN32)
+	/* Windows -------------------------------------------------- */
+	FILETIME createTime;
+	FILETIME exitTime;
+	FILETIME kernelTime;
+	FILETIME userTime;
+
+	/* This approach has a resolution of 1/64 second. Unfortunately, Windows' API does not offer better */
+	if ( GetProcessTimes( GetCurrentProcess( ),
+		&createTime, &exitTime, &kernelTime, &userTime ) != 0 )
+	{
+		ULARGE_INTEGER userSystemTime;
+		memcpy(&userSystemTime, &userTime, sizeof(ULARGE_INTEGER));
+		return (double)userSystemTime.QuadPart / 10000000.0;
+	}
+
+#elif defined(__unix__) || defined(__unix) || defined(unix) || (defined(__APPLE__) && defined(__MACH__))
+	/* AIX, BSD, Cygwin, HP-UX, Linux, OSX, and Solaris --------- */
+
+#if defined(_POSIX_TIMERS) && (_POSIX_TIMERS > 0)
+	/* Prefer high-res POSIX timers, when available. */
+	{
+		clockid_t id;
+		struct timespec ts;
+#if _POSIX_CPUTIME > 0
+		/* Clock ids vary by OS.  Query the id, if possible. */
+		if ( clock_getcpuclockid( 0, &id ) == -1 )
+#endif
+#if defined(CLOCK_PROCESS_CPUTIME_ID)
+			/* Use known clock id for AIX, Linux, or Solaris. */
+			id = CLOCK_PROCESS_CPUTIME_ID;
+#elif defined(CLOCK_VIRTUAL)
+			/* Use known clock id for BSD or HP-UX. */
+			id = CLOCK_VIRTUAL;
+#else
+			id = (clockid_t)-1;
+#endif
+		if ( id != (clockid_t)-1 && clock_gettime( id, &ts ) != -1 )
+			return (double)ts.tv_sec +
+				(double)ts.tv_nsec / 1000000000.0;
+	}
+#endif
+
+#if defined(RUSAGE_SELF)
+	{
+		struct rusage rusage;
+		if ( getrusage( RUSAGE_SELF, &rusage ) != -1 )
+			return (double)rusage.ru_utime.tv_sec +
+				(double)rusage.ru_utime.tv_usec / 1000000.0;
+	}
+#endif
+
+#if defined(_SC_CLK_TCK)
+	{
+		const double ticks = (double)sysconf( _SC_CLK_TCK );
+		struct tms tms;
+		if ( times( &tms ) != (clock_t)-1 )
+			return (double)tms.tms_utime / ticks;
+	}
+#endif
+
+#if defined(CLOCKS_PER_SEC)
+	{
+		clock_t cl = clock( );
+		if ( cl != (clock_t)-1 )
+			return (double)cl / (double)CLOCKS_PER_SEC;
+	}
+#endif
+
+#endif
+
+	return -1;		/* Failed. */
+}
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* MINUNIT_MINUNIT_H */
\ No newline at end of file
diff --git a/applications/tests/minunit_test.c b/applications/tests/minunit_test.c
new file mode 100644
index 00000000..62e0da37
--- /dev/null
+++ b/applications/tests/minunit_test.c
@@ -0,0 +1,77 @@
+#include <stdio.h>
+#include "flipper.h"
+#include "log.h"
+#include "minunit_vars.h"
+#include "minunit.h"
+
+bool test_furi_ac_create_kill();
+bool test_furi_ac_switch_exit();
+bool test_furi_pipe_record();
+bool test_furi_holding_data();
+bool test_furi_concurrent_access();
+bool test_furi_nonexistent_data();
+bool test_furi_mute_algorithm();
+
+static int foo = 0;
+
+void test_setup(void) {
+    foo = 7;
