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-rw-r--r--devtools/server/tests/xpcshell/test_breakpoint-01.js53
1 files changed, 53 insertions, 0 deletions
diff --git a/devtools/server/tests/xpcshell/test_breakpoint-01.js b/devtools/server/tests/xpcshell/test_breakpoint-01.js
new file mode 100644
index 0000000000..be46d97cfb
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+++ b/devtools/server/tests/xpcshell/test_breakpoint-01.js
@@ -0,0 +1,53 @@
+/* Any copyright is dedicated to the Public Domain.
+ http://creativecommons.org/publicdomain/zero/1.0/ */
+
+"use strict";
+
+/**
+ * Check basic breakpoint functionality.
+ */
+
+add_task(
+ threadFrontTest(async ({ threadFront, debuggee }) => {
+ info("Wait for the debugger statement to be hit");
+ const packet1 = await executeOnNextTickAndWaitForPause(
+ () => evaluateTestCode(debuggee),
+ threadFront
+ );
+ const source = await getSourceById(threadFront, packet1.frame.where.actor);
+ const location = { sourceUrl: source.url, line: debuggee.line0 + 3 };
+
+ threadFront.setBreakpoint(location, {});
+
+ const packet2 = await resumeAndWaitForPause(threadFront);
+
+ info("Paused at the breakpoint");
+ Assert.equal(packet2.frame.where.actor, source.actor);
+ Assert.equal(packet2.frame.where.line, location.line);
+ Assert.equal(packet2.why.type, "breakpoint");
+
+ info("Check that the breakpoint worked.");
+ Assert.equal(debuggee.a, 1);
+ Assert.equal(debuggee.b, undefined);
+
+ await threadFront.resume();
+ })
+);
+
+function evaluateTestCode(debuggee) {
+ /*
+ * Be sure to run debuggee code in its own HTML 'task', so that when we call
+ * the onDebuggerStatement hook, the test's own microtasks don't get suspended
+ * along with the debuggee's.
+ */
+ do_timeout(0, () => {
+ // prettier-ignore
+ Cu.evalInSandbox(
+ "var line0 = Error().lineNumber;\n" +
+ "debugger;\n" + // line0 + 1
+ "var a = 1;\n" + // line0 + 2
+ "var b = 2;\n", // line0 + 3
+ debuggee
+ );
+ });
+}