1 files changed, 65 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/debug/Script-getLineOffsets-05.js b/js/src/jit-test/tests/debug/Script-getLineOffsets-05.js
new file mode 100644
index 0000000000..0a030ad87e
--- /dev/null
+++ b/js/src/jit-test/tests/debug/Script-getLineOffsets-05.js
@@ -0,0 +1,65 @@
+// getLineOffsets identifies multiple ways to land on a line.
+
+var g = newGlobal({newCompartment: true});
+g.line0 = null;
+var dbg = Debugger(g);
+var where;
+dbg.onDebuggerStatement = function (frame) {
+    var s = frame.script, lineno, offs;
+
+    lineno = g.line0 + where;
+    offs = s.getLineOffsets(lineno);
+    for (var i = 0; i < offs.length; i++) {
+        assertEq(s.getOffsetLocation(offs[i]).lineNumber, lineno);
+        s.setBreakpoint(offs[i], {hit: function () { g.log += 'B'; }});
+    }
+
+    lineno++;
+    offs = s.getLineOffsets(lineno);
+    for (var i = 0; i < offs.length; i++) {
+        assertEq(s.getOffsetLocation(offs[i]).lineNumber, lineno);
+        s.setBreakpoint(offs[i], {hit: function () { g.log += 'C'; }});
+    }
+
+    g.log += 'A';
+};
+
+function test(s) {
+    assertEq(s.charAt(s.length - 1), '\n');
+    var count = (s.split(/\n/).length - 1); // number of lines in s
+    g.log = '';
+    where = 1 + count;
+    g.eval("line0 = Error().lineNumber;\n" +
+           "debugger;\n" +          // line0 + 1
+           s +                      // line0 + 2 ... line0 + where
+           "log += 'D';\n");
+    assertEq(g.log, 'AB!CD');
+}
+
+// if-statement with yes and no paths on a single line
+g.i = 0;
+test("if (i === 0)\n" +
+     "    log += '!'; else log += 'X';\n");
+test("if (i === 2)\n" +
+     "    log += 'X'; else log += '!';\n");
+
+// break to a line that has code inside and outside the loop
+g.i = 2;
+test("while (1) {\n" +
+     "    if (i === 2) break;\n" +
+     "    log += 'X'; } log += '!';\n");
+
+// leaving a while loop by failing the test, when the last line has stuff both inside and outside the loop
+g.i = 0;
+test("while (i > 0) {\n" +
+     "    if (i === 70) log += 'X';\n" +
+     "    --i;  } log += '!';\n");
+
+// multiple case-labels on the same line
+g.i = 0;
+test("switch (i) {\n" +
+     "    case 0: case 1: log += '!'; break; }\n");
+test("switch ('' + i) {\n" +
+     "    case '0': case '1': log += '!'; break; }\n");
+test("switch (i) {\n" +
+     "    case 'ok' + i: case i - i: log += '!'; break; }\n");