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-rw-r--r--devtools/server/tests/xpcshell/test_breakpoint-12.js93
1 files changed, 93 insertions, 0 deletions
diff --git a/devtools/server/tests/xpcshell/test_breakpoint-12.js b/devtools/server/tests/xpcshell/test_breakpoint-12.js
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+++ b/devtools/server/tests/xpcshell/test_breakpoint-12.js
@@ -0,0 +1,93 @@
+/* Any copyright is dedicated to the Public Domain.
+ http://creativecommons.org/publicdomain/zero/1.0/ */
+/* eslint-disable no-shadow, max-nested-callbacks */
+
+"use strict";
+
+/**
+ * Make sure that setting a breakpoint twice in a line without bytecodes works
+ * as expected.
+ */
+
+const NUM_BREAKPOINTS = 10;
+var gBpActor;
+var gCount;
+
+add_task(
+ threadFrontTest(({ threadFront, debuggee }) => {
+ return new Promise(resolve => {
+ threadFront.once("paused", async function (packet) {
+ const source = await getSourceById(
+ threadFront,
+ packet.frame.where.actor
+ );
+ const location = { line: debuggee.line0 + 3 };
+
+ source.setBreakpoint(location).then(function ([response, bpClient]) {
+ // Check that the breakpoint has properly skipped forward one line.
+ Assert.equal(response.actualLocation.source.actor, source.actor);
+ Assert.equal(response.actualLocation.line, location.line + 1);
+ gBpActor = response.actor;
+
+ // Set more breakpoints at the same location.
+ set_breakpoints(source, location);
+ });
+ });
+
+ /* eslint-disable no-multi-spaces */
+ Cu.evalInSandbox(
+ "var line0 = Error().lineNumber;\n" +
+ "function foo() {\n" + // line0 + 1
+ " this.a = 1;\n" + // line0 + 2
+ " // A comment.\n" + // line0 + 3
+ " this.b = 2;\n" + // line0 + 4
+ "}\n" + // line0 + 5
+ "debugger;\n" + // line0 + 6
+ "foo();\n", // line0 + 7
+ debuggee
+ );
+ /* eslint-enable no-multi-spaces */
+
+ // Set many breakpoints at the same location.
+ function set_breakpoints(source, location) {
+ Assert.notEqual(gCount, NUM_BREAKPOINTS);
+ source.setBreakpoint(location).then(function ([response, bpClient]) {
+ // Check that the breakpoint has properly skipped forward one line.
+ Assert.equal(response.actualLocation.source.actor, source.actor);
+ Assert.equal(response.actualLocation.line, location.line + 1);
+ // Check that the same breakpoint actor was returned.
+ Assert.equal(response.actor, gBpActor);
+
+ if (++gCount < NUM_BREAKPOINTS) {
+ set_breakpoints(source, location);
+ return;
+ }
+
+ // After setting all the breakpoints, check that only one has effectively
+ // remained.
+ threadFront.once("paused", function (packet) {
+ // Check the return value.
+ Assert.equal(packet.frame.where.actor, source.actor);
+ Assert.equal(packet.frame.where.line, location.line + 1);
+ Assert.equal(packet.why.type, "breakpoint");
+ Assert.equal(packet.why.actors[0], bpClient.actor);
+ // Check that the breakpoint worked.
+ Assert.equal(debuggee.a, 1);
+ Assert.equal(debuggee.b, undefined);
+
+ threadFront.once("paused", function (packet) {
+ // We don't expect any more pauses after the breakpoint was hit once.
+ Assert.ok(false);
+ });
+ threadFront.resume().then(function () {
+ // Give any remaining breakpoints a chance to trigger.
+ do_timeout(1000, resolve);
+ });
+ });
+ // Continue until the breakpoint is hit.
+ threadFront.resume();
+ });
+ }
+ });
+ })
+);