add unit tests

cli/azd/pkg/environment/environment_test.go

@@ -179,6 +179,58 @@ func Test_SaveAndReload(t *testing.T) {
 	require.Equal(t, "http://api.example.com/updated", value)
 }
 
+func Test_SaveSpecialCharacters_NoEscaping(t *testing.T) {
+	tempDir := t.TempDir()
+	ostest.Chdir(t, tempDir)
+
+	mockContext := mocks.NewMockContext(context.Background())
+	envManager, azdCtx := createEnvManager(mockContext, t.TempDir())
+
+	env := New("test")
+	require.NotNil(t, env)
+
+	// Set environment variables with special characters that should NOT be escaped
+	env.DotenvSet("TEST1", "!")
+	env.DotenvSet("TEST2", "$")
+	env.DotenvSet("TEST3", "`")
+
+	// Set environment variables using common and escaped characters
+	env.DotenvSet("TEST4", "01")
+	env.DotenvSet("TEST5", "/n")
+	env.DotenvSet("TEST6", "abc")
+
+	// Save the environment
+	err := envManager.Save(*mockContext.Context, env)
+	require.NoError(t, err)
+
+	// Reload the environment to verify the values are correctly saved
+	env2, err := envManager.Get(*mockContext.Context, "test")
+	require.NoError(t, err)
+
+	// Verify that the values are correctly set
+	require.Equal(t, "!", env2.dotenv["TEST1"])
+	require.Equal(t, "$", env2.dotenv["TEST2"])
+	require.Equal(t, "`", env2.dotenv["TEST3"])
+	require.Equal(t, "01", env2.dotenv["TEST4"])
+	require.Equal(t, "/n", env2.dotenv["TEST5"])
+	require.Equal(t, "abc", env2.dotenv["TEST6"])
+
+	// Optionally, read the .env file content to verify special character escaping
+	envRoot := azdCtx.EnvironmentRoot("test")
+	envPath := filepath.Join(envRoot, azdcontext.DotEnvFileName)
+
+	envMap, err := godotenv.Read(envPath)
+	require.NoError(t, err)
+
+	// Verify the .env file content directly for expected escaping
+	require.Equal(t, "!", envMap["TEST1"])
+	require.Equal(t, "$", envMap["TEST2"])
+	require.Equal(t, "`", envMap["TEST3"])
+	require.Equal(t, "01", envMap["TEST4"])
+	require.Equal(t, "/n", envMap["TEST5"])
+	require.Equal(t, "abc", envMap["TEST6"])
+}
+
 func TestCleanName(t *testing.T) {
 	require.Equal(t, "already-clean-name", CleanName("already-clean-name"))
 	require.Equal(t, "was-CLEANED-with--bad--things-(123)", CleanName("was CLEANED with *bad* things (123)"))