Add --fail-at-end integration tests

integration/tests_failed/fail_at_end.err

@@ -0,0 +1,14 @@
+error: Assert status code
+  --> tests_failed/fail_at_end.hurl:2:6
+   |
+ 2 | HTTP 400
+   |      ^^^ actual value is <200>
+   |
+
+error: Assert status code
+  --> tests_failed/fail_at_end.hurl:8:6
+   |
+ 8 | HTTP 400
+   |      ^^^ actual value is <200>
+   |
+

integration/tests_failed/fail_at_end.exit

@@ -0,0 +1 @@
+4

integration/tests_failed/fail_at_end.hurl

@@ -0,0 +1,9 @@
+GET http://localhost:8000/fail-at-end
+HTTP 400
+
+GET http://localhost:8000/fail-at-end
+HTTP 200
+
+GET http://localhost:8000/fail-at-end
+HTTP 400
+

integration/tests_failed/fail_at_end.ps1

@@ -0,0 +1,3 @@
+Set-StrictMode -Version latest
+$ErrorActionPreference = 'Stop'
+hurl --fail-at-end tests_failed/fail_at_end.hurl

integration/tests_failed/fail_at_end.py

@@ -0,0 +1,8 @@
+# coding=utf-8
+from app import app
+from flask import Response
+
+
+@app.route("/fail-at-end")
+def fail_at_end():
+    return Response("", status=200)

integration/tests_failed/fail_at_end.sh

@@ -0,0 +1,3 @@
+#!/bin/bash
+set -Eeuo pipefail
+hurl --fail-at-end tests_failed/fail_at_end.hurl