1 files changed, 117 insertions, 0 deletions
diff --git a/pkg/test/dockerutil/profile_test.go b/pkg/test/dockerutil/profile_test.go
new file mode 100644
index 000000000..b7b4d7618
--- /dev/null
+++ b/pkg/test/dockerutil/profile_test.go
@@ -0,0 +1,117 @@
+// Copyright 2020 The gVisor Authors.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package dockerutil
+
+import (
+	"context"
+	"fmt"
+	"os"
+	"path/filepath"
+	"testing"
+	"time"
+)
+
+type testCase struct {
+	name          string
+	pprof         Pprof
+	expectedFiles []string
+}
+
+func TestPprof(t *testing.T) {
+	// Basepath and expected file names for each type of profile.
+	basePath := "/tmp/test/profile"
+	block := "block.pprof"
+	cpu := "cpu.pprof"
+	goprofle := "go.pprof"
+	heap := "heap.pprof"
+	mutex := "mutex.pprof"
+
+	testCases := []testCase{
+		{
+			name: "Cpu",
+			pprof: Pprof{
+				BasePath:   basePath,
+				CPUProfile: true,
+				Duration:   2 * time.Second,
+			},
+			expectedFiles: []string{cpu},
+		},
+		{
+			name: "All",
+			pprof: Pprof{
+				BasePath:         basePath,
+				BlockProfile:     true,
+				CPUProfile:       true,
+				GoRoutineProfile: true,
+				HeapProfile:      true,
+				MutexProfile:     true,
+				Duration:         2 * time.Second,
+			},
+			expectedFiles: []string{block, cpu, goprofle, heap, mutex},
+		},
+	}
+	for _, tc := range testCases {
+		t.Run(tc.name, func(t *testing.T) {
+			ctx := context.Background()
+			c := MakeContainer(ctx, t)
+			// Set basepath to include the container name so there are no conflicts.
+			tc.pprof.BasePath = filepath.Join(tc.pprof.BasePath, c.Name)
+			c.AddProfile(&tc.pprof)
+
+			func() {
+				defer c.CleanUp(ctx)
+				// Start a container.
+				if err := c.Spawn(ctx, RunOpts{
+					Image: "basic/alpine",
+				}, "sleep", "1000"); err != nil {
+					t.Fatalf("run failed with: %v", err)
+				}
+
+				if status, err := c.Status(context.Background()); !status.Running {
+					t.Fatalf("container is not yet running: %+v err: %v", status, err)
+				}
+
+				// End early if the expected files exist and have data.
+				for start := time.Now(); time.Since(start) < tc.pprof.Duration; time.Sleep(500 * time.Millisecond) {
+					if err := checkFiles(tc); err == nil {
+						break
+					}
+				}
+			}()
+
+			// Check all expected files exist and have data.
+			if err := checkFiles(tc); err != nil {
+				t.Fatalf(err.Error())
+			}
+		})
+	}
+}
+
+func checkFiles(tc testCase) error {
+	for _, file := range tc.expectedFiles {
+		stat, err := os.Stat(filepath.Join(tc.pprof.BasePath, file))
+		if err != nil {
+			return fmt.Errorf("stat failed with: %v", err)
+		} else if stat.Size() < 1 {
+			return fmt.Errorf("file not written to: %+v", stat)
+		}
+	}
+	return nil
+}
+
+func TestMain(m *testing.M) {
+	EnsureSupportedDockerVersion()
+	os.Exit(m.Run())
+}