package builder import ( "bytes" "io" "io/ioutil" "net/http" "net/http/httptest" "net/url" "testing" "github.com/docker/docker/pkg/archive" "github.com/docker/docker/pkg/httputils" ) var binaryContext = []byte{0xFD, 0x37, 0x7A, 0x58, 0x5A, 0x00} //xz magic func TestSelectAcceptableMIME(t *testing.T) { validMimeStrings := []string{ "application/x-bzip2", "application/bzip2", "application/gzip", "application/x-gzip", "application/x-xz", "application/xz", "application/tar", "application/x-tar", "application/octet-stream", "text/plain", } invalidMimeStrings := []string{ "", "application/octet", "application/json", } for _, m := range invalidMimeStrings { if len(selectAcceptableMIME(m)) > 0 { t.Fatalf("Should not have accepted %q", m) } } for _, m := range validMimeStrings { if str := selectAcceptableMIME(m); str == "" { t.Fatalf("Should have accepted %q", m) } } } func TestInspectEmptyResponse(t *testing.T) { ct := "application/octet-stream" br := ioutil.NopCloser(bytes.NewReader([]byte(""))) contentType, bReader, err := inspectResponse(ct, br, 0) if err == nil { t.Fatal("Should have generated an error for an empty response") } if contentType != "application/octet-stream" { t.Fatalf("Content type should be 'application/octet-stream' but is %q", contentType) } body, err := ioutil.ReadAll(bReader) if err != nil { t.Fatal(err) } if len(body) != 0 { t.Fatal("response body should remain empty") } } func TestInspectResponseBinary(t *testing.T) { ct := "application/octet-stream" br := ioutil.NopCloser(bytes.NewReader(binaryContext)) contentType, bReader, err := inspectResponse(ct, br, int64(len(binaryContext))) if err != nil { t.Fatal(err) } if contentType != "application/octet-stream" { t.Fatalf("Content type should be 'application/octet-stream' but is %q", contentType) } body, err := ioutil.ReadAll(bReader) if err != nil { t.Fatal(err) } if len(body) != len(binaryContext) { t.Fatalf("Wrong response size %d, should be == len(binaryContext)", len(body)) } for i := range body { if body[i] != binaryContext[i] { t.Fatalf("Corrupted response body at byte index %d", i) } } } func TestResponseUnsupportedContentType(t *testing.T) { content := []byte(dockerfileContents) ct := "application/json" br := ioutil.NopCloser(bytes.NewReader(content)) contentType, bReader, err := inspectResponse(ct, br, int64(len(dockerfileContents))) if err == nil { t.Fatal("Should have returned an error on content-type 'application/json'") } if contentType != ct { t.Fatalf("Should not have altered content-type: orig: %s, altered: %s", ct, contentType) } body, err := ioutil.ReadAll(bReader) if err != nil { t.Fatal(err) } if string(body) != dockerfileContents { t.Fatalf("Corrupted response body %s", body) } } func TestInspectResponseTextSimple(t *testing.T) { content := []byte(dockerfileContents) ct := "text/plain" br := ioutil.NopCloser(bytes.NewReader(content)) contentType, bReader, err := inspectResponse(ct, br, int64(len(content))) if err != nil { t.Fatal(err) } if contentType != "text/plain" { t.Fatalf("Content type should be 'text/plain' but is %q", contentType) } body, err := ioutil.ReadAll(bReader) if err != nil { t.Fatal(err) } if string(body) != dockerfileContents { t.Fatalf("Corrupted response body %s", body) } } func TestInspectResponseEmptyContentType(t *testing.T) { content := []byte(dockerfileContents) br := ioutil.NopCloser(bytes.NewReader(content)) contentType, bodyReader, err := inspectResponse("", br, int64(len(content))) if err != nil { t.Fatal(err) } if contentType != "text/plain" { t.Fatalf("Content type should be 'text/plain' but is %q", contentType) } body, err := ioutil.ReadAll(bodyReader) if err != nil { t.Fatal(err) } if string(body) != dockerfileContents { t.Fatalf("Corrupted response body %s", body) } } func TestUnknownContentLength(t *testing.T) { content := []byte(dockerfileContents) ct := "text/plain" br := ioutil.NopCloser(bytes.NewReader(content)) contentType, bReader, err := inspectResponse(ct, br, -1) if err != nil { t.Fatal(err) } if contentType != "text/plain" { t.Fatalf("Content type should be 'text/plain' but is %q", contentType) } body, err := ioutil.ReadAll(bReader) if err != nil { t.Fatal(err) } if string(body) != dockerfileContents { t.Fatalf("Corrupted response body %s", body) } } func TestMakeRemoteContext(t *testing.T) { contextDir, cleanup := createTestTempDir(t, "", "builder-tarsum-test") defer cleanup() createTestTempFile(t, contextDir, DefaultDockerfileName, dockerfileContents, 0777) mux := http.NewServeMux() server := httptest.NewServer(mux) serverURL, _ := url.Parse(server.URL) serverURL.Path = "/" + DefaultDockerfileName remoteURL := serverURL.String() mux.Handle("/", http.FileServer(http.Dir(contextDir))) remoteContext, err := MakeRemoteContext(remoteURL, map[string]func(io.ReadCloser) (io.ReadCloser, error){ httputils.MimeTypes.TextPlain: func(rc io.ReadCloser) (io.ReadCloser, error) { dockerfile, err := ioutil.ReadAll(rc) if err != nil { return nil, err } r, err := archive.Generate(DefaultDockerfileName, string(dockerfile)) if err != nil { return nil, err } return ioutil.NopCloser(r), nil }, }) if err != nil { t.Fatalf("Error when executing DetectContextFromRemoteURL: %s", err) } if remoteContext == nil { t.Fatal("Remote context should not be nil") } tarSumCtx, ok := remoteContext.(*tarSumContext) if !ok { t.Fatal("Cast error, remote context should be casted to tarSumContext") } fileInfoSums := tarSumCtx.sums if fileInfoSums.Len() != 1 { t.Fatalf("Size of file info sums should be 1, got: %d", fileInfoSums.Len()) } fileInfo := fileInfoSums.GetFile(DefaultDockerfileName) if fileInfo == nil { t.Fatalf("There should be file named %s in fileInfoSums", DefaultDockerfileName) } if fileInfo.Pos() != 0 { t.Fatalf("File %s should have position 0, got %d", DefaultDockerfileName, fileInfo.Pos()) } }