+}
+
+void test_teardown(void) {
+    /* Nothing */
+}
+
+MU_TEST(test_check) {
+    mu_check(foo != 6);
+}
+
+MU_TEST(mu_test_furi_ac_create_kill) {
+    mu_assert_int_eq(test_furi_ac_create_kill(), true);
+}
+
+MU_TEST(mu_test_furi_ac_switch_exit) {
+    mu_assert_int_eq(test_furi_ac_switch_exit(), true);
+}
+
+MU_TEST(mu_test_furi_pipe_record) {
+    mu_assert_int_eq(test_furi_pipe_record(), true);
+}
+
+MU_TEST(mu_test_furi_holding_data) {
+    mu_assert_int_eq(test_furi_holding_data(), true);
+}
+
+MU_TEST(mu_test_furi_concurrent_access) {
+    mu_assert_int_eq(test_furi_concurrent_access(), true);
+}
+
+MU_TEST(mu_test_furi_nonexistent_data) {
+    mu_assert_int_eq(test_furi_nonexistent_data(), true);
+}
+
+/*
+MU_TEST(mu_test_furi_mute_algorithm) {
+    mu_assert_int_eq(test_furi_mute_algorithm(test_log), true);
+}
+*/
+
+MU_TEST_SUITE(test_suite) {
+    MU_SUITE_CONFIGURE(&test_setup, &test_teardown);
+
+    MU_RUN_TEST(test_check);
+    MU_RUN_TEST(mu_test_furi_ac_create_kill);
+    MU_RUN_TEST(mu_test_furi_ac_switch_exit);
+    MU_RUN_TEST(mu_test_furi_pipe_record);
+    MU_RUN_TEST(mu_test_furi_holding_data);
+    MU_RUN_TEST(mu_test_furi_concurrent_access);
+    MU_RUN_TEST(mu_test_furi_nonexistent_data);
+    // MU_RUN_TEST(mu_test_furi_mute_algorithm);
+}
+
+int run_minunit() {
+    MU_RUN_SUITE(test_suite);
+    MU_REPORT();
+
+    return MU_EXIT_CODE;
+}
\ No newline at end of file
diff --git a/applications/tests/minunit_vars.h b/applications/tests/minunit_vars.h
new file mode 100644
index 00000000..7ef5f825
--- /dev/null
+++ b/applications/tests/minunit_vars.h
@@ -0,0 +1,15 @@
+#pragma once
+#include "minunit.h"
+
+/*  Misc. counters */
+int minunit_run = 0;
+int minunit_assert = 0;
+int minunit_fail = 0;
+int minunit_status = 0;
+
+/*  Timers */
+double minunit_real_timer = 0;
+double minunit_proc_timer = 0;
+
+/*  Last message */
+char minunit_last_message[MINUNIT_MESSAGE_LEN];
\ No newline at end of file
diff --git a/applications/tests/minunit_vars_ex.h b/applications/tests/minunit_vars_ex.h
new file mode 100644
index 00000000..e2743d1c
--- /dev/null
+++ b/applications/tests/minunit_vars_ex.h
@@ -0,0 +1,15 @@
+#pragma once
+#include "minunit.h"
+
+/*  Misc. counters */
+extern int minunit_run;
+extern int minunit_assert;
+extern int minunit_fail;
+extern int minunit_status;
+
+/*  Timers */
+extern double minunit_real_timer;
+extern double minunit_proc_timer;
+
+/*  Last message */
+extern char minunit_last_message[MINUNIT_MESSAGE_LEN];
\ No newline at end of file
diff --git a/applications/tests/test_index.c b/applications/tests/test_index.c
index 9c970a38..c15985ce 100644
--- a/applications/tests/test_index.c
+++ b/applications/tests/test_index.c
@@ -4,70 +4,38 @@
 
