# Deploying content_shell and running web_tests on Fuchsia. General instruction on running and debugging web_tests can be found [here](../testing/web_tests.md). Currently, only [a small subset of web tests](../../third_party/blink/web_tests/SmokeTests) can be run on Fuchsia. Build the target `blink_tests` first before running any of the commands below: ## Hermetic emulation The test script brings up an emulator, runs the tests on it, and shuts the emulator down when finished. ```bash $ third_party/blink/tools/run_web_tests.py -t --platform=fuchsia ``` ## Run on an physical device. Note the `--fuchsia-host-ip` flag, which is the ip address of the test host that the Fuchsia device uses to establish a connection. ```bash $ third_party/blink/tools/run_web_tests.py -t --platform=fuchsia --device=device --fuchsia-target-cpu= --fuchsia-out-dir=/path/to/fuchsia/outdir --fuchsia-host-ip=test.host.ip.address ```