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-rw-r--r--devtools/server/tests/xpcshell/test_stepping-13.js39
1 files changed, 39 insertions, 0 deletions
diff --git a/devtools/server/tests/xpcshell/test_stepping-13.js b/devtools/server/tests/xpcshell/test_stepping-13.js
new file mode 100644
index 0000000000..cbdb78ce2d
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+++ b/devtools/server/tests/xpcshell/test_stepping-13.js
@@ -0,0 +1,39 @@
+/* Any copyright is dedicated to the Public Domain.
+ http://creativecommons.org/publicdomain/zero/1.0/ */
+
+"use strict";
+
+/*
+ * Check that is possible to step into both the inner and outer function
+ * calls.
+ */
+
+add_task(
+ threadFrontTest(async ({ commands, threadFront }) => {
+ dumpn("Evaluating test code and waiting for first debugger statement");
+
+ commands.scriptCommand.execute(
+ `(function () {
+ const a = () => { return 2 };
+ debugger;
+ a(a())
+ })()`
+ );
+
+ await waitForEvent(threadFront, "paused");
+ const step1 = await stepOver(threadFront);
+ Assert.equal(step1.frame.where.line, 4, "step to line 4");
+
+ const step2 = await stepIn(threadFront);
+ Assert.equal(step2.frame.where.line, 2, "step in to line 2");
+
+ const step3 = await stepOut(threadFront);
+ Assert.equal(step3.frame.where.line, 4, "step back to line 4");
+ Assert.equal(step3.frame.where.column, 9, "step out to column 9");
+
+ const step4 = await stepIn(threadFront);
+ Assert.equal(step4.frame.where.line, 2, "step in to line 2");
+
+ await threadFront.resume();
+ })
+);