From 8e2bb01e5350e0b4716507f78e9721e45c5462ab Mon Sep 17 00:00:00 2001
From: Colin Saliceti <c.saliceti@gmail.com>
Date: Tue, 25 Apr 2017 14:06:43 +0100
Subject: [PATCH] Acceptance test for large HTTP responses

Check that requests don't hang when the HTTP response is large (up to
200kB). This should prevent regressions of the MTU problem described in the
preceding commit.
---
 concourse/pipelines/create-cloudfoundry.yml   |  4 ++
 concourse/pipelines/failure-testing.yml       |  5 +++
 .../tasks/custom-acceptance-tests-run.yml     |  1 +
 .../src/acceptance/response_size_test.go      | 42 +++++++++++++++++++
 4 files changed, 52 insertions(+)
 create mode 100644 platform-tests/src/acceptance/response_size_test.go

diff --git a/concourse/pipelines/create-cloudfoundry.yml b/concourse/pipelines/create-cloudfoundry.yml
index 573050ca27..c2e46780a8 100644
--- a/concourse/pipelines/create-cloudfoundry.yml
+++ b/concourse/pipelines/create-cloudfoundry.yml
@@ -2049,6 +2049,10 @@ jobs:
           - get: bosh-CA
           - get: cf-secrets
             passed: ['cf-deploy']
+          - get: cf-release
+            params:
+              submodules:
+                - src/github.com/cloudfoundry/cf-acceptance-tests
 
       - do:
         - task: create-temp-user
diff --git a/concourse/pipelines/failure-testing.yml b/concourse/pipelines/failure-testing.yml
index 1632b803da..79a290827e 100644
--- a/concourse/pipelines/failure-testing.yml
+++ b/concourse/pipelines/failure-testing.yml
@@ -397,6 +397,11 @@ jobs:
           - get: pipeline-trigger
             passed: ['init']
             trigger: true
+          - get: cf-release
+            params:
+              submodules:
+                - src/github.com/cloudfoundry/cf-acceptance-tests
+
       - task: get-instance-id
         file: paas-cf/concourse/tasks/get-instance-id.yml
         params:
diff --git a/concourse/tasks/custom-acceptance-tests-run.yml b/concourse/tasks/custom-acceptance-tests-run.yml
index 81a3f7e547..6737eeaf56 100644
--- a/concourse/tasks/custom-acceptance-tests-run.yml
+++ b/concourse/tasks/custom-acceptance-tests-run.yml
@@ -8,6 +8,7 @@ inputs:
   - name: paas-cf
   - name: test-config
   - name: bosh-CA
+  - name: cf-release
 outputs:
   - name: artifacts
 run:
diff --git a/platform-tests/src/acceptance/response_size_test.go b/platform-tests/src/acceptance/response_size_test.go
new file mode 100644
index 0000000000..0eb857f241
--- /dev/null
+++ b/platform-tests/src/acceptance/response_size_test.go
@@ -0,0 +1,42 @@
+package acceptance_test
+
+import (
+	"fmt"
+	"time"
+
+	. "github.com/onsi/ginkgo"
+	. "github.com/onsi/gomega"
+	. "github.com/onsi/gomega/gexec"
+
+	"github.com/cloudfoundry-incubator/cf-test-helpers/cf"
+	"github.com/cloudfoundry-incubator/cf-test-helpers/generator"
+	"github.com/cloudfoundry-incubator/cf-test-helpers/helpers"
+)
+
+var _ = Describe("Apps response size", func() {
+	var appName string
+
+	BeforeEach(func() {
+		appName = generator.PrefixedRandomName("CATS-APP-DORA-")
+		Expect(cf.Cf(
+			"push", appName,
+			"-b", config.RubyBuildpackName,
+			"-p", "../../../../cf-release/src/github.com/cloudfoundry/cf-acceptance-tests/assets/dora",
+			"-d", config.AppsDomain,
+			"-i", "1",
+			"-m", "256M",
+		).Wait(CF_PUSH_TIMEOUT)).To(Exit(0))
+	})
+
+	It("should serve request and response bodies of increasing sizes", func() {
+		for responsekB := 1; responsekB <= 200; responsekB += 10 {
+			By(fmt.Sprintf("response size of %d kB", responsekB))
+			response := helpers.CurlAppWithTimeout(
+				appName,
+				fmt.Sprintf("/largetext/%d", responsekB),
+				5*time.Second,
+			)
+			Expect(response).To(HaveLen(responsekB * int(KILOBYTE)))
+		}
+	})
+})