1 files changed, 118 insertions, 0 deletions
diff --git a/js/src/tests/ecma_6/TemplateStrings/templLit.js b/js/src/tests/ecma_6/TemplateStrings/templLit.js
new file mode 100644
index 000000000..0b85ad7d1
--- /dev/null
+++ b/js/src/tests/ecma_6/TemplateStrings/templLit.js
@@ -0,0 +1,118 @@
+// 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 new Error('Expected syntax error: ' + script);
+}
+
+// TEST BEGIN
+
+
+
+// combinations of substitutions
+assertEq("abcdef", `ab${"cd"}ef`);
+assertEq("ab9ef", `ab${4+5}ef`);
+assertEq("cdef", `${"cd"}ef`);
+assertEq("abcd", `ab${"cd"}`);
+assertEq("cd", `${"cd"}`);
+assertEq("", `${""}`);
+assertEq("4", `${4}`);
+
+// multiple substitutions
+assertEq("abcdef", `ab${"cd"}e${"f"}`);
+assertEq("abcdef", `ab${"cd"}${"e"}f`);
+assertEq("abcdef", `a${"b"}${"cd"}e${"f"}`);
+assertEq("abcdef", `${"ab"}${"cd"}${"ef"}`);
+
+// inception
+assertEq("abcdef", `a${`b${"cd"}e${"f"}`}`);
+
+syntaxError("`${}`");
+syntaxError("`${`");
+syntaxError("`${\\n}`");
+syntaxError("`${yield 0}`");
+
+// Extra whitespace inside a template substitution is ignored.
+assertEq(`${
+0
+}`, "0");
+
+assertEq(`${ // Comments work in template substitutions.
+// Even comments that look like code:
+// 0}`, "FAIL");   /* NOTE: This whole line is a comment.
+0}`, "0");
+
+// Template substitutions are expressions, not statements.
+syntaxError("`${0;}`");
+assertEq(`${{}}`, "[object Object]");
+assertEq(`${
+    function f() {
+        return "ok";
+    }()
+}`, "ok");
+
+// Template substitutions can have side effects.
+var x = 0;
+assertEq(`= ${x += 1}`, "= 1");
+assertEq(x, 1);
+
+// The production for a template substitution is Expression, not
+// AssignmentExpression.
+x = 0;
+assertEq(`${++x, "o"}k`, "ok");
+assertEq(x, 1);
+
+// --> is not a comment inside a template.
+assertEq(`
+--> this is text
+`, "\n--> this is text\n");
+
+// reentrancy
+function f(n) {
+    if (n === 0)
+        return "";
+    return `${n}${f(n - 1)}`;
+}
+assertEq(f(9), "987654321");
+
+// Template string substitutions in generator functions can yield.
+function* g() {
+    return `${yield 1} ${yield 2}`;
+}
+
+var it = g();
+var next = it.next();
+assertEq(next.done, false);
+assertEq(next.value, 1);
+next = it.next("hello");
+assertEq(next.done, false);
+assertEq(next.value, 2);
+next = it.next("world");
+assertEq(next.done, true);
+assertEq(next.value, "hello world");
+
+// undefined
+assertEq(`${void 0}`, "undefined");
+assertEq(`${Object.doesNotHaveThisProperty}`, "undefined");
+
+// toString behavior
+assertEq("<toString>", `${{valueOf: () => "<valueOf>", toString: () => "<toString>"}}`);
+assertEq("Hi 42", Function("try {`${{toString: () => { throw 42;}}}`} catch(e) {return \"Hi \" + e;}")());
+
+
+reportCompare(0, 0, "ok");