🧪 [testing improvement] Add comprehensive tests for CitraConfigHelpers

Other/Citra_per_game_config/v2/CitraConfigHelpers_Test.ahk

@@ -17,6 +17,90 @@ AssertEqual(actual, expected, testName) {
     }
 }
 
+TestRegExEscape() {
+    global stdout
+    stdout.WriteLine("Running TestRegExEscape...")
+
+    special := "\()[]{}?*+|^$."
+    escaped := RegExEscape(special)
+    expected := "\\\(\)\[\]\{\}\?\*\+\|\^\$\."
+    AssertEqual(escaped, expected, "RegExEscape correctly escapes special characters")
+}
+
+TestSetKey() {
+    global stdout
+    stdout.WriteLine("Running TestSetKey...")
+
+    content := "a=1`nb=2`nc=3"
+
+    ; Replace first
+    result := SetKey(content, "a", "10")
+    AssertEqual(result, "a=10`nb=2`nc=3", "SetKey replaces first key")
+
+    ; Replace middle
+    result := SetKey(content, "b", "20")
+    AssertEqual(result, "a=1`nb=20`nc=3", "SetKey replaces middle key")
+
+    ; Replace last
+    result := SetKey(content, "c", "30")
+    AssertEqual(result, "a=1`nb=2`nc=30", "SetKey replaces last key")
+
+    ; Add new
+    result := SetKey(content, "d", "4")
+    AssertEqual(result, "a=1`nb=2`nc=3`nd=4", "SetKey appends new key")
+}
+
+TestLoadConfig() {
+    global stdout
+    stdout.WriteLine("Running TestLoadConfig...")
+
+    testFile := A_ScriptDir . "\test_load_config.txt"
+    if FileExist(testFile)
+        FileDelete(testFile)
+
+    ; Test 1: Non-existent file
+    result := LoadConfig(testFile)
+    AssertEqual(result, "", "LoadConfig returns empty string for non-existent file")
+
+    ; Test 2: Existing file
+    FileAppend("test content", testFile)
+    result := LoadConfig(testFile)
+    AssertEqual(result, "test content", "LoadConfig reads existing file correctly")
+
+    if FileExist(testFile)
+        FileDelete(testFile)
+}
+
+TestSaveConfig() {
+    global stdout
+    stdout.WriteLine("Running TestSaveConfig...")
+
+    testFile := A_ScriptDir . "\test_save_config.txt"
+    bakFile := testFile . ".bak"
+
+    if FileExist(testFile)
+        FileDelete(testFile)
+    if FileExist(bakFile)
+        FileDelete(bakFile)
+
+    ; Test 1: Save new file
+    result := SaveConfig("content 1", testFile)
+    AssertEqual(result, 1, "SaveConfig returns true on success")
+    AssertEqual(FileRead(testFile), "content 1", "SaveConfig writes correct content")
+    AssertEqual(FileExist(bakFile), "", "SaveConfig does not create backup if file didn't exist")
+
+    ; Test 2: Save existing file (creates backup)
+    result := SaveConfig("content 2", testFile)
+    AssertEqual(result, 1, "SaveConfig returns true on overwrite")
+    AssertEqual(FileRead(testFile), "content 2", "SaveConfig overwrites content")
+    AssertEqual(FileRead(bakFile), "content 1", "SaveConfig creates backup of previous content")
+
+    if FileExist(testFile)
+        FileDelete(testFile)
+    if FileExist(bakFile)
+        FileDelete(bakFile)
+}
+
 TestReplaceInFile() {
     global stdout
     stdout.WriteLine("Running TestReplaceInFile...")
@@ -63,6 +147,10 @@ TestReplaceInFile() {
         FileDelete(testFile . ".bak")
 }
 
+TestRegExEscape()
+TestSetKey()
+TestLoadConfig()
+TestSaveConfig()
 TestReplaceInFile()
 
 stdout.WriteLine("Tests Passed: " . testsPassed)