Added rust_wasm_bindgen_test rule

[UebelAndre]

This change adds a new rule rust_wasm_bindgen_test for running tests in a headless browser.

Currently only chrome and firefox are supported browsers. The browser can be selected using the following flag.

--@rules_rust_wasm_bindgen//:test_browser={BROWSER}

[UebelAndre]

This is really frustrating but I cannot for the life of me figure out why chrome doesn't work.

I believe the actual failure is

[1741451642.254][INFO]: [e873c799d7d436738e4d96b0edc0bdce] RESPONSE InitSession ERROR session not created: probably user data directory is already in use, please specify a unique value for --user-data-dir argument, or don't use --user-data-dir

I've tried not setting --user-data-dir and it still presents this issue but the logs then reference a different directory generated in the TMPDIR environment variable location.

Full log:
https://buildkite.com/bazel/rules-rust-rustlang/builds/14294#0195769a-560d-4337-9b93-10baf5cfc21e

exec ${PAGER:-/usr/bin/less} "$0" || exit 1
Executing tests from //test:hello_world_bundler_wasm_bindgen_test
-----------------------------------------------------------------------------
Executing bindgen...                              
                                                  
Running headless tests in Chrome on `http://127.0.0.1:45965/`
Try find `webdriver.json` for configure browser's capabilities:
Ok
Starting new webdriver session...                 
Visiting http://127.0.0.1:38527...                
                                                  
driver status: signal: 9 (SIGKILL)
driver stdout:
    Starting ChromeDriver 136.0.7055.0 (c9f0c043062618e6fefb32dea24968ac6836536a-refs/branch-heads/7055@{#1}) on port 45965
    Only local connections are allowed.
    Please see https://chromedriver.chromium.org/security-considerations for suggestions on keeping ChromeDriver safe.
    ChromeDriver was started successfully on port 45965.

driver stderr:
    [1741451641.986][INFO]: [e873c799d7d436738e4d96b0edc0bdce] COMMAND InitSession {
       "desiredCapabilities": {
          "goog:chromeOptions": {
             "args": [ "user-data-dir=/var/lib/buildkite-agent/.cache/bazel/_bazel_buildkite-agent/44886e0696fee5410020d9bd8d8f80cb/sandbox/linux-sandbox/318/execroot/_main/bazel-out/k8-fastbuild-ST-5ff9f0c5ea46/testlogs/test/hello_world_bundler_wasm_bindgen_test/test.outputs/user_data_dir", "headless", "disable-dev-shm-usage", "no-sandbox" ],
             "binary": "/var/lib/buildkite-agent/.cache/bazel/_bazel_buildkite-agent/44886e0696fee5410020d9bd8d8f80cb/sandbox/linux-sandbox/318/execroot/_main/bazel-out/k8-fastbuild-ST-5ff9f0c5ea46/bin/test/hello_world_bundler_wasm_bindgen_test.runfiles/_main~rust_ext~chrome_linux64/chrome"
          },
          "moz:firefoxOptions": {
             "args": [  ],
             "prefs": {
             }
          }
       },
       "requiredCapabilities": {
       }
    }
    [1741451641.986][INFO]: Populating Preferences file: {
       "alternate_error_pages": {
          "enabled": false
       },
       "autofill": {
          "enabled": false
       },
       "browser": {
          "check_default_browser": false
       },
       "distribution": {
          "import_bookmarks": false,
          "import_history": false,
          "import_search_engine": false,
          "make_chrome_default_for_user": false,
          "skip_first_run_ui": true
       },
       "dns_prefetching": {
          "enabled": false
       },
       "profile": {
          "content_settings": {
             "pattern_pairs": {
                "https://*,*": {
                   "media-stream": {
                      "audio": "Default",
                      "video": "Default"
                   }
                }
             }
          },
          "default_content_setting_values": {
             "geolocation": 1
          },
          "default_content_settings": {
             "geolocation": 1,
             "mouselock": 1,
             "notifications": 1,
             "popups": 1,
             "ppapi-broker": 1
          },
          "password_manager_enabled": false
       },
       "safebrowsing": {
          "enabled": false
       },
       "search": {
          "suggest_enabled": false
       },
       "translate": {
          "enabled": false
       }
    }
    [1741451641.987][INFO]: Populating Local State file: {
       "background_mode": {
          "enabled": false
       },
       "ssl": {
          "rev_checking": {
             "enabled": false
          }
       }
    }
    [1741451641.987][INFO]: ChromeDriver supports communication with Chrome via pipes. This is more reliable and more secure.
    [1741451641.987][INFO]: Use the --remote-debugging-pipe Chrome switch instead of the default --remote-debugging-port to enable this communication mode.
    [1741451641.987][INFO]: Launching chrome: /var/lib/buildkite-agent/.cache/bazel/_bazel_buildkite-agent/44886e0696fee5410020d9bd8d8f80cb/sandbox/linux-sandbox/318/execroot/_main/bazel-out/k8-fastbuild-ST-5ff9f0c5ea46/bin/test/hello_world_bundler_wasm_bindgen_test.runfiles/_main~rust_ext~chrome_linux64/chrome --allow-pre-commit-input --disable-background-networking --disable-client-side-phishing-detection --disable-default-apps --disable-dev-shm-usage --disable-hang-monitor --disable-popup-blocking --disable-prompt-on-repost --disable-sync --enable-automation --enable-logging --headless --log-level=0 --no-first-run --no-sandbox --no-service-autorun --password-store=basic --remote-debugging-port=0 --test-type=webdriver --use-mock-keychain --user-data-dir=/var/lib/buildkite-agent/.cache/bazel/_bazel_buildkite-agent/44886e0696fee5410020d9bd8d8f80cb/sandbox/linux-sandbox/318/execroot/_main/bazel-out/k8-fastbuild-ST-5ff9f0c5ea46/testlogs/test/hello_world_bundler_wasm_bindgen_test/test.outputs/user_data_dir
    [0308/163402.035000:ERROR:third_party/crashpad/crashpad/util/file/file_io_posix.cc:145] open /sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq: No such file or directory (2)
    [0308/163402.035048:ERROR:third_party/crashpad/crashpad/util/file/file_io_posix.cc:145] open /sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq: No such file or directory (2)
    [1741451642.254][INFO]: [e873c799d7d436738e4d96b0edc0bdce] RESPONSE InitSession ERROR session not created: probably user data directory is already in use, please specify a unique value for --user-data-dir argument, or don't use --user-data-dir
    [1741451642.254][DEBUG]: Log type 'driver' lost 0 entries on destruction
    [1741451642.254][DEBUG]: Log type 'browser' lost 0 entries on destruction

                                                  
Error: http://127.0.0.1:45965/session/e873c799d7d436738e4d96b0edc0bdce/url: status code 404

[illicitonion]

Exciting! I will try to poke at the chromedriver stuff at some point... Definitely seems weird - the directories should be per-action unique because of the sandbox...