Add selenium based unit tests

.build.yml

@@ -23,6 +23,7 @@ packages:
   - python3
   - python-virtualenv
   - git
+  - xorg-server-xvfb
 sources:
   - https://git.sr.ht/~carstengrohmann/OOMAnalyser
 shell: null
@@ -37,6 +38,10 @@ tasks:
       # disable optimizations to speedup build process
       sed -i '/enable-optimizations/d' PKGBUILD
       makepkg --noconfirm -si --skippgpcheck
+      cd ..
+      git clone https://aur.archlinux.org/chromedriver.git
+      cd chromedriver
+      makepkg --noconfirm -si --skippgpcheck
   - setup_venv: |
       cd OOMAnalyser
       make venv
@@ -44,6 +49,9 @@ tasks:
       cd OOMAnalyser
       make build
       ls -l OOMAnalyser.html OOMAnalyser.js
+  - webtest: |
+      cd OOMAnalyser
+      make test
 triggers:
   - action: email
     condition: failure

Makefile

@@ -72,3 +72,8 @@ build: venv
 #+ Serve the current directory on http://127.0.0.1:8080
 websrv:
 	$(PYTHON3_BIN) -m http.server 8080 --bind 127.0.0.1
+
+#+ Run Selenium based web tests
+test: build
+	. $(VIRTUAL_ENV_DIR)/bin/activate
+	DISPLAY=:1 xvfb-run python ./test.py

requirements.txt

@@ -1 +1,2 @@
 Transcrypt == 3.7.16
+selenium

test.py

@@ -0,0 +1,105 @@
+# Unit tests for OOM Analyser
+#
+# This software is covered by the MIT License.
+#
+# Copyright (c) 2021 Carsten Grohmann <mail@carsten-grohmann.de>
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated
+# documentation files (the "Software"), to deal in the Software without restriction, including without limitation the
+# rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit
+# persons to whom the Software is furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in all copies or substantial portions of the
+# Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
+# WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+# COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+# OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+import http.server
+import os
+import socketserver
+import threading
+import unittest
+from selenium import webdriver
+
+
+class MyRequestHandler(http.server.SimpleHTTPRequestHandler):
+
+    def __init__(self, request, client_address, server, directory=None):
+        self.directory = os.getcwd()
+        super().__init__(request, client_address, server)
+
+    # suppress all HTTP request messages
+    def log_message(self, format, *args):
+        # super().log_message(format, *args)
+        pass
+
+
+class ThreadedTCPServer(socketserver.ThreadingMixIn, socketserver.TCPServer):
+    pass
+
+
+class TestHTTPOOMAnalyser(unittest.TestCase):
+    """Test OOM web page"""
+
+    @classmethod
+    def setUpClass(cls):
+        ThreadedTCPServer.allow_reuse_address = True
+        cls.httpd = ThreadedTCPServer(('127.0.0.1', 8000), MyRequestHandler)
+        # cls.httpd.allow_reuse_address = True
+        server_thread = threading.Thread(target=cls.httpd.serve_forever, args=(0.1,))
+        server_thread.daemon = True
+        server_thread.start()
+
+    @classmethod
+    def tearDownClass(cls):
+        cls.httpd.shutdown()
+        cls.httpd.server_close()
+
+    def setUp(self):
+        self.driver = webdriver.Chrome()
+        self.driver.get("http://127.0.0.1:8000/OOMAnalyser.html")
+
+    def tearDown(self):
+        self.driver.close()
+
+    def test_001_load_page(self):
+        """Test if the page is loading"""
+        assert "OOM Analyser" in self.driver.title
+
+    def test_002_load_js(self):
+        """Test if JS is loaded"""
+        elem = self.driver.find_element_by_id("version")
+        self.assertIsNotNone(elem.text, "Version statement not set - JS not loaded")
+
+    def test_003_insert_and_analyse_example(self):
+        """Test loading and analysing example"""
+        textarea = self.driver.find_element_by_id('textarea_oom')
+        self.assertEqual(textarea.get_attribute('value'), '', 'Empty textarea expected')
+        insert_example = self.driver.find_element_by_xpath('//button[text()="Insert example"]')
+        insert_example.click()
+        self.assertNotEqual(textarea.get_attribute('value'), '', 'Missing OOM text in textarea')
+
+        h3_summary = self.driver.find_element_by_xpath('//h3[text()="Summary"]')
+        self.assertFalse(h3_summary.is_displayed(), "Analysis details incl. <h3>Summary</h3> should be not displayed")
+
+        analyse = self.driver.find_element_by_xpath('//button[text()="Analyse"]')
+        analyse.click()
+
+        self.assertTrue(h3_summary.is_displayed(), "Analysis details incl. <h3>Summary</h3> should be displayed")
+
+        trigger_proc_name = self.driver.find_element_by_class_name('trigger_proc_name')
+        self.assertEqual(trigger_proc_name.text, 'sed', 'Unexpected trigger process name')
+        trigger_proc_pid = self.driver.find_element_by_class_name('trigger_proc_pid')
+        self.assertEqual(trigger_proc_pid.text, '29481', 'Unexpected trigger process pid')
+
+        killed_proc_score = self.driver.find_element_by_class_name('killed_proc_score')
+        self.assertEqual(killed_proc_score.text, '651', 'Unexpected OOM score of killed process')
+
+
+if __name__ == "__main__":
+    # import logging, sys
+    # logging.basicConfig(stream=sys.stderr, level=logging.WARNING)
+    unittest.main(verbosity=2)