Pass --grep to mocha from the command line.

diff --git a/DEVELOP.md b/DEVELOP.md
index 7436326..9a13888 100644 (file)
--- a/DEVELOP.md
+++ b/DEVELOP.md
@@ -28,6 +28,12 @@ To iterate on a unit test, run the `watch` command above and open
 in your browser. You can use the Mocha UI to run just a single test or suite.
 Or you can change `it` to `it.only` to do run just one test in code.
 
+To run a single test from the command line, you can use:
+
+  npm run test -- --grep highlight-series-background
+
+(Note the extra `--`.)
+
 ### dygraphs style
 
 When making a change, please try to follow the style of the existing dygraphs code. This will make the review process go much more smoothly.

diff --git a/scripts/run-tests.sh b/scripts/run-tests.sh
index 4b1c77f..4bc0718 100755 (executable)
--- a/scripts/run-tests.sh
+++ b/scripts/run-tests.sh
@@ -18,4 +18,4 @@ trap finish EXIT
 sleep 1
 
 # Start the tests
-mocha-phantomjs http://localhost:8081/auto_tests/runner.html
+mocha-phantomjs http://localhost:8081/auto_tests/runner.html "$@"