1 files changed, 148 insertions, 0 deletions
diff --git a/js/src/tests/ecma_6/TemplateStrings/noSubst.js b/js/src/tests/ecma_6/TemplateStrings/noSubst.js
new file mode 100644
index 000000000..730275fd9
--- /dev/null
+++ b/js/src/tests/ecma_6/TemplateStrings/noSubst.js
@@ -0,0 +1,148 @@
+// 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/.
+
+// This test case is weird in the sense the actual work happens at the eval
+// at the end. If template strings are not enabled, the test cases would throw
+// a syntax error and we'd have failure reported. To avoid that, the entire
+// test case is commented out and is part of a function. We use toString to
+// get the string version, obtain the actual lines to run, and then use eval to
+// do the actual evaluation.
+
+function syntaxError (script) {
+    try {
+        Function(script);
+    } catch (e) {
+        if (e.name === "SyntaxError") {
+            return;
+        }
+    }
+    throw "Expected syntax error: " + script;
+}
+
+// TEST BEGIN
+
+// unterminated quasi literal
+syntaxError("`");
+syntaxError("`$");
+syntaxError("`${");
+syntaxError("`${}");
+syntaxError("`${1}");
+syntaxError("`${1 + 2}");
+
+// almost template substitutions
+assertEq("$", `$`);
+assertEq("$}", `$}`);
+assertEq("}", `}`);
+assertEq("{", `{`);
+
+
+// character escape sequence (single escape character)
+assertEq("\'", `\'`);
+assertEq("\"", `\"`);
+assertEq("\\", `\\`);
+assertEq("\b", `\b`);
+assertEq("\f", `\f`);
+assertEq("\n", `\n`);
+assertEq("\r", `\r`);
+assertEq("\t", `\t`);
+assertEq("\v", `\v`);
+assertEq("\r\n", `\r\n`);
+
+
+assertEq("\0", eval("`\\" + String.fromCharCode(0) + "`"));
+assertEq("$", `\$`);
+assertEq(".", `\.`);
+assertEq("A", `\A`);
+assertEq("a", `\a`);
+
+
+// digit escape sequence
+assertEq("\0", `\0`);
+syntaxError("`\\1`");
+syntaxError("`\\2`");
+syntaxError("`\\3`");
+syntaxError("`\\4`");
+syntaxError("`\\5`");
+syntaxError("`\\6`");
+syntaxError("`\\7`");
+syntaxError("`\\01`");
+syntaxError("`\\001`");
+syntaxError("`\\00`");
+
+// hex escape sequence
+syntaxError("`\\x`");
+syntaxError("`\\x0`");
+syntaxError("`\\x0Z`");
+syntaxError("`\\xZ`");
+
+assertEq("\0", `\x00`);
+assertEq("$", `\x24`);
+assertEq(".", `\x2E`);
+assertEq("A", `\x41`);
+assertEq("a", `\x61`);
+assertEq("AB", `\x41B`);
+assertEq(String.fromCharCode(0xFF), `\xFF`);
+
+
+// unicode escape sequence
+
+assertEq("\0", `\u0000`);
+assertEq("$", `\u0024`);
+assertEq(".", `\u002E`);
+assertEq("A", `\u0041`);
+assertEq("a", `\u0061`);
+assertEq("AB", `\u0041B`);
+assertEq(String.fromCharCode(0xFFFF), `\uFFFF`);
+
+
+// line continuation
+assertEq("", eval("`\\\n`"));
+assertEq("", eval("`\\\r`"));
+assertEq("", eval("`\\\u2028`"));
+assertEq("", eval("`\\\u2029`"));
+assertEq("\u2028", eval("`\u2028`"));
+assertEq("\u2029", eval("`\u2029`"));
+
+assertEq("a\nb", eval("`a\rb`"))
+assertEq("a\nb", eval("`a\r\nb`"))
+assertEq("a\n\nb", eval("`a\r\rb`"))
+
+
+// source character
+for (var i = 0; i < 0xFF; ++i) {
+    var c = String.fromCharCode(i);
+    if (c == "`" || c == "\\" || c == "\r") continue;
+    assertEq(c, eval("`" + c + "`"));
+}
+
+assertEq("", ``);
+assertEq("`", `\``);
+assertEq("$", `$`);
+assertEq("$$", `$$`);
+assertEq("$$}", `$$}`);
+
+// multi-line
+assertEq(`hey
+there`, "hey\nthere");
+
+// differences between strings and template strings
+syntaxError("var obj = { `illegal`: 1}");
+
+// test for JSON.parse
+assertThrowsInstanceOf(() => JSON.parse('[1, `false`]'), SyntaxError);
+
+syntaxError('({get `name`() { return 10; }});');
+
+// test for "use strict" directive
+assertEq(5, Function("`use strict`; return 05;")());
+var func = function f() {
+    `ignored string`;
+    "use strict";
+    return 06;
+}
+assertEq(6, func());
+syntaxError("\"use strict\"; return 06;");
+
+
+reportCompare(0, 0, "ok");