Function TestLoadConfigFromFile

config/config_test.go:136–197

(t *testing.T)

}

func TestLoadConfigFromFile(t *testing.T) {
	// Create a temporary file
	tmpFile, err := os.CreateTemp("", "ledgerforge.json")
	if err != nil {
		t.Fatalf("Unable to create temporary file: %v", err)
	}
	defer os.Remove(tmpFile.Name()) // Clean up after the test

	// Sample configuration to write to the temp file
	sampleConfig := Configuration{
		ProjectName: "Temp Project",
		DataSource: DataSourceConfig{
			Dns: "temp-dns",
		},
		Redis: RedisConfig{
			Dns: "temp-redis",
		},
		Transaction: TransactionConfig{
			LockWaitTimeout: 7,
		},
	}
	if err := json.NewEncoder(tmpFile).Encode(sampleConfig); err != nil {
		t.Fatalf("Unable to write to temporary file: %v", err)
	}
	if err := tmpFile.Close(); err != nil {
		t.Fatalf("Failed to close temp file: %v", err)
	} // Close the file so loadConfigFromFile can open it

	// Set an environment variable to override the project name
	if err := os.Setenv("LEDGERFORGE_PROJECT_NAME", "Env Project"); err != nil {
		t.Fatalf("Failed to set env: %v", err)
	}
	defer func() {
		if err := os.Unsetenv("LEDGERFORGE_PROJECT_NAME"); err != nil {
			t.Errorf("Failed to unset env: %v", err)
		}
	}() // Clean up after the test

	// Load the configuration from the file
	if err := loadConfigFromFile(tmpFile.Name()); err != nil {
		t.Fatalf("loadConfigFromFile failed: %v", err)
	}

	// Fetch the loaded configuration
	loadedConfig, err := Fetch()
	if err != nil {
		t.Fatalf("Fetch failed: %v", err)
	}

	// Check if the environment variable override worked
	if loadedConfig.ProjectName != "Env Project" {
		t.Errorf("Expected ProjectName to be 'Env Project', got '%s'", loadedConfig.ProjectName)
	}

	// Check if the DNS was loaded correctly from the file
	if loadedConfig.DataSource.Dns != "temp-dns" {
		t.Errorf("Expected DataSource.Dns to be 'temp-dns', got '%s'", loadedConfig.DataSource.Dns)
	}