package config import ( "fmt" "os" "path/filepath" "strings" "testing" "time" "github.com/micro/go-micro/config/source/env" "github.com/micro/go-micro/config/source/file" ) func createFileForIssue18(t *testing.T, content string) *os.File { data := []byte(content) path := filepath.Join(os.TempDir(), fmt.Sprintf("file.%d", time.Now().UnixNano())) fh, err := os.Create(path) if err != nil { t.Error(err) } _, err = fh.Write(data) if err != nil { t.Error(err) } return fh } func createFileForTest(t *testing.T) *os.File { data := []byte(`{"foo": "bar"}`) path := filepath.Join(os.TempDir(), fmt.Sprintf("file.%d", time.Now().UnixNano())) fh, err := os.Create(path) if err != nil { t.Error(err) } _, err = fh.Write(data) if err != nil { t.Error(err) } return fh } func TestConfigLoadWithGoodFile(t *testing.T) { fh := createFileForTest(t) path := fh.Name() defer func() { fh.Close() os.Remove(path) }() // Create new config conf := NewConfig() // Load file source if err := conf.Load(file.NewSource( file.WithPath(path), )); err != nil { t.Fatalf("Expected no error but got %v", err) } } func TestConfigLoadWithInvalidFile(t *testing.T) { fh := createFileForTest(t) path := fh.Name() defer func() { fh.Close() os.Remove(path) }() // Create new config conf := NewConfig() // Load file source err := conf.Load(file.NewSource( file.WithPath(path), file.WithPath("/i/do/not/exists.json"), )) if err == nil { t.Fatal("Expected error but none !") } if !strings.Contains(fmt.Sprintf("%v", err), "/i/do/not/exists.json") { t.Fatalf("Expected error to contain the unexisting file but got %v", err) } } func TestConfigMerge(t *testing.T) { fh := createFileForIssue18(t, `{ "amqp": { "host": "rabbit.platform", "port": 80 }, "handler": { "exchange": "springCloudBus" } }`) path := fh.Name() defer func() { fh.Close() os.Remove(path) }() os.Setenv("AMQP_HOST", "rabbit.testing.com") conf := NewConfig() conf.Load( file.NewSource( file.WithPath(path), ), env.NewSource(), ) actualHost := conf.Get("amqp", "host").String("backup") if actualHost != "rabbit.testing.com" { t.Fatalf("Expected %v but got %v", "rabbit.testing.com", actualHost) } }