Add an integration test for skaffold credits

Signed-off-by: David Gageot <david@gageot.net>

integration/credits_test.go

@@ -0,0 +1,43 @@
+/*
+Copyright 2019 The Skaffold 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 integration
+
+import (
+	"io/ioutil"
+	"testing"
+
+	"github.com/GoogleContainerTools/skaffold/integration/skaffold"
+	"github.com/GoogleContainerTools/skaffold/testutil"
+)
+
+func TestCredits(t *testing.T) {
+	if testing.Short() || RunOnGCP() {
+		t.Skip("skipping kind integration test")
+	}
+
+	testutil.Run(t, "credits", func(t *testutil.T) {
+		tmpDir := t.NewTempDir().Chdir()
+
+		out, err := skaffold.Credits().RunWithCombinedOutput(t.T)
+		t.CheckNoError(err)
+		t.CheckContains("Successfully exported third party notices", string(out))
+
+		content, err := ioutil.ReadFile(tmpDir.Path("skaffold-credits/github.com/docker/docker/LICENSE"))
+		t.CheckNoError(err)
+		t.CheckContains("Apache License", string(content))
+	})
+}

integration/skaffold/helper.go

@@ -98,6 +98,11 @@ func Schema(args ...string) *RunBuilder {
 	return &RunBuilder{command: "schema", args: args}
 }
 
+// Credits runs `skaffold credits` with the given arguments.
+func Credits(args ...string) *RunBuilder {
+	return &RunBuilder{command: "credits", args: args}
+}
+
 func GeneratePipeline(args ...string) *RunBuilder {
 	return &RunBuilder{command: "generate-pipeline", args: args}
 }