fix phantomjs

Author: andiwand

.github/workflows/test.yaml

@@ -17,4 +17,4 @@ jobs:
         python-version: "3.x"
     - run: pip install .
     - run: pip install pytest
-    - run: pytest
+    - run: pytest -vs

src/htmlcmp/html_render_diff.py

@@ -1,6 +1,7 @@
 #!/usr/bin/env python3
 # -*- coding: utf-8 -*-
 
+import shutil
 import sys
 import argparse
 import io
@@ -70,6 +71,8 @@ def get_browser(
         )
 
     if driver == "phantomjs":
+        if shutil.which("phantomjs") is None:
+            raise EnvironmentError("PhantomJS is not installed or not found in PATH")
         browser = webdriver.PhantomJS()
     elif driver == "firefox":
         options = webdriver.FirefoxOptions()

tests/test_html_render_diff.py

@@ -1,5 +1,6 @@
 import pytest
 from pathlib import Path
+import shutil
 
 from htmlcmp.html_render_diff import to_url, get_browser, html_render_diff
 
@@ -31,9 +32,10 @@ def test_get_browser():
     browser.quit()
 
     # Test with PhantomJS
-    browser = get_browser("phantomjs")
-    assert browser.name == "phantomjs"
-    browser.quit()
+    if shutil.which("phantomjs") is not None:
+        browser = get_browser("phantomjs")
+        assert browser.name == "phantomjs"
+        browser.quit()
 
 
 def test_html_render_diff():