improved coverage of Builder.teardown function in pkg/build

pkg/build/build.go

@@ -58,11 +58,13 @@ type Builder struct {
 	Key []byte
 
 	// Timeout is the maximum amount of to will wait for a process
-	// to exit.
-	//
-	// The default is no timeout.
+	// to exit. The default is no timeout.
 	Timeout time.Duration
 
+	// Privileged indicates the build should be executed in privileged
+	// mode. The default is false.
+	Privileged bool
+
 	// Stdout specifies the builds's standard output.
 	//
 	// If stdout is nil, Run connects the corresponding file descriptor
@@ -306,9 +308,12 @@ func (b *Builder) run() error {
 		AttachStdout: true,
 		AttachStderr: true,
 	}
-	host := docker.HostConfig{
-		Privileged: false,
-	}
+
+	// configure if Docker should run in privileged mode.
+	// by default, this is disabled for pull requests for
+	// security reasons.
+	host := docker.HostConfig{}
+	host.Privileged = b.Privileged && len(b.Repo.PR) == 0
 
 	// debugging
 	log.Noticef("starting build %s", b.Build.Name)
@@ -325,15 +330,15 @@ func (b *Builder) run() error {
 	}
 
 	// where are temp files going to go?
-	tmp_path := "/tmp/drone"
+	tmpPath := "/tmp/drone"
 	if len(os.Getenv("DRONE_TMP")) > 0 {
-		tmp_path = os.Getenv("DRONE_TMP")
+		tmpPath = os.Getenv("DRONE_TMP")
 	}
 
-	log.Infof("temp directory is %s", tmp_path)
+	log.Infof("temp directory is %s", tmpPath)
 
-	if err := os.MkdirAll(tmp_path, 0777); err != nil {
-		return fmt.Errorf("Failed to create temp directory at %s: %s", tmp_path, err)
+	if err := os.MkdirAll(tmpPath, 0777); err != nil {
+		return fmt.Errorf("Failed to create temp directory at %s: %s", tmpPath, err)
 	}
 
 	// link cached volumes
@@ -352,7 +357,7 @@ func (b *Builder) run() error {
 
 		// local cache path on the host machine
 		// this path is going to be really long
-		hostpath := filepath.Join(tmp_path, name, branch, volume)
+		hostpath := filepath.Join(tmpPath, name, branch, volume)
 
 		// check if the volume is created
 		if _, err := os.Stat(hostpath); err != nil {
@@ -474,7 +479,7 @@ func (b *Builder) writeBuildScript(dir string) error {
 	f.WriteEnv("DRONE_PR", b.Repo.PR)
 	f.WriteEnv("DRONE_BUILD_DIR", b.Repo.Dir)
 
- 	// add /etc/hosts entries
+	// add /etc/hosts entries
 	for _, mapping := range b.Build.Hosts {
 		f.WriteHost(mapping)
 	}

pkg/build/build_test.go

@@ -274,15 +274,74 @@ func TestSetupErrorBuildInspect(t *testing.T) {
 
 // TestTeardown will test our ability to sucessfully teardown a
 // Docker-based build environment.
-func TestTeardown(t *testing.T) {}
+func TestTeardown(t *testing.T) {
+	setup()
+	defer teardown()
 
-// TestTeardownContainerFail will test our ability to handle a
-// failure to stop and remove the build container.
-func TestTeardownContainerFail(t *testing.T) {}
+	var (
+		containerStopped = false
+		containerRemoved = false
+		serviceStopped   = false
+		serviceRemoved   = false
+		imageRemoved     = false
+	)
 
-// TestTeardownImageFail will test our ability to handle a
-// failure to stop and remove the build image.
-func TestTeardownImageFail(t *testing.T) {}
+	mux.HandleFunc("/v1.9/containers/7bf9ce0ffb/stop", func(w http.ResponseWriter, r *http.Request) {
+		containerStopped = true
+		w.WriteHeader(http.StatusOK)
+	})
+
+	mux.HandleFunc("/v1.9/containers/7bf9ce0ffb", func(w http.ResponseWriter, r *http.Request) {
+		containerRemoved = true
+		w.WriteHeader(http.StatusOK)
+	})
+
+	mux.HandleFunc("/v1.9/containers/ec62dcc736/stop", func(w http.ResponseWriter, r *http.Request) {
+		serviceStopped = true
+		w.WriteHeader(http.StatusOK)
+	})
+
+	mux.HandleFunc("/v1.9/containers/ec62dcc736", func(w http.ResponseWriter, r *http.Request) {
+		serviceRemoved = true
+		w.WriteHeader(http.StatusOK)
+	})
+
+	mux.HandleFunc("/v1.9/images/c3ab8ff137", func(w http.ResponseWriter, r *http.Request) {
+		imageRemoved = true
+		w.Write([]byte(`[{"Untagged":"c3ab8ff137"},{"Deleted":"c3ab8ff137"}]`))
+	})
+
+	b := Builder{}
+	b.dockerClient = client
+	b.services = append(b.services, &docker.Container{ID: "ec62dcc736"})
+	b.container = &docker.Run{ID: "7bf9ce0ffb"}
+	b.image = &docker.Image{ID: "c3ab8ff137"}
+	b.Build = &script.Build{Services: []string{"mysql"}}
+	b.teardown()
+
+	if !containerStopped {
+		t.Errorf("Expected Docker container was stopped")
+	}
+
+	if !containerRemoved {
+		t.Errorf("Expected Docker container was removed")
+	}
+
+	if !serviceStopped {
+		t.Errorf("Expected Docker mysql container was stopped")
+	}
+
+	if !serviceRemoved {
+		t.Errorf("Expected Docker mysql container was removed")
+	}
+
+	if !imageRemoved {
+		t.Errorf("Expected Docker image was removed")
+	}
+
+	// TODO test service container stop
+	// TODO test service container remove
+}
 
 func TestWriteIdentifyFile(t *testing.T) {
 	// temporary directory to store file