1 files changed, 168 insertions, 0 deletions
diff --git a/js/src/jsapi-tests/testXDR.cpp b/js/src/jsapi-tests/testXDR.cpp
new file mode 100644
index 000000000..806a4b743
--- /dev/null
+++ b/js/src/jsapi-tests/testXDR.cpp
@@ -0,0 +1,168 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
+ * vim: set ts=8 sts=4 et sw=4 tw=99:
+ * 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/. */
+
+#include "jsfriendapi.h"
+#include "jsscript.h"
+#include "jsstr.h"
+
+#include "jsapi-tests/tests.h"
+
+#include "jsscriptinlines.h"
+
+static bool
+GetBuildId(JS::BuildIdCharVector* buildId)
+{
+    const char buildid[] = "testXDR";
+    return buildId->append(buildid, sizeof(buildid));
+}
+
+static JSScript*
+FreezeThaw(JSContext* cx, JS::HandleScript script)
+{
+    JS::SetBuildIdOp(cx, GetBuildId);
+
+    // freeze
+    JS::TranscodeBuffer buffer;
+    JS::TranscodeResult rs = JS::EncodeScript(cx, buffer, script);
+    if (rs != JS::TranscodeResult_Ok)
+        return nullptr;
+
+    // thaw
+    JS::RootedScript script2(cx);
+    rs = JS::DecodeScript(cx, buffer, &script2);
+    if (rs != JS::TranscodeResult_Ok)
+        return nullptr;
+    return script2;
+}
+
+enum TestCase {
+    TEST_FIRST,
+    TEST_SCRIPT = TEST_FIRST,
+    TEST_FUNCTION,
+    TEST_SERIALIZED_FUNCTION,
+    TEST_END
+};
+
+BEGIN_TEST(testXDR_bug506491)
+{
+    const char* s =
+        "function makeClosure(s, name, value) {\n"
+        "    eval(s);\n"
+        "    Math.sin(value);\n"
+        "    let n = name, v = value;\n"
+        "    return function () { return String(v); };\n"
+        "}\n"
+        "var f = makeClosure('0;', 'status', 'ok');\n";
+
+    // compile
+    JS::CompileOptions options(cx);
+    options.setFileAndLine(__FILE__, __LINE__);
+    JS::RootedScript script(cx);
+    CHECK(JS_CompileScript(cx, s, strlen(s), options, &script));
+    CHECK(script);
+
+    script = FreezeThaw(cx, script);
+    CHECK(script);
+
+    // execute
+    JS::RootedValue v2(cx);
+    CHECK(JS_ExecuteScript(cx, script, &v2));
+
+    // try to break the Block object that is the parent of f
+    JS_GC(cx);
+
+    // confirm
+    EVAL("f() === 'ok';\n", &v2);
+    JS::RootedValue trueval(cx, JS::TrueValue());
+    CHECK_SAME(v2, trueval);
+    return true;
+}
+END_TEST(testXDR_bug506491)
+
+BEGIN_TEST(testXDR_bug516827)
+{
+    // compile an empty script
+    JS::CompileOptions options(cx);
+    options.setFileAndLine(__FILE__, __LINE__);
+    JS::RootedScript script(cx);
+    CHECK(JS_CompileScript(cx, "", 0, options, &script));
+    CHECK(script);
+
+    script = FreezeThaw(cx, script);
+    CHECK(script);
+
+    // execute with null result meaning no result wanted
+    CHECK(JS_ExecuteScript(cx, script));
+    return true;
+}
+END_TEST(testXDR_bug516827)
+
+BEGIN_TEST(testXDR_source)
+{
+    const char* samples[] = {
+        // This can't possibly fail to compress well, can it?
+        "function f(x) { return x + x + x + x + x + x + x + x + x + x + x + x + x + x + x + x + x + x + x + x + x + x + x + x + x + x + x + x + x + x + x + x + x + x + x + x + x + x + x + x + x + x + x + x + x + x + x + x + x + x + x + x + x + x + x + x + x + x + x + x + x + x + x + x + x + x + x + x + x + x + x + x + x + x + x + x + x + x + x + x + x + x + x + x + x + x + x + x + x + x + x + x + x + x + x + x + x + x + x + x + x + x + x + x + x + x + x + x + x + x + x + x + x + x + x + x + x + x + x + x + x + x + x + x + x + x + x + x + x + x + x + x + x + x + x + x + x + x + x + x + x + x + x + x + x + x + x + x + x + x }",
+        "short",
+        nullptr
+    };
+    for (const char** s = samples; *s; s++) {
+        JS::CompileOptions options(cx);
+        options.setFileAndLine(__FILE__, __LINE__);
+        JS::RootedScript script(cx);
+        CHECK(JS_CompileScript(cx, *s, strlen(*s), options, &script));
+        CHECK(script);
+        script = FreezeThaw(cx, script);
+        CHECK(script);
+        JSString* out = JS_DecompileScript(cx, script, "testing", 0);
+        CHECK(out);
+        bool equal;
+        CHECK(JS_StringEqualsAscii(cx, out, *s, &equal));
+        CHECK(equal);
+    }
+    return true;
+}
+END_TEST(testXDR_source)
+
+BEGIN_TEST(testXDR_sourceMap)
+{
+    const char* sourceMaps[] = {
+        "http://example.com/source-map.json",
+        "file:///var/source-map.json",
+        nullptr
+    };
+    JS::RootedScript script(cx);
+    for (const char** sm = sourceMaps; *sm; sm++) {
+        JS::CompileOptions options(cx);
+        options.setFileAndLine(__FILE__, __LINE__);
+        CHECK(JS_CompileScript(cx, "", 0, options, &script));
+        CHECK(script);
+
+        size_t len = strlen(*sm);
+        JS::UniqueTwoByteChars expected_wrapper(js::InflateString(cx, *sm, &len));
+        char16_t *expected = expected_wrapper.get();
+        CHECK(expected);
+
+        // The script source takes responsibility of free'ing |expected|.
+        CHECK(script->scriptSource()->setSourceMapURL(cx, expected));
+        script = FreezeThaw(cx, script);
+        CHECK(script);
+        CHECK(script->scriptSource());
+        CHECK(script->scriptSource()->hasSourceMapURL());
+
+        const char16_t* actual = script->scriptSource()->sourceMapURL();
+        CHECK(actual);
+
+        while (*expected) {
+            CHECK(*actual);
+            CHECK(*expected == *actual);
+            expected++;
+            actual++;
+        }
+        CHECK(!*actual);
+    }
+    return true;
+}
+END_TEST(testXDR_sourceMap)