 // #include "flipper-core.h" TODO: Rust build disabled
 
-bool test_furi_ac_create_kill(FuriRecordSubscriber* log);
-bool test_furi_ac_switch_exit(FuriRecordSubscriber* log);
-
-bool test_furi_pipe_record(FuriRecordSubscriber* log);
-bool test_furi_holding_data(FuriRecordSubscriber* log);
-bool test_furi_concurrent_access(FuriRecordSubscriber* log);
-bool test_furi_nonexistent_data(FuriRecordSubscriber* log);
-bool test_furi_mute_algorithm(FuriRecordSubscriber* log);
+int run_minunit();
 
 void flipper_test_app(void* p) {
-    FuriRecordSubscriber* log = get_default_log();
+    // create pins
+    GpioPin red = {.pin = LED_RED_Pin, .port = LED_RED_GPIO_Port};
+    GpioPin green = {.pin = LED_GREEN_Pin, .port = LED_GREEN_GPIO_Port};
+    GpioPin blue = {.pin = LED_BLUE_Pin, .port = LED_BLUE_GPIO_Port};
 
-    if(test_furi_ac_create_kill(log)) {
-        fuprintf(log, "[TEST] test_furi_ac_create_kill PASSED\n");
-    } else {
-        fuprintf(log, "[TEST] test_furi_ac_create_kill FAILED\n");
-    }
-
-    if(test_furi_ac_switch_exit(log)) {
-        fuprintf(log, "[TEST] test_furi_ac_switch_exit PASSED\n");
-    } else {
-        fuprintf(log, "[TEST] test_furi_ac_switch_exit FAILED\n");
-    }
+    // configure pins
+    pinMode(red, GpioModeOpenDrain);
+    pinMode(green, GpioModeOpenDrain);
+    pinMode(blue, GpioModeOpenDrain);
 
-    if(test_furi_pipe_record(log)) {
-        fuprintf(log, "[TEST] test_furi_pipe_record PASSED\n");
-    } else {
-        fuprintf(log, "[TEST] test_furi_pipe_record FAILED\n");
-    }
+    digitalWrite(red, HIGH);
+    digitalWrite(green, HIGH);
+    digitalWrite(blue, LOW);
 
-    if(test_furi_holding_data(log)) {
-        fuprintf(log, "[TEST] test_furi_holding_data PASSED\n");
-    } else {
-        fuprintf(log, "[TEST] test_furi_holding_data FAILED\n");
-    }
-
-    if(test_furi_concurrent_access(log)) {
-        fuprintf(log, "[TEST] test_furi_concurrent_access PASSED\n");
-    } else {
-        fuprintf(log, "[TEST] test_furi_concurrent_access FAILED\n");
-    }
-
-    if(test_furi_nonexistent_data(log)) {
-        fuprintf(log, "[TEST] test_furi_nonexistent_data PASSED\n");
-    } else {
-        fuprintf(log, "[TEST] test_furi_nonexistent_data FAILED\n");
-    }
-
-    if(test_furi_mute_algorithm(log)) {
-        fuprintf(log, "[TEST] test_furi_mute_algorithm PASSED\n");
-    } else {
-        fuprintf(log, "[TEST] test_furi_mute_algorithm FAILED\n");
-    }
+    uint32_t exitcode = run_minunit();
 
-    /*
-    TODO: Rust build disabled
-    if(add(1, 2) == 3) {
-        fuprintf(log, "[TEST] Rust add PASSED\n");
+    if(exitcode == 0) {
+        // test passed
+        digitalWrite(red, HIGH);
+        digitalWrite(green, LOW);
+        digitalWrite(blue, HIGH);
     } else {
-        fuprintf(log, "[TEST] Rust add FAILED\n");
+        // test failed
+        digitalWrite(red, LOW);
+        digitalWrite(green, HIGH);
+        digitalWrite(blue, HIGH);
     }
 
-    rust_uart_write();
-    */
+    set_exitcode(exitcode);
 
     furiac_exit(NULL);
 }
\ No newline at end of file
diff --git a/core/app.cpp b/core/app.cpp
index 5b2abe14..e9590ead 100644
--- a/core/app.cpp
+++ b/core/app.cpp
@@ -1,14 +1,20 @@
-#include "flipper.h"
 #include <stdio.h>
 
 extern "C" {
-#include "furi.h"
-#include "log.h"
-#include "startup.h"
-#include "tty_uart.h"
+    #include "flipper.h"
+    #include "furi.h"
+    #include "log.h"
+    #include "startup.h"
+    #include "tty_uart.h"
 }
 
-extern "C" void app() {
+// for testing purpose
+uint32_t exitcode = 0;
+extern "C" void set_exitcode(uint32_t _exitcode) {
+    exitcode = _exitcode;
+}
+
+extern "C" int app() {
     register_tty_uart();
 
     FuriRecordSubscriber* log = get_default_log();
@@ -33,8 +39,9 @@ extern "C" void app() {
             }
         }
         delay(500);
-        // TODO add deferred event queue here
     } while(is_alive);
 
     fuprintf(log, "\n=== Bye from Flipper Zero! ===\n\n");
+
+    return (int)exitcode;
 }
\ No newline at end of file
diff --git a/core/flipper.h b/core/flipper.h
index a4b0e3f5..da78456b 100644
--- a/core/flipper.h
+++ b/core/flipper.h
@@ -29,3 +29,5 @@ extern "C" {
 #define INPUT GpioModeInput
 #define LOW false
 #define HIGH true
+
+void set_exitcode(uint32_t _exitcode);
diff --git a/firmware/targets/local/Inc/main.h b/firmware/targets/local/Inc/main.h
index e169e63d..75870d21 100644
--- a/firmware/targets/local/Inc/main.h
+++ b/firmware/targets/local/Inc/main.h
@@ -10,5 +10,9 @@ HAL_UART_Transmit(UART_HandleTypeDef* handle, uint8_t* bufer, uint16_t size, uin
 
 typedef uint32_t TIM_HandleTypeDef;
 
