1 files changed, 81 insertions, 0 deletions
diff --git a/devtools/server/tests/xpcshell/test_breakpoint-10.js b/devtools/server/tests/xpcshell/test_breakpoint-10.js
new file mode 100644
index 0000000000..fd114f173d
--- /dev/null
+++ b/devtools/server/tests/xpcshell/test_breakpoint-10.js
@@ -0,0 +1,81 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+"use strict";
+
+/**
+ * Check that setting a breakpoint in a line with multiple entry points
+ * triggers no matter which entry point we reach.
+ */
+
+add_task(
+  threadFrontTest(async ({ threadFront, client, debuggee }) => {
+    const packet = await executeOnNextTickAndWaitForPause(
+      () => evaluateTestCode(debuggee),
+      threadFront
+    );
+    const source = await getSourceById(threadFront, packet.frame.where.actor);
+    const location = {
+      sourceUrl: source.url,
+      line: debuggee.line0 + 3,
+      column: 5,
+    };
+
+    //Pause at debugger statement.
+    Assert.equal(packet.frame.where.line, debuggee.line0 + 1);
+    Assert.equal(packet.why.type, "debuggerStatement");
+
+    threadFront.setBreakpoint(location, {});
+    await client.waitForRequestsToSettle();
+
+    await resume(threadFront);
+
+    const packet2 = await waitForPause(threadFront);
+    // Check the return value.
+    Assert.equal(packet2.why.type, "breakpoint");
+    // Check that the breakpoint worked.
+    Assert.equal(debuggee.i, 0);
+    // Check pause location
+    Assert.equal(packet2.frame.where.line, debuggee.line0 + 3);
+    Assert.equal(packet2.frame.where.column, 5);
+
+    // Remove the breakpoint.
+    threadFront.removeBreakpoint(location);
+    await client.waitForRequestsToSettle();
+
+    const location2 = {
+      sourceUrl: source.url,
+      line: debuggee.line0 + 3,
+      column: 12,
+    };
+    threadFront.setBreakpoint(location2, {});
+    await client.waitForRequestsToSettle();
+
+    await resume(threadFront);
+    const packet3 = await waitForPause(threadFront);
+    // Check the return value.
+    Assert.equal(packet3.why.type, "breakpoint");
+    // Check that the breakpoint worked.
+    Assert.equal(debuggee.i, 1);
+    // Check execution location
+    Assert.equal(packet3.frame.where.line, debuggee.line0 + 3);
+    Assert.equal(packet3.frame.where.column, 12);
+
+    // Remove the breakpoint.
+    threadFront.removeBreakpoint(location2);
+    await client.waitForRequestsToSettle();
+
+    await resume(threadFront);
+  })
+);
+
+function evaluateTestCode(debuggee) {
+  // prettier-ignore
+  Cu.evalInSandbox("var line0 = Error().lineNumber;\n" +
+                   "debugger;\n" +                      // line0 + 1
+                   "var a, i = 0;\n" +                  // line0 + 2
+                   "for (i = 1; i <= 2; i++) {\n" +     // line0 + 3
+                   "  a = i;\n" +                       // line0 + 4
+                   "}\n",                               // line0 + 5
+                   debuggee);
+}