From 058d218254418c1ae681b4b9e5c8a9be93ad69b3 Mon Sep 17 00:00:00 2001 From: Jacques Lucke Date: Thu, 12 Sep 2019 16:51:55 +0200 Subject: BLI: new StringRef and StringRefNull data structures These two data structures reference strings somewhere in memory. They do not own the referenced string. The string is considered const. A string referenced by StringRefNull can be expected to be null-terminated. That is not the case for StringRef. This commit is a continuation of rB369d5e8ad2bb7c2. --- tests/gtests/blenlib/BLI_string_ref_test.cc | 230 ++++++++++++++++++++++++++++ tests/gtests/blenlib/CMakeLists.txt | 1 + 2 files changed, 231 insertions(+) create mode 100644 tests/gtests/blenlib/BLI_string_ref_test.cc (limited to 'tests/gtests') diff --git a/tests/gtests/blenlib/BLI_string_ref_test.cc b/tests/gtests/blenlib/BLI_string_ref_test.cc new file mode 100644 index 00000000000..5605e10ac86 --- /dev/null +++ b/tests/gtests/blenlib/BLI_string_ref_test.cc @@ -0,0 +1,230 @@ +#include "testing/testing.h" +#include "BLI_string_ref.h" +#include "BLI_vector.h" + +using BLI::StringRef; +using BLI::StringRefNull; +using BLI::Vector; + +TEST(string_ref_null, DefaultConstructor) +{ + StringRefNull ref; + EXPECT_EQ(ref.size(), 0); + EXPECT_EQ(ref[0], '\0'); +} + +TEST(string_ref_null, CStringConstructor) +{ + const char *str = "Hello"; + StringRefNull ref(str); + EXPECT_EQ(ref.size(), 5); + EXPECT_EQ(ref.data(), str); +} + +TEST(string_ref_null, CStringLengthConstructor) +{ + const char *str = "Hello"; + StringRefNull ref(str, 5); + EXPECT_EQ(ref.size(), 5); + EXPECT_EQ(ref.data(), str); +} + +TEST(string_ref, DefaultConstructor) +{ + StringRef ref; + EXPECT_EQ(ref.size(), 0); +} + +TEST(string_ref, CStringConstructor) +{ + const char *str = "Test"; + StringRef ref(str); + EXPECT_EQ(ref.size(), 4); + EXPECT_EQ(ref.data(), str); +} + +TEST(string_ref, PointerWithLengthConstructor) +{ + const char *str = "Test"; + StringRef ref(str, 2); + EXPECT_EQ(ref.size(), 2); + EXPECT_EQ(ref.data(), str); +} + +TEST(string_ref, StdStringConstructor) +{ + std::string str = "Test"; + StringRef ref(str); + EXPECT_EQ(ref.size(), 4); + EXPECT_EQ(ref.data(), str.data()); +} + +TEST(string_ref, SubscriptOperator) +{ + StringRef ref("hello"); + EXPECT_EQ(ref.size(), 5); + EXPECT_EQ(ref[0], 'h'); + EXPECT_EQ(ref[1], 'e'); + EXPECT_EQ(ref[2], 'l'); + EXPECT_EQ(ref[3], 'l'); + EXPECT_EQ(ref[4], 'o'); +} + +TEST(string_ref, ToStdString) +{ + StringRef ref("test"); + std::string str = ref; + EXPECT_EQ(str.size(), 4); + EXPECT_EQ(str, "test"); +} + +TEST(string_ref, Print) +{ + StringRef ref("test"); + std::stringstream ss; + ss << ref; + ss << ref; + std::string str = ss.str(); + EXPECT_EQ(str.size(), 8); + EXPECT_EQ(str, "testtest"); +} + +TEST(string_ref, Add) +{ + StringRef a("qwe"); + StringRef b("asd"); + std::string result = a + b; + EXPECT_EQ(result, "qweasd"); +} + +TEST(string_ref, AddCharPtr1) +{ + StringRef ref("test"); + std::string result = ref + "qwe"; + EXPECT_EQ(result, "testqwe"); +} + +TEST(string_ref, AddCharPtr2) +{ + StringRef ref("test"); + std::string result = "qwe" + ref; + EXPECT_EQ(result, "qwetest"); +} + +TEST(string_ref, AddString1) +{ + StringRef ref("test"); + std::string result = ref + std::string("asd"); + EXPECT_EQ(result, "testasd"); +} + +TEST(string_ref, AddString2) +{ + StringRef ref("test"); + std::string result = std::string("asd") + ref; + EXPECT_EQ(result, "asdtest"); +} + +TEST(string_ref, CompareEqual) +{ + StringRef ref1("test"); + StringRef ref2("test"); + StringRef ref3("other"); + EXPECT_TRUE(ref1 == ref2); + EXPECT_FALSE(ref1 == ref3); + EXPECT_TRUE(ref1 != ref3); + EXPECT_FALSE(ref1 != ref2); +} + +TEST(string_ref, CompareEqualCharPtr1) +{ + StringRef ref("test"); + EXPECT_TRUE(ref == "test"); + EXPECT_FALSE(ref == "other"); + EXPECT_TRUE(ref != "other"); + EXPECT_FALSE(ref != "test"); +} + +TEST(string_ref, CompareEqualCharPtr2) +{ + StringRef ref("test"); + EXPECT_TRUE("test" == ref); + EXPECT_FALSE("other" == ref); + EXPECT_TRUE(ref != "other"); + EXPECT_FALSE(ref != "test"); +} + +TEST(string_ref, CompareEqualString1) +{ + StringRef ref("test"); + EXPECT_TRUE(ref == std::string("test")); + EXPECT_FALSE(ref == std::string("other")); + EXPECT_TRUE(ref != std::string("other")); + EXPECT_FALSE(ref != std::string("test")); +} + +TEST(string_ref, CompareEqualString2) +{ + StringRef ref("test"); + EXPECT_TRUE(std::string("test") == ref); + EXPECT_FALSE(std::string("other") == ref); + EXPECT_TRUE(std::string("other") != ref); + EXPECT_FALSE(std::string("test") != ref); +} + +TEST(string_ref, Iterate) +{ + StringRef ref("test"); + Vector chars; + for (char c : ref) { + chars.append(c); + } + EXPECT_EQ(chars.size(), 4); + EXPECT_EQ(chars[0], 't'); + EXPECT_EQ(chars[1], 'e'); + EXPECT_EQ(chars[2], 's'); + EXPECT_EQ(chars[3], 't'); +} + +TEST(string_ref, StartsWith) +{ + StringRef ref("test"); + EXPECT_TRUE(ref.startswith("")); + EXPECT_TRUE(ref.startswith("t")); + EXPECT_TRUE(ref.startswith("te")); + EXPECT_TRUE(ref.startswith("tes")); + EXPECT_TRUE(ref.startswith("test")); + EXPECT_FALSE(ref.startswith("test ")); + EXPECT_FALSE(ref.startswith("a")); +} + +TEST(string_ref, EndsWith) +{ + StringRef ref("test"); + EXPECT_TRUE(ref.endswith("")); + EXPECT_TRUE(ref.endswith("t")); + EXPECT_TRUE(ref.endswith("st")); + EXPECT_TRUE(ref.endswith("est")); + EXPECT_TRUE(ref.endswith("test")); + EXPECT_FALSE(ref.endswith(" test")); + EXPECT_FALSE(ref.endswith("a")); +} + +TEST(string_ref, DropPrefixN) +{ + StringRef ref("test"); + StringRef ref2 = ref.drop_prefix(2); + StringRef ref3 = ref2.drop_prefix(2); + EXPECT_EQ(ref2.size(), 2); + EXPECT_EQ(ref3.size(), 0); + EXPECT_EQ(ref2, "st"); + EXPECT_EQ(ref3, ""); +} + +TEST(string_ref, DropPrefix) +{ + StringRef ref("test"); + StringRef ref2 = ref.drop_prefix("tes"); + EXPECT_EQ(ref2.size(), 1); + EXPECT_EQ(ref2, "t"); +} diff --git a/tests/gtests/blenlib/CMakeLists.txt b/tests/gtests/blenlib/CMakeLists.txt index d2d7b76df6c..d4281aa77b4 100644 --- a/tests/gtests/blenlib/CMakeLists.txt +++ b/tests/gtests/blenlib/CMakeLists.txt @@ -62,6 +62,7 @@ BLENDER_TEST(BLI_polyfill_2d "bf_blenlib") BLENDER_TEST(BLI_stack "bf_blenlib") BLENDER_TEST(BLI_stack_cxx "bf_blenlib") BLENDER_TEST(BLI_string "bf_blenlib") +BLENDER_TEST(BLI_string_ref "bf_blenlib") BLENDER_TEST(BLI_string_utf8 "bf_blenlib") BLENDER_TEST(BLI_task "bf_blenlib;bf_intern_numaapi") BLENDER_TEST(BLI_vector "bf_blenlib") -- cgit v1.2.3