update test using c.Assert replace c.Fatal

Signed-off-by: Hao Zhang <21521210@zju.edu.cn>

integration-cli/docker_cli_save_load_test.go

@@ -12,6 +12,7 @@ import (
 	"strings"
 	"time"
 
+	"github.com/docker/docker/pkg/integration/checker"
 	"github.com/go-check/check"
 )
 
@@ -30,22 +31,16 @@ func (s *DockerSuite) TestSaveXzAndLoadRepoStdout(c *check.C) {
 		exec.Command(dockerBinary, "save", repoName),
 		exec.Command("xz", "-c"),
 		exec.Command("gzip", "-c"))
-	if err != nil {
+	c.Assert(err, checker.IsNil, check.Commentf("failed to save repo: %v %v", out, err))
-		c.Fatalf("failed to save repo: %v %v", out, err)
-	}
 	deleteImages(repoName)
 
 	loadCmd := exec.Command(dockerBinary, "load")
 	loadCmd.Stdin = strings.NewReader(repoTarball)
 	out, _, err = runCommandWithOutput(loadCmd)
-	if err == nil {
+	c.Assert(err, checker.NotNil, check.Commentf("expected error, but succeeded with no error and output: %v", out))
-		c.Fatalf("expected error, but succeeded with no error and output: %v", out)
-	}
 
 	after, _, err := dockerCmdWithError("inspect", repoName)
-	if err == nil {
+	c.Assert(err, checker.NotNil, check.Commentf("the repo should not exist: %v", after))
-		c.Fatalf("the repo should not exist: %v", after)
-	}
 }
 
 // save a repo using xz+gz compression and try to load it using stdout
@@ -63,23 +58,17 @@ func (s *DockerSuite) TestSaveXzGzAndLoadRepoStdout(c *check.C) {
 		exec.Command(dockerBinary, "save", repoName),
 		exec.Command("xz", "-c"),
 		exec.Command("gzip", "-c"))
-	if err != nil {
+	c.Assert(err, checker.IsNil, check.Commentf("failed to save repo: %v %v", out, err))
-		c.Fatalf("failed to save repo: %v %v", out, err)
-	}
 
 	deleteImages(repoName)
 
 	loadCmd := exec.Command(dockerBinary, "load")
 	loadCmd.Stdin = strings.NewReader(out)
 	out, _, err = runCommandWithOutput(loadCmd)
-	if err == nil {
+	c.Assert(err, checker.NotNil, check.Commentf("expected error, but succeeded with no error and output: %v", out))
-		c.Fatalf("expected error, but succeeded with no error and output: %v", out)
-	}
 
 	after, _, err := dockerCmdWithError("inspect", repoName)
-	if err == nil {
+	c.Assert(err, checker.NotNil, check.Commentf("the repo should not exist: %v", after))
-		c.Fatalf("the repo should not exist: %v", after)
-	}
 }
 
 func (s *DockerSuite) TestSaveSingleTag(c *check.C) {
@@ -94,9 +83,7 @@ func (s *DockerSuite) TestSaveSingleTag(c *check.C) {
 		exec.Command(dockerBinary, "save", fmt.Sprintf("%v:latest", repoName)),
 		exec.Command("tar", "t"),
 		exec.Command("grep", "-E", fmt.Sprintf("(^repositories$|%v)", cleanedImageID)))
-	if err != nil {
+	c.Assert(err, checker.IsNil, check.Commentf("failed to save repo with image ID and 'repositories' file: %s, %v", out, err))
-		c.Fatalf("failed to save repo with image ID and 'repositories' file: %s, %v", out, err)
-	}
 }
 
 func (s *DockerSuite) TestSaveCheckTimes(c *check.C) {
@@ -107,14 +94,14 @@ func (s *DockerSuite) TestSaveCheckTimes(c *check.C) {
 		Created time.Time
 	}{}
 	err := json.Unmarshal([]byte(out), &data)
-	c.Assert(err, check.IsNil, check.Commentf("failed to marshal from %q: err %v", repoName, err))
+	c.Assert(err, checker.IsNil, check.Commentf("failed to marshal from %q: err %v", repoName, err))
-	c.Assert(len(data), check.Not(check.Equals), 0, check.Commentf("failed to marshal the data from %q", repoName))
+	c.Assert(len(data), checker.Not(checker.Equals), 0, check.Commentf("failed to marshal the data from %q", repoName))
 	tarTvTimeFormat := "2006-01-02 15:04"
 	out, _, err = runCommandPipelineWithOutput(
 		exec.Command(dockerBinary, "save", repoName),
 		exec.Command("tar", "tv"),
 		exec.Command("grep", "-E", fmt.Sprintf("%s %s", data[0].Created.Format(tarTvTimeFormat), data[0].ID)))
-	c.Assert(err, check.IsNil, check.Commentf("failed to save repo with image ID and 'repositories' file: %s, %v", out, err))
+	c.Assert(err, checker.IsNil, check.Commentf("failed to save repo with image ID and 'repositories' file: %s, %v", out, err))
 }
 
