1 files changed, 67 insertions, 0 deletions
diff --git a/devtools/client/webconsole/test/browser/browser_jsterm_commands.js b/devtools/client/webconsole/test/browser/browser_jsterm_commands.js
new file mode 100644
index 0000000000..7ff80228fe
--- /dev/null
+++ b/devtools/client/webconsole/test/browser/browser_jsterm_commands.js
@@ -0,0 +1,67 @@
+"use strict";
+
+const TEST_URI = "data:text/html,test-page";
+
+const {
+  HELP_URL,
+} = require("resource://devtools/client/webconsole/constants.js");
+
+add_task(async function () {
+  const hud = await openNewTabAndConsole(TEST_URI);
+
+  info("Trigger the :help command");
+  // Hook the browser method in order to prevent the URL from opening
+  // as mochitest forbids opening remote URLs.
+  const onUrlOpened = new Promise(resolve => {
+    const originalMethod = window.openWebLinkIn;
+    window.openWebLinkIn = url => {
+      window.openWebLinkIn = originalMethod;
+      resolve(url);
+    };
+  });
+  execute(hud, ":help");
+  info("Wait for the help URL to be requested to open");
+  const url = await onUrlOpened;
+  is(url, HELP_URL, "Expected url was opened when executing :help");
+
+  info("Execute only ':'");
+  await executeAndWaitForMessageByType(
+    hud,
+    ":",
+    "Missing a command name after ':'",
+    ".console-api.error"
+  );
+
+  // Any space after a `:`  would lead to the same exception
+  info("Execute only ': '");
+  await executeAndWaitForMessageByType(
+    hud,
+    ": ",
+    "Missing a command name after ':'",
+    ".console-api.error"
+  );
+
+  info("Execute only ': foo'");
+  await executeAndWaitForMessageByType(
+    hud,
+    ": foo",
+    "Missing a command name after ':'",
+    ".console-api.error"
+  );
+
+  info("Execute unsupported command ':bar'");
+  await executeAndWaitForMessageByType(
+    hud,
+    ":bar",
+    "bar' is not a valid command",
+    ".console-api.error"
+  );
+
+  info("Execute string with two commands");
+  await executeAndWaitForMessageByType(
+    hud,
+    ":help :help",
+    "Executing multiple commands in one evaluation is not supported",
+    ".console-api.error"
+  );
+});