package config import ( "fmt" "os" "path/filepath" "runtime" "strings" "testing" "time" "github.com/micro/go-micro/v2/config/source" "github.com/micro/go-micro/v2/config/source/env" "github.com/micro/go-micro/v2/config/source/file" "github.com/micro/go-micro/v2/config/source/memory" ) 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, err := NewConfig() if err != nil { t.Fatalf("Expected no error but got %v", err) } // 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, err := NewConfig() if err != nil { t.Fatalf("Expected no error but got %v", err) } // 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, err := NewConfig() if err != nil { t.Fatalf("Expected no error but got %v", err) } if err := conf.Load( file.NewSource( file.WithPath(path), ), env.NewSource(), ); err != nil { t.Fatalf("Expected no error but got %v", err) } actualHost := conf.Get("amqp", "host").String("backup") if actualHost != "rabbit.testing.com" { t.Fatalf("Expected %v but got %v", "rabbit.testing.com", actualHost) } } func equalS(t *testing.T, actual, expect string) { if actual != expect { t.Errorf("Expected %s but got %s", actual, expect) } } func TestConfigWatcherDirtyOverrite(t *testing.T) { n := runtime.GOMAXPROCS(0) defer runtime.GOMAXPROCS(n) runtime.GOMAXPROCS(1) l := 100 ss := make([]source.Source, l, l) for i := 0; i < l; i++ { ss[i] = memory.NewSource(memory.WithJSON([]byte(fmt.Sprintf(`{"key%d": "val%d"}`, i, i)))) } conf, _ := NewConfig() for _, s := range ss { _ = conf.Load(s) } runtime.Gosched() for i, _ := range ss { k := fmt.Sprintf("key%d", i) v := fmt.Sprintf("val%d", i) equalS(t, conf.Get(k).String(""), v) } }