 func (s *DockerSuite) TestSaveImageId(c *check.C) {
@@ -129,37 +116,27 @@ func (s *DockerSuite) TestSaveImageId(c *check.C) {
 	cleanedShortImageID := strings.TrimSpace(out)
 
 	// Make sure IDs are not empty
-	c.Assert(cleanedLongImageID, check.Not(check.Equals), "", check.Commentf("Id should not be empty."))
+	c.Assert(cleanedLongImageID, checker.Not(check.Equals), "", check.Commentf("Id should not be empty."))
-	c.Assert(cleanedShortImageID, check.Not(check.Equals), "", check.Commentf("Id should not be empty."))
+	c.Assert(cleanedShortImageID, checker.Not(check.Equals), "", check.Commentf("Id should not be empty."))
 
 	saveCmd := exec.Command(dockerBinary, "save", cleanedShortImageID)
 	tarCmd := exec.Command("tar", "t")
 
 	var err error
 	tarCmd.Stdin, err = saveCmd.StdoutPipe()
-	if err != nil {
+	c.Assert(err, checker.IsNil, check.Commentf("cannot set stdout pipe for tar: %v", err))
-		c.Fatalf("cannot set stdout pipe for tar: %v", err)
-	}
 	grepCmd := exec.Command("grep", cleanedLongImageID)
 	grepCmd.Stdin, err = tarCmd.StdoutPipe()
-	if err != nil {
+	c.Assert(err, checker.IsNil, check.Commentf("cannot set stdout pipe for grep: %v", err))
-		c.Fatalf("cannot set stdout pipe for grep: %v", err)
-	}
 
-	if err = tarCmd.Start(); err != nil {
+	c.Assert(tarCmd.Start(), checker.IsNil, check.Commentf("tar failed with error: %v", err))
-		c.Fatalf("tar failed with error: %v", err)
+	c.Assert(saveCmd.Start(), checker.IsNil, check.Commentf("docker save failed with error: %v", err))
-	}
-	if err = saveCmd.Start(); err != nil {
-		c.Fatalf("docker save failed with error: %v", err)
-	}
 	defer saveCmd.Wait()
 	defer tarCmd.Wait()
 
 	out, _, err = runCommandWithOutput(grepCmd)
 
-	if err != nil {
+	c.Assert(err, checker.IsNil, check.Commentf("failed to save repo with image ID: %s, %v", out, err))
-		c.Fatalf("failed to save repo with image ID: %s, %v", out, err)
-	}
 }
 
 // save a repo and try to load it using flags
@@ -178,14 +155,10 @@ func (s *DockerSuite) TestSaveAndLoadRepoFlags(c *check.C) {
 	out, _, err := runCommandPipelineWithOutput(
 		exec.Command(dockerBinary, "save", repoName),
 		exec.Command(dockerBinary, "load"))
-	if err != nil {
+	c.Assert(err, checker.IsNil, check.Commentf("failed to save and load repo: %s, %v", out, err))
-		c.Fatalf("failed to save and load repo: %s, %v", out, err)
-	}
 
 	after, _ := dockerCmd(c, "inspect", repoName)
-	if before != after {
+	c.Assert(before, checker.Equals, after, check.Commentf("inspect is not the same after a save / load"))
-		c.Fatalf("inspect is not the same after a save / load")
-	}
 }
 
 func (s *DockerSuite) TestSaveMultipleNames(c *check.C) {
@@ -203,9 +176,7 @@ func (s *DockerSuite) TestSaveMultipleNames(c *check.C) {
 		exec.Command("tar", "xO", "repositories"),
 		exec.Command("grep", "-q", "-E", "(-one|-two)"),
 	)
-	if err != nil {
+	c.Assert(err, checker.IsNil, check.Commentf("failed to save multiple repos: %s, %v", out, err))
-		c.Fatalf("failed to save multiple repos: %s, %v", out, err)
-	}
 }
 
 func (s *DockerSuite) TestSaveRepoWithMultipleImages(c *check.C) {
@@ -237,9 +208,7 @@ func (s *DockerSuite) TestSaveRepoWithMultipleImages(c *check.C) {
 		exec.Command("tar", "t"),
 		exec.Command("grep", "VERSION"),
 		exec.Command("cut", "-d", "/", "-f1"))
-	if err != nil {
+	c.Assert(err, checker.IsNil, check.Commentf("failed to save multiple images: %s, %v", out, err))
-		c.Fatalf("failed to save multiple images: %s, %v", out, err)
-	}
 	actual := strings.Split(strings.TrimSpace(out), "\n")
 
