Add e2e test for the init with an invalid file

Signed-off-by: Djordje Lukic <djordje.lukic@docker.com>

Author: rumpl

e2e/commands_test.go

@@ -226,6 +226,18 @@ maintainers:
 	golden.Assert(t, stdOut, "validate-output.golden")
 }
 
+func TestInitWithInvalidCompose(t *testing.T) {
+	cmd, cleanup := dockerCli.createTestCmd()
+	defer cleanup()
+	composePath := filepath.Join("testdata", "invalid-compose", "docker-compose.yml")
+
+	cmd.Command = dockerCli.Command("app", "init", "invalid", "--compose-file", composePath)
+	stdOut := icmd.RunCmd(cmd).Assert(t, icmd.Expected{
+		ExitCode: 1,
+	}).Combined()
+	golden.Assert(t, stdOut, "init-invalid-output.golden")
+}
+
 func TestInspectApp(t *testing.T) {
 	runWithDindSwarmAndRegistry(t, func(info dindSwarmAndRegistryInfo) {
 		cmd := info.configuredCmd

e2e/testdata/init-invalid-output.golden

@@ -0,0 +1,4 @@
+Compose file validation failed:
+* can't use relative path as volume source ("./src:/src") in service "api"
+* can't use relative path as volume source ("./static:/opt/${static_subdir}") in service "web"
+* secret "my_secret" should be external

e2e/testdata/invalid-compose/docker-compose.yml

@@ -0,0 +1,15 @@
+version: "3.6"
+services:
+  api:
+    image: python:3.6
+    volumes:
+      - ./src:/src
+  web:
+    image: nginx
+    networks:
+      - front
+    volumes:
+      - ./static:/opt/${static_subdir}
+secrets:
+  my_secret:
+    first: ./path/to/secret.txt