1 files changed, 67 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/modules/import-meta.js b/js/src/jit-test/tests/modules/import-meta.js
new file mode 100644
index 0000000000..98697fa2e1
--- /dev/null
+++ b/js/src/jit-test/tests/modules/import-meta.js
@@ -0,0 +1,67 @@
+// |jit-test| module
+
+// import.meta is an object.
+assertEq(typeof import.meta, "object");
+assertEq(import.meta !== null, true);
+
+// import.meta always returns the same object.
+let obj = import.meta;
+assertEq(import.meta, obj);
+
+// Test calling from lazily compile function.
+function get() {
+    return import.meta;
+}
+assertEq(get(), import.meta);
+
+// import.meta.url: This property will contain the module script's base URL,
+// serialized.
+
+assertEq("url" in import.meta, true);
+assertEq(import.meta.url.endsWith("import-meta.js"), true);
+
+assertEq("resolve" in import.meta, true);
+
+assertEq(import.meta.resolve("./x"),
+         import.meta.url.replace("import-meta.js", "x"));
+
+import getOtherMetaObject from "exportImportMeta.js";
+
+let otherImportMeta = getOtherMetaObject();
+assertEq(otherImportMeta.url.endsWith("exportImportMeta.js"), true);
+
+// By default the import.meta object will be extensible, and its properties will
+// be writable, configurable, and enumerable.
+
+assertEq(Object.isExtensible(import.meta), true);
+
+for (const name of Reflect.ownKeys(import.meta)) {
+  const desc = Object.getOwnPropertyDescriptor(import.meta, name);
+  assertEq(desc.writable, true);
+  assertEq(desc.enumerable, true);
+  assertEq(desc.configurable, true);
+  assertEq(desc.value, import.meta[name]);
+}
+
+// The import.meta object's prototype is null.
+assertEq(Object.getPrototypeOf(import.meta), null);
+
+import.meta.url = 0;
+assertEq(import.meta.url, 0);
+
+import.meta.newProp = 42;
+assertEq(import.meta.newProp, 42);
+
+let found = new Set(Reflect.ownKeys(import.meta));
+
+assertEq(found.size, 3);
+assertEq(found.has("url"), true);
+assertEq(found.has("newProp"), true);
+assertEq(found.has("resolve"), true);
+
+delete import.meta.url;
+delete import.meta.newProp;
+delete import.meta.resolve;
+
+found = new Set(Reflect.ownKeys(import.meta));
+assertEq(found.size, 0);