1 files changed, 50 insertions, 0 deletions
diff --git a/js/src/tests/non262/template-strings/debugLineNumber.js b/js/src/tests/non262/template-strings/debugLineNumber.js
new file mode 100644
index 0000000000..aba1656866
--- /dev/null
+++ b/js/src/tests/non262/template-strings/debugLineNumber.js
@@ -0,0 +1,50 @@
+// This Source Code Form is subject to the terms of the Mozilla Public
+// License, v. 2.0. If a copy of the MPL was not distributed with this
+// file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+// TEST BEGIN
+
+// verify debugger line numbers are accurate
+try {
+    `
+    a
+    b
+    c
+    `;
+    throw Error("error");
+} catch (e) {
+    assertEq(e.lineNumber, 14);
+}
+
+try {
+    function tagThatThrows(...args) { throw new Error(); }
+
+    tagThatThrows`
+        multi-line
+        template
+        string`;
+} catch (e) {
+    var stackLines = e.stack.split('\n');
+    var firstLine = stackLines[0].split(':');
+    var secondLine = stackLines[1].split(':');
+    var firstLineSize = firstLine.length;
+    var secondLineSize = secondLine.length;
+    assertEq(firstLine[firstLineSize - 2], "20");
+    assertEq(firstLine[firstLineSize - 1], "45");
+    assertEq(secondLine[secondLineSize - 2], "22");
+    assertEq(secondLine[secondLineSize - 1], "18");
+}
+
+try {
+    ` multi-line
+        template
+        with
+        ${substitutionThatThrows()}`
+
+} catch (e) {
+    assertEq(e.lineNumber, 42);
+}
+
+
+
+reportCompare(0, 0, "ok");