Enable fan-in fan-out e2e test

fixes tektoncd#375

- It was disabled when gke test infrastructure was run in multi regional
cluster and multiple PVCs were allocated across regions. Entrypoint PVC
has been removed in last release and there is only one PVC created to
support sharing resources across taskruns

test/pipelinerun_test.go

@@ -79,9 +79,7 @@ func TestPipelineRun(t *testing.T) {
 		expectedTaskRuns: []string{"create-file-kritis", "create-fan-out-1", "create-fan-out-2", "check-fan-in"},
 		// 1 from PipelineRun and 4 from Tasks defined in pipelinerun
 		expectedNumberOfEvents: 5,
-	}}
-	// TODO(#375): Reenable the 'fan-in and fan-out' test once it's fixed.
-	tds = []tests{{
+	}, {
 		name: "service account propagation",
 		testSetup: func(t *testing.T, c *clients, namespace string, index int) {
 			t.Helper()
@@ -205,14 +203,15 @@ func getFanInFanOutTasks(namespace string) []*v1alpha1.Task {
 			tb.TaskInputs(tb.InputsResource("workspace", v1alpha1.PipelineResourceTypeGit,
 				tb.ResourceTargetPath("brandnewspace"),
 			)),
-			tb.TaskOutputs(tb.OutputsResource("workspace", v1alpha1.PipelineResourceTypeGit)),
+			tb.TaskOutputs(outWorkspaceResource),
 			tb.Step("write-data-task-0-step-0", "ubuntu", tb.Command("/bin/bash"),
 				tb.Args("-c", "echo stuff > /workspace/brandnewspace/stuff"),
 			),
 			tb.Step("write-data-task-0-step-1", "ubuntu", tb.Command("/bin/bash"),
 				tb.Args("-c", "echo other > /workspace/brandnewspace/other"),
 			),
-		)), tb.Task("check-create-files-exists", namespace, tb.TaskSpec(
+		)),
+		tb.Task("check-create-files-exists", namespace, tb.TaskSpec(
 			tb.TaskInputs(inWorkspaceResource),
 			tb.TaskOutputs(outWorkspaceResource),
 			tb.Step("read-from-task-0", "ubuntu", tb.Command("/bin/bash"),
@@ -221,7 +220,8 @@ func getFanInFanOutTasks(namespace string) []*v1alpha1.Task {
 			tb.Step("write-data-task-1", "ubuntu", tb.Command("/bin/bash"),
 				tb.Args("-c", "echo something > /workspace/workspace/something"),
 			),
-		)), tb.Task("check-create-files-exists-2", namespace, tb.TaskSpec(
+		)),
+		tb.Task("check-create-files-exists-2", namespace, tb.TaskSpec(
 			tb.TaskInputs(inWorkspaceResource),
 			tb.TaskOutputs(outWorkspaceResource),
 			tb.Step("read-from-task-0", "ubuntu", tb.Command("/bin/bash"),
@@ -230,7 +230,8 @@ func getFanInFanOutTasks(namespace string) []*v1alpha1.Task {
 			tb.Step("write-data-task-1", "ubuntu", tb.Command("/bin/bash"),
 				tb.Args("-c", "echo else > /workspace/workspace/else"),
 			),
-		)), tb.Task("read-files", namespace, tb.TaskSpec(
+		)),
+		tb.Task("read-files", namespace, tb.TaskSpec(
 			tb.TaskInputs(tb.InputsResource("workspace", v1alpha1.PipelineResourceTypeGit,
 				tb.ResourceTargetPath("readingspace"),
 			)),
@@ -248,18 +249,21 @@ func getFanInFanOutTasks(namespace string) []*v1alpha1.Task {
 }
 
 func getFanInFanOutPipeline(suffix int, namespace string) *v1alpha1.Pipeline {
+	outGitResource := tb.PipelineTaskOutputResource("workspace", "git-repo")
+
 	return tb.Pipeline(getName(pipelineName, suffix), namespace, tb.PipelineSpec(
 		tb.PipelineDeclaredResource("git-repo", "git"),
 		tb.PipelineTask("create-file-kritis", "create-file",
-			tb.PipelineTaskOutputResource("workspace", "git-repo"),
+			tb.PipelineTaskInputResource("workspace", "git-repo"),
+			outGitResource,
 		),
 		tb.PipelineTask("create-fan-out-1", "check-create-files-exists",
 			tb.PipelineTaskInputResource("workspace", "git-repo", tb.From("create-file-kritis")),
-			tb.PipelineTaskOutputResource("workspace", "git-repo"),
+			outGitResource,
 		),
 		tb.PipelineTask("create-fan-out-2", "check-create-files-exists-2",
 			tb.PipelineTaskInputResource("workspace", "git-repo", tb.From("create-file-kritis")),
-			tb.PipelineTaskOutputResource("workspace", "git-repo"),
+			outGitResource,
 		),
 		tb.PipelineTask("check-fan-in", "read-files",
 			tb.PipelineTaskInputResource("workspace", "git-repo", tb.From("create-fan-out-2", "create-fan-out-1")),
@@ -289,10 +293,10 @@ func getPipelineRunServiceAccount(suffix int, namespace string) *corev1.ServiceA
 	}
 }
 func getFanInFanOutPipelineRun(suffix int, namespace string) *v1alpha1.PipelineRun {
-	return tb.PipelineRun(getName(pipelineRunName, suffix), namespace, tb.PipelineRunSpec(
-		getName(pipelineName, suffix),
-		tb.PipelineRunResourceBinding("git-repo", tb.PipelineResourceBindingRef("kritis-resource-git")),
-	))
+	return tb.PipelineRun(getName(pipelineRunName, suffix), namespace,
+		tb.PipelineRunSpec(getName(pipelineName, suffix),
+			tb.PipelineRunResourceBinding("git-repo", tb.PipelineResourceBindingRef("kritis-resource-git")),
+		))
 }
 
 func getPipelineRunSecret(suffix int, namespace string) *corev1.Secret {