-#define LED_RED_GPIO_Port 1
-#define LED_RED_Pin 1
\ No newline at end of file
+#define LED_RED_Pin 1
+#define LED_RED_GPIO_Port "Red:"
+#define LED_GREEN_Pin 1
+#define LED_GREEN_GPIO_Port "Green:"
+#define LED_BLUE_Pin 1
+#define LED_BLUE_GPIO_Port "Blue:"
diff --git a/firmware/targets/local/Src/main.c b/firmware/targets/local/Src/main.c
index 0a8a59be..64b2d05b 100644
--- a/firmware/targets/local/Src/main.c
+++ b/firmware/targets/local/Src/main.c
@@ -4,10 +4,8 @@ Flipper devices inc.
 Local fw build entry point.
 */
 
-void app();
+int app();
 
 int main() {
-    app();
-
-    return 0;
+    return app();
 }
\ No newline at end of file
diff --git a/wiki/Testing.md b/wiki/Testing.md
index 46c58ad6..2c5e71f7 100644
--- a/wiki/Testing.md
+++ b/wiki/Testing.md
@@ -1,121 +1,11 @@
-# Bootloader testcase
+# Integration testing
 
-1. `# Clean flash`
-2. `make -C bootloader flash` `# Load bootloader`
-3.  `# reboot device`
-    * Press right
-    * Press left
-    * Wait 0.1 s
-    * Release left
-    * Release right
-4. Wait 0.5 s
-5. `# Expect no FW`
-    * Expect: no uart welcome message
-    * Expect: red led on
-    * Expect: no USB
-6. `# reboot device and go to DFU`
-    * Press left 
-    * Press right
-    * Wait 0.1 s
-    * Release left
-    * Wait 0.5 s 
-    * Release right
-7. Wait 0.5 s
-8. `# Expect DFU`
-    * Expect: blue led on
-    * Expect: USB: DFU
-9. `target_f2/deploy-dfu.sh` `# load FW`
-10. `# reboot device`
-    * Press right
-    * Press left
-    * Wait 0.1 s
-    * Release left
-    * Release right
-11. Wait 0.5 s
-12. `# Expect FW`
-    * Expect: uart welcome message
-    * Expect: USB Flipper CDC
+* **[Bootloader testcase](Bootloader-test)**
+* **[Input testcase](Input-test)**
+* **[General testcase](General-building-test)**
 
