1 files changed, 80 insertions, 0 deletions
diff --git a/devtools/server/tests/xpcshell/test_breakpoint-25.js b/devtools/server/tests/xpcshell/test_breakpoint-25.js
new file mode 100644
index 0000000000..3859115569
--- /dev/null
+++ b/devtools/server/tests/xpcshell/test_breakpoint-25.js
@@ -0,0 +1,80 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+/* eslint-disable no-shadow */
+
+"use strict";
+
+/**
+ * Ensure that the debugger resume page execution when the connection drops
+ * and when the target is detached.
+ */
+
+add_task(
+  threadFrontTest(({ threadFront, debuggee, targetFront }) => {
+    return new Promise(resolve => {
+      (async () => {
+        await executeOnNextTickAndWaitForPause(evalCode, threadFront);
+
+        ok(true, "The page is paused");
+        ok(!debuggee.foo, "foo is still false after we hit the breakpoint");
+
+        await targetFront.detach();
+
+        // Closing the connection will force the thread actor to resume page
+        // execution
+        ok(debuggee.foo, "foo is true after target's detach request");
+
+        resolve();
+      })();
+
+      function evalCode() {
+        /* eslint-disable */
+        Cu.evalInSandbox("var foo = false;\n", debuggee);
+        /* eslint-enable */
+        ok(!debuggee.foo, "foo is false at startup");
+
+        /* eslint-disable */
+        Cu.evalInSandbox("debugger;\n" + "foo = true;\n", debuggee);
+        /* eslint-enable */
+      }
+    });
+  })
+);
+
+add_task(
+  threadFrontTest(({ threadFront, client, debuggee }) => {
+    return new Promise(resolve => {
+      (async () => {
+        await executeOnNextTickAndWaitForPause(evalCode, threadFront);
+
+        ok(true, "The page is paused");
+        ok(!debuggee.foo, "foo is still false after we hit the breakpoint");
+
+        await client.close();
+
+        // `close` will force the destruction of the thread actor, which,
+        // will resume the page execution. But all of that seems to be
+        // synchronous and we have to spin the event loop in order to ensure
+        // having the content javascript to execute the resumed code.
+        await new Promise(executeSoon);
+
+        // Closing the connection will force the thread actor to resume page
+        // execution
+        ok(debuggee.foo, "foo is true after client close");
+        executeSoon(resolve);
+        dump("resolved\n");
+      })();
+
+      function evalCode() {
+        /* eslint-disable */
+        Cu.evalInSandbox("var foo = false;\n", debuggee);
+        /* eslint-enable */
+        ok(!debuggee.foo, "foo is false at startup");
+
+        /* eslint-disable */
+        Cu.evalInSandbox("debugger;\n" + "foo = true;\n", debuggee);
+        /* eslint-enable */
+      }
+    });
+  })
+);