web-component-tester: Support headless mode
This adds support for running chrome in headless mode.
Support for running firefox in headless mode should work but currently
doesn't.
Moreover, i've added browser option handling to wct [1].
[1] https://github.com/Polymer/wct-local/commit/b8388d1a8d3fa907a205dc1763524a13b017e780
Bug: Issue 8023
Change-Id: I47cd9cd69fc78739219223c74d7b2edf2f97d6c7
diff --git a/polygerrit-ui/README.md b/polygerrit-ui/README.md
index d444f79..c2b0842 100644
--- a/polygerrit-ui/README.md
+++ b/polygerrit-ui/README.md
@@ -126,6 +126,17 @@
Then visit http://localhost:8081/elements/foo/bar_test.html
+To run Chrome tests in headless mode:
+
+```sh
+WCT_HEADLESS_MODE=1 ./polygerrit-ui/app/run_test.sh
+```
+
+Toolchain requirements for headless mode:
+
+* Chrome: 59+
+* web-component-tester: v6.5.0+
+
## Style guide
We follow the [Google JavaScript Style Guide](https://google.github.io/styleguide/javascriptguide.xml)
diff --git a/polygerrit-ui/app/embed_test.sh b/polygerrit-ui/app/embed_test.sh
index adcc653..d482796 100755
--- a/polygerrit-ui/app/embed_test.sh
+++ b/polygerrit-ui/app/embed_test.sh
@@ -14,6 +14,15 @@
cp $index $t/test/
cp $tests $t/test/
+if [ "${WCT_HEADLESS_MODE:-0}" != "0" ]; then
+ CHROME_OPTIONS=[\'start-maximized\',\'headless\',\'disable-gpu\',\'no-sandbox\']
+ # TODO(paladox): Fix Firefox support for headless mode
+ FIREFOX_OPTIONS=[\'\']
+else
+ CHROME_OPTIONS=[\'start-maximized\']
+ FIREFOX_OPTIONS=[\'\']
+fi
+
# For some reason wct tries to install selenium into its node_modules
# directory on first run. If you've installed into /usr/local and
# aren't running wct as root, you're screwed. Turning this option off
@@ -33,7 +42,11 @@
},
'plugins': {
'local': {
- 'skipSeleniumInstall': true
+ 'skipSeleniumInstall': true,
+ 'browserOptions': {
+ 'chrome': ${CHROME_OPTIONS},
+ 'firefox': ${FIREFOX_OPTIONS}
+ }
},
'sauce': {
'disabled': true,
diff --git a/polygerrit-ui/app/run_test.sh b/polygerrit-ui/app/run_test.sh
index 0edf41c..df210b8 100755
--- a/polygerrit-ui/app/run_test.sh
+++ b/polygerrit-ui/app/run_test.sh
@@ -20,6 +20,7 @@
--test_env="WCT_ARGS=${WCT_ARGS}" \
--test_env="NPM=${npm_bin}" \
--test_env="DISPLAY=${DISPLAY}" \
+ --test_env="WCT_HEADLESS_MODE=${WCT_HEADLESS_MODE}" \
"$@" \
//polygerrit-ui/app:embed_test \
//polygerrit-ui/app:wct_test
diff --git a/polygerrit-ui/app/wct_test.sh b/polygerrit-ui/app/wct_test.sh
index e81adfb..a8394cd 100755
--- a/polygerrit-ui/app/wct_test.sh
+++ b/polygerrit-ui/app/wct_test.sh
@@ -12,6 +12,15 @@
mkdir -p $t/test
cp $TEST_SRCDIR/gerrit/polygerrit-ui/app/test/index.html $t/test/
+if [ "${WCT_HEADLESS_MODE:-0}" != "0" ]; then
+ CHROME_OPTIONS=[\'start-maximized\',\'headless\',\'disable-gpu\',\'no-sandbox\']
+ # TODO(paladox): Fix Firefox support for headless mode
+ FIREFOX_OPTIONS=[\'\']
+else
+ CHROME_OPTIONS=[\'start-maximized\']
+ FIREFOX_OPTIONS=[\'\']
+fi
+
# For some reason wct tries to install selenium into its node_modules
# directory on first run. If you've installed into /usr/local and
# aren't running wct as root, you're screwed. Turning this option off
@@ -31,7 +40,11 @@
},
'plugins': {
'local': {
- 'skipSeleniumInstall': true
+ 'skipSeleniumInstall': true,
+ 'browserOptions': {
+ 'chrome': ${CHROME_OPTIONS},
+ 'firefox': ${FIREFOX_OPTIONS}
+ }
},
'sauce': {
'disabled': true,