-# Input testcase
+# Unit testing
 
-1. `docker-compose exec dev make -C target_f2 example_input_dump`
-2. Flash
-3. For x in ```
-[
-    (Up, "00"),
-    (Down, "01"),
-    (Right, "02"),
-    (Left, "03"),
-    (Ok, "04"),
-    (Back, "05"),
-]
-```
-    * Press ${x[0]}
-    * wait 0.05
-    * Expect: Uart: "event: ${x[1]} pressed"
-    * wait 0.05
-    * Release ${x[0]}
-    * wait 0.05
-    * Expect: Uart: "event: ${x[1]} released"
-    * wait 0.05
-
-TODO: add debouncing check (multiple press and check there is no multiple events)
-
-# General building testcase
-
-Local target:
-
-* `docker-compose exec dev make -C firmware TARGET=local APP_TEST=1 clean`
-* `docker-compose exec dev make -C firmware TARGET=local APP_TEST=1 run`
-* check tests pass/fail
-
-* `docker-compose exec dev make -C firmware TARGET=local APP_EXAMPLE_BLINK=1 run`
-* GPIO on and off
-
-* `docker-compose exec dev make -C firmware TARGET=local APP_EXAMPLE_UART_WRITE=1 run`
-* GPIO on/off and `counter: %` writes
-
-* `docker-compose exec dev make -C firmware TARGET=local APP_EXAMPLE_IPC=1 run`
-* ASCII display draw
-
-* `docker-compose exec dev make -C firmware TARGET=local APP_EXAMPLE_INPUT_DUMP=1 run` not implemented
-
-* `docker-compose exec dev make -C firmware TARGET=local APP_EXAMPLE_QRCODE=1 run`
-* Some writes to display
-
-* `docker-compose exec dev make -C firmware TARGET=local APP_EXAMPLE_DISPLAY=1 run`
-* Some writes to display
-
-* `docker-compose exec dev make -C firmware TARGET=local APP_EXAMPLE_FATFS=1 flash`
-* TODO: FatFs emulation and test not implemented
-
-F2 target:
-
-* `docker-compose exec dev make -C firmware TARGET=f2 APP_TEST=1 clean`
-* `docker-compose exec dev make -C firmware TARGET=f2 APP_TEST=1 flash`
-* check UART for test pass/fail
-
-* `docker-compose exec dev make -C firmware TARGET=f2 APP_EXAMPLE_BLINK=1 flash`
-* Red LED blink (1s period)
-
-* `docker-compose exec dev make -C firmware TARGET=f2 APP_EXAMPLE_UART_WRITE=1 flash`
-* Red LED shortly blinking, `counter: %` writes to UART
-
-* `docker-compose exec dev make -C firmware TARGET=f2 APP_EXAMPLE_IPC=1 flash`
-* ASCII display draw in UART
-
-* `docker-compose exec dev make -C firmware TARGET=f2 APP_EXAMPLE_INPUT_DUMP=1 flash`
-* Press all buttons, `state` and `event` writes to UART
-
-* `docker-compose exec dev make -C firmware TARGET=f2 APP_EXAMPLE_QRCODE=1 flash`
-* QR code show on the screen
-
-* `docker-compose exec dev make -C firmware TARGET=f2 APP_EXAMPLE_DISPLAY=1 flash`
-* `Hello world` show on the screen
-
-* `docker-compose exec dev make -C firmware TARGET=f2 APP_EXAMPLE_FATFS=1 flash`
-* `Init sd card error` on the screen
-* Insert SD-card
-* Reboot
-* Show file list on the screen
-* Scroll by pressing up and down
+1. We use [minunit]() as testing framework
+2. Tests root placed in `applications/tests/minuint_test.c`
+3. There is `Run local tests` job in `CI` pipeline (`.github/workflows/ci.yml`)
diff --git a/wiki/fw/Environment.md b/wiki/fw/Environment.md
index 8744212a..a441e08f 100644
--- a/wiki/fw/Environment.md
+++ b/wiki/fw/Environment.md
@@ -35,7 +35,7 @@ For more HW- and RTOS- specific checks we run real FW in [Renode](https://interr
 
 Eventually we run real FW on remote debug/test bench (#26): flipper board + RPi + some stuff to control and check real hardware.
 
-# Debug/test bench (not implemented)
+# Debug/test bench (in progress)
 