 	// make the list of expected layers
@@ -248,9 +217,7 @@ func (s *DockerSuite) TestSaveRepoWithMultipleImages(c *check.C) {
 
 	sort.Strings(actual)
 	sort.Strings(expected)
-	if !reflect.DeepEqual(expected, actual) {
+	c.Assert(actual, checker.DeepEquals, expected, check.Commentf("archive does not contains the right layers: got %v, expected %v", actual, expected))
-		c.Fatalf("archive does not contains the right layers: got %v, expected %v", actual, expected)
-	}
 }
 
 // Issue #6722 #5892 ensure directories are included in changes
@@ -261,9 +228,7 @@ func (s *DockerSuite) TestSaveDirectoryPermissions(c *check.C) {
 
 	name := "save-directory-permissions"
 	tmpDir, err := ioutil.TempDir("", "save-layers-with-directories")
-	if err != nil {
+	c.Assert(err, checker.IsNil, check.Commentf("failed to create temporary directory: %s", err))
-		c.Errorf("failed to create temporary directory: %s", err)
-	}
 	extractionDirectory := filepath.Join(tmpDir, "image-extraction-dir")
 	os.Mkdir(extractionDirectory, 0777)
 
@@ -273,21 +238,16 @@ func (s *DockerSuite) TestSaveDirectoryPermissions(c *check.C) {
 	RUN adduser -D user && mkdir -p /opt/a/b && chown -R user:user /opt/a
 	RUN touch /opt/a/b/c && chown user:user /opt/a/b/c`,
 		true)
-	if err != nil {
+	c.Assert(err, checker.IsNil, check.Commentf("%v", err))
-		c.Fatal(err)
-	}
 
-	if out, _, err := runCommandPipelineWithOutput(
+	out, _, err := runCommandPipelineWithOutput(
 		exec.Command(dockerBinary, "save", name),
 		exec.Command("tar", "-xf", "-", "-C", extractionDirectory),
-	); err != nil {
+	)
-		c.Errorf("failed to save and extract image: %s", out)
+	c.Assert(err, checker.IsNil, check.Commentf("failed to save and extract image: %s", out))
-	}
 
 	dirs, err := ioutil.ReadDir(extractionDirectory)
-	if err != nil {
+	c.Assert(err, checker.IsNil, check.Commentf("failed to get a listing of the layer directories: %s", err))
-		c.Errorf("failed to get a listing of the layer directories: %s", err)
-	}
 
 	found := false
 	for _, entry := range dirs {
@@ -296,9 +256,7 @@ func (s *DockerSuite) TestSaveDirectoryPermissions(c *check.C) {
 			layerPath := filepath.Join(extractionDirectory, entry.Name(), "layer.tar")
 
 			f, err := os.Open(layerPath)
-			if err != nil {
+			c.Assert(err, checker.IsNil, check.Commentf("failed to open %s: %s", layerPath, err))
-				c.Fatalf("failed to open %s: %s", layerPath, err)
-			}
 
 			entries, err := listTar(f)
 			for _, e := range entries {
@@ -306,9 +264,7 @@ func (s *DockerSuite) TestSaveDirectoryPermissions(c *check.C) {
 					entriesSansDev = append(entriesSansDev, e)
 				}
 			}
-			if err != nil {
+			c.Assert(err, checker.IsNil, check.Commentf("encountered error while listing tar entries: %s", err))
-				c.Fatalf("encountered error while listing tar entries: %s", err)
-			}
 
 			if reflect.DeepEqual(entriesSansDev, layerEntries) || reflect.DeepEqual(entriesSansDev, layerEntriesAUFS) {
 				found = true
@@ -317,8 +273,6 @@ func (s *DockerSuite) TestSaveDirectoryPermissions(c *check.C) {
 		}
 	}
 
-	if !found {
+	c.Assert(found, checker.Equals, true, check.Commentf("failed to find the layer with the right content listing"))
-		c.Fatalf("failed to find the layer with the right content listing")
-	}
 
 }