1 files changed, 163 insertions, 0 deletions
diff --git a/tests/ts-roundtrip.cpp b/tests/ts-roundtrip.cpp
new file mode 100644
index 0000000..3808a08
--- /dev/null
+++ b/tests/ts-roundtrip.cpp
@@ -0,0 +1,163 @@
+#include "pch.h"
+#include <algorithm>
+#include "../SimpleIni.h"
+
+class TestRoundTrip : public ::testing::Test {
+protected:
+	void TestRoundTrip::SetUp() override;
+	void TestMulti();
+	void TestBOM(bool useBOM);
+
+protected:
+	CSimpleIniA ini;
+	std::string input;
+	std::string output;
+};
+
+void TestRoundTrip::SetUp() {
+	ini.SetUnicode();
+}
+
+TEST_F(TestRoundTrip, TestStandard) {
+	input =
+		"; File comment\n"
+		"\n"
+		"\n"
+		"; Section 1 comment\n"
+		"[section1]\n"
+		"\n"
+		"\n"
+		"; Section 2 comment\n"
+		"[section2]\n"
+		"key1 = string\n"
+		"key2 = true\n"
+		"key3 = 3.1415\n"
+		;
+
+	SI_Error rc = ini.LoadData(input);
+	ASSERT_EQ(rc, SI_OK);
+
+	const char* result = ini.GetValue("section2", "key1");
+	ASSERT_STREQ(result, "string");
+
+	rc = ini.Save(output);
+	ASSERT_EQ(rc, SI_OK);
+
+	output.erase(std::remove(output.begin(), output.end(), '\r'), output.end());
+	ASSERT_STREQ(input.c_str(), output.c_str());
+}
+
+void TestRoundTrip::TestMulti() {
+	input =
+		"[section]\n"
+		"key = string1\n"
+		"key = string2\n"
+		;
+
+	SI_Error rc = ini.LoadData(input);
+	ASSERT_EQ(rc, SI_OK);
+
+	rc = ini.Save(output);
+	ASSERT_EQ(rc, SI_OK);
+
+	output.erase(std::remove(output.begin(), output.end(), '\r'), output.end());
+}
+
+TEST_F(TestRoundTrip, TestMultiGood) {
+	ini.SetMultiKey(true);
+	TestMulti();
+	ASSERT_STREQ(input.c_str(), output.c_str());
+}
+
+TEST_F(TestRoundTrip, TestMultiBad) {
+	std::string expected =
+		"[section]\n"
+		"key = string2\n";
+
+	ini.SetMultiKey(false);
+	TestMulti();
+	ASSERT_STRNE(input.c_str(), output.c_str());
+	ASSERT_STREQ(expected.c_str(), output.c_str());
+}
+
+TEST_F(TestRoundTrip, TestSpacesTrue) {
+	input =
+		"[section]\n"
+		"key = string1\n";
+
+	SI_Error rc = ini.LoadData(input);
+	ASSERT_EQ(rc, SI_OK);
+
+	ini.SetSpaces(true);
+	rc = ini.Save(output);
+	ASSERT_EQ(rc, SI_OK);
+
+	output.erase(std::remove(output.begin(), output.end(), '\r'), output.end());
+	
+	ASSERT_STREQ(input.c_str(), output.c_str());
+}
+
+TEST_F(TestRoundTrip, TestSpacesFalse) {
+	input =
+		"[section]\n"
+		"key = string1\n";
+
+	SI_Error rc = ini.LoadData(input);
+	ASSERT_EQ(rc, SI_OK);
+
+	ini.SetSpaces(false);
+	rc = ini.Save(output);
+	ASSERT_EQ(rc, SI_OK);
+
+	output.erase(std::remove(output.begin(), output.end(), '\r'), output.end());
+
+	ASSERT_STRNE(input.c_str(), output.c_str());
+
+	std::string expected =
+		"[section]\n"
+		"key=string1\n";
+
+	ASSERT_STREQ(expected.c_str(), output.c_str());
+}
+
+void TestRoundTrip::TestBOM(bool useBOM) {
+	const char bom[] = "\xEF\xBB\xBF";
+	const char input8[] =
+		u8"[テスト1]\n"
+		u8"テスト2 = テスト3\n";
+
+	input = bom;
+	input += input8;
+
+	ini.Reset();
+	ini.SetUnicode(false);
+	SI_Error rc = ini.LoadData(input);
+	ASSERT_EQ(rc, SI_OK);
+
+	const char tesuto1[] = u8"テスト1";
+	const char tesuto2[] = u8"テスト2";
+	const char tesuto3[] = u8"テスト3";
+
+	const char* result = ini.GetValue(tesuto1, tesuto2);
+	ASSERT_STREQ(result, tesuto3);
+
+	rc = ini.Save(output, useBOM);
+	ASSERT_EQ(rc, SI_OK);
+
+	output.erase(std::remove(output.begin(), output.end(), '\r'), output.end());
+}
+
+TEST_F(TestRoundTrip, TestWithBOM) {
+	TestBOM(true);
+
+	ASSERT_STREQ(input.c_str(), output.c_str());
+}
+
+TEST_F(TestRoundTrip, TestWithoutBOM) {
+	TestBOM(false);
+
+	ASSERT_STRNE(input.c_str(), output.c_str());
+
+	std::string expected(input, 3);
+	ASSERT_STREQ(expected.c_str(), output.c_str());
+}