 * 24×7 connected target Flipper device and accessible via Internet. Raspberry PI or some Linux single-board PC can be used as basic high-level control board.
 * Tool can push/click each user buttons by hardware by "control board" (low level). Usage of optocouples/reed-switch relays is fine for that.
@@ -61,3 +61,7 @@ Eventually we run real FW on remote debug/test bench (#26): flipper board + RPi
 2. Run CI tests:
 	* For test automation we can use RobotDemo or simple expect tool/python scripts/etc.
 	* Apply test cases and submit its results.
+
+# Testing
+
+You can read about testing in [Testing](Testing) page.
diff --git a/wiki/testing/Bootloader-test.md b/wiki/testing/Bootloader-test.md
new file mode 100644
index 00000000..855e5de7
--- /dev/null
+++ b/wiki/testing/Bootloader-test.md
@@ -0,0 +1,35 @@
+1. `# Clean flash`
+2. `make -C bootloader flash` `# Load bootloader`
+3.  `# reboot device`
+    * Press right
+    * Press left
+    * Wait 0.1 s
+    * Release left
+    * Release right
+4. Wait 0.5 s
+5. `# Expect no FW`
+    * Expect: no uart welcome message
+    * Expect: red led on
+    * Expect: no USB
+6. `# reboot device and go to DFU`
+    * Press left 
+    * Press right
+    * Wait 0.1 s
+    * Release left
+    * Wait 0.5 s 
+    * Release right
+7. Wait 0.5 s
+8. `# Expect DFU`
+    * Expect: blue led on
+    * Expect: USB: DFU
+9. `target_f2/deploy-dfu.sh` `# load FW`
+10. `# reboot device`
+    * Press right
+    * Press left
+    * Wait 0.1 s
+    * Release left
+    * Release right
+11. Wait 0.5 s
+12. `# Expect FW`
+    * Expect: uart welcome message
+    * Expect: USB Flipper CDC
diff --git a/wiki/testing/General-building-test.md b/wiki/testing/General-building-test.md
new file mode 100644
index 00000000..2dfd913b
--- /dev/null
+++ b/wiki/testing/General-building-test.md
@@ -0,0 +1,59 @@
+Local target:
+
+* `docker-compose exec dev make -C firmware TARGET=local APP_TEST=1 clean`
+* `docker-compose exec dev make -C firmware TARGET=local APP_TEST=1 run`
+* check tests pass/fail (by exitcode == 0)
+
+* `docker-compose exec dev make -C firmware TARGET=local APP_EXAMPLE_BLINK=1 run`
+* GPIO on and off
+
+* `docker-compose exec dev make -C firmware TARGET=local APP_EXAMPLE_UART_WRITE=1 run`
+* GPIO on/off and `counter: %` writes
+
+* `docker-compose exec dev make -C firmware TARGET=local APP_EXAMPLE_IPC=1 run`
+* ASCII display draw
+
+* `docker-compose exec dev make -C firmware TARGET=local APP_EXAMPLE_INPUT_DUMP=1 run` not implemented
+
+* `docker-compose exec dev make -C firmware TARGET=local APP_EXAMPLE_QRCODE=1 run`
+* Some writes to display
+
+* `docker-compose exec dev make -C firmware TARGET=local APP_EXAMPLE_DISPLAY=1 run`
+* Some writes to display
+
+* `docker-compose exec dev make -C firmware TARGET=local APP_EXAMPLE_FATFS=1 flash`
+* TODO: FatFs emulation and test not implemented
+
+F2 target:
+
+* `docker-compose exec dev make -C firmware TARGET=f2 APP_TEST=1 clean`
+* `docker-compose exec dev make -C firmware TARGET=f2 APP_TEST=1 flash`
+* check UART for test pass/fail
+* blue led when test is running
+* green led if test is passed
+* red led if test is failed
+
+* `docker-compose exec dev make -C firmware TARGET=f2 APP_EXAMPLE_BLINK=1 flash`
+* Red LED blink (1s period)
+
+* `docker-compose exec dev make -C firmware TARGET=f2 APP_EXAMPLE_UART_WRITE=1 flash`
+* Red LED shortly blinking, `counter: %` writes to UART
+
+* `docker-compose exec dev make -C firmware TARGET=f2 APP_EXAMPLE_IPC=1 flash`
+* ASCII display draw in UART
+
+* `docker-compose exec dev make -C firmware TARGET=f2 APP_EXAMPLE_INPUT_DUMP=1 flash`
+* Press all buttons, `state` and `event` writes to UART
+
+* `docker-compose exec dev make -C firmware TARGET=f2 APP_EXAMPLE_QRCODE=1 flash`
+* QR code show on the screen
+
+* `docker-compose exec dev make -C firmware TARGET=f2 APP_EXAMPLE_DISPLAY=1 flash`
+* `Hello world` show on the screen
+
+* `docker-compose exec dev make -C firmware TARGET=f2 APP_EXAMPLE_FATFS=1 flash`
+* `Init sd card error` on the screen
+* Insert SD-card
+* Reboot
+* Show file list on the screen
+* Scroll by pressing up and down
\ No newline at end of file
diff --git a/wiki/testing/Input-test.md b/wiki/testing/Input-test.md
new file mode 100644
index 00000000..8c4226e5
--- /dev/null
+++ b/wiki/testing/Input-test.md
@@ -0,0 +1,22 @@
+1. `docker-compose exec dev make -C target_f2 example_input_dump`
+2. Flash
+3. For x in ```
+[
+    (Up, "00"),
+    (Down, "01"),
+    (Right, "02"),
+    (Left, "03"),
+    (Ok, "04"),
+    (Back, "05"),
+]
+```
+    * Press ${x[0]}
+    * wait 0.05
+    * Expect: Uart: "event: ${x[1]} pressed"
+    * wait 0.05
+    * Release ${x[0]}
+    * wait 0.05
+    * Expect: Uart: "event: ${x[1]} released"
+    * wait 0.05
+
+TODO: add debouncing check (multiple press and check there is no multiple events)