1 files changed, 75 insertions, 0 deletions
diff --git a/devtools/server/tests/xpcshell/test_longstringgrips-01.js b/devtools/server/tests/xpcshell/test_longstringgrips-01.js
new file mode 100644
index 0000000000..ac0b228c17
--- /dev/null
+++ b/devtools/server/tests/xpcshell/test_longstringgrips-01.js
@@ -0,0 +1,75 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+"use strict";
+
+var gDebuggee;
+var gClient;
+var gThreadFront;
+
+add_task(
+  threadFrontTest(
+    async ({ threadFront, debuggee, client }) => {
+      gThreadFront = threadFront;
+      gDebuggee = debuggee;
+      gClient = client;
+      test_longstring_grip();
+    },
+    { waitForFinish: true }
+  )
+);
+
+function test_longstring_grip() {
+  const longString =
+    "All I want is to be a monkey of moderate intelligence who" +
+    " wears a suit... that's why I'm transferring to business school! Maybe I" +
+    " love you so much, I love you no matter who you are pretending to be." +
+    " Enough about your promiscuous mother, Hermes! We have bigger problems." +
+    " For example, if you killed your grandfather, you'd cease to exist! What" +
+    " kind of a father would I be if I said no? Yep, I remember. They came in" +
+    " last at the Olympics, then retired to promote alcoholic beverages! And" +
+    " remember, don't do anything that affects anything, unless it turns out" +
+    " you were supposed to, in which case, for the love of God, don't not do" +
+    " it!";
+
+  DevToolsServer.LONG_STRING_LENGTH = 200;
+
+  gThreadFront.once("paused", function (packet) {
+    const args = packet.frame.arguments;
+    Assert.equal(args.length, 1);
+    const grip = args[0];
+
+    try {
+      Assert.equal(grip.type, "longString");
+      Assert.equal(grip.length, longString.length);
+      Assert.equal(
+        grip.initial,
+        longString.substr(0, DevToolsServer.LONG_STRING_INITIAL_LENGTH)
+      );
+
+      const longStringFront = createLongStringFront(gClient, grip);
+      longStringFront.substring(22, 28).then(function (response) {
+        try {
+          Assert.equal(response, "monkey");
+        } finally {
+          gThreadFront.resume().then(function () {
+            finishClient(gClient);
+          });
+        }
+      });
+    } catch (error) {
+      gThreadFront.resume().then(function () {
+        finishClient(gClient);
+        do_throw(error);
+      });
+    }
+  });
+
+  gDebuggee.eval(
+    function stopMe(arg1) {
+      debugger;
+    }.toString()
+  );
+
+  gDebuggee.eval('stopMe("' + longString + '")');
+}