added selenium test files

Dockerfile-selenium

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+FROM selenium/standalone-firefox
+USER root
+
+RUN apt-get -y update
+RUN apt-get -y install python3-pip
+USER seluser
+RUN python3 -m pip install helium --user
+WORKDIR /home/seluser
+ADD tests/* /home/seluser/
+
+ENTRYPOINT [ "python3", "tests.py" ]

docker-compose-tests.yml

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+services:
+  rimgu:
+    build: .
+    network_mode: host
+  selenium:
+    depends_on:
+      - "rimgu"
+    build:
+      dockerfile: ./Dockerfile-selenium
+      context: .
+    network_mode: host

run-tests.sh

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+#!/bin/bash
+sudo docker-compose -f docker-compose-tests.yml up --abort-on-container-exit --build
+EXIT_CODE=$?
+sudo docker-compose -f docker-compose-tests.yml down
+exit "$EXIT_CODE"

tests/find_video_for_cMeqLga.js

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+// Script is executed by selenium because the css selector is bugged in helium/selenium
+// Check for the meme video's element presence then write to page so helium
+// knows it is there
+let vid = document.querySelectorAll('source[src="/InQKYvf.mp4"]')
+
+if (vid.length){
+    let p = document.createElement("p")
+    p.innerText = "video exists"
+
+    document.body.appendChild(p)
+
+}

tests/tests.py

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+import time
+import helium
+
+gallery_id = "cMeqLga"
+f = helium.start_firefox(f"http://127.0.0.1:8080/gallery/{gallery_id}", headless=True)
+
+assert helium.Text("2021-10-13T15:25:25Z").exists()
+
+# Check for meme video by running a js to create a p element if it exists
+with open(f"find_video_for_{gallery_id}.js", "r") as script:
+    f.execute_script(script.read())
+
+
+assert helium.Text("video exists").exists()