tenfourfox/testing/mochitest
..
BrowserTestUtils
chrome
dynamic
manifests
MochiKit
pywebsocket
ssltunnel
static
tests
b2g_start_script.js
bisection.py
browser-harness.xul
browser-test-overlay.xul
browser-test.js
chrome-harness.js
chunkifyTests.js
gen_template.pl
harness.xul
install.rdf
jar.mn
jetpack-addon-harness.js
jetpack-addon-overlay.xul
jetpack-package-harness.js
jetpack-package-overlay.xul
leaks.py
mach_commands.py
mach_test_package_commands.py
Makefile.in
manifest.webapp
manifestLibrary.js
mochitest_options.py
mochitest-e10s-utils.js
moz.build
nested_setup.js
pywebsocket_wrapper.py
README.txt
redirect.html
runrobocop.py
runtests.py
runtestsb2g.py
runtestsremote.py
server.js
shutdown-leaks-collector.js
ShutdownLeaksCollector.jsm

See https://developer.mozilla.org/en/docs/Mochitest for detailed information on running and writing mochitests.