testcase for module code return/error

ecmascript-testcases/test-commonjs-module-return.js

@@ -0,0 +1,66 @@
+/*
+ *  Module return value / error thrown does not affect caching of the
+ *  module in Duktape.modLoaded.  The module is registered before its
+ *  source code is executed.
+ */
+
+/*===
+Duktape.modSearch foo
+foo.name: foo
+Duktape.modSearch bar
+bar.name: bar
+Duktape.modSearch quux
+Error: aiee
+quux.name: quux
+quux.exported: exportedValue
+===*/
+
+function moduleReturnValueTest() {
+    var mod;
+
+    Duktape.modSearch = function (id) {
+        print('Duktape.modSearch', id);
+        var ret = {
+            foo: 'exports.name = "foo";',
+            bar: 'exports.name = "bar"; return 123;',
+            quux: 'exports.name = "quux"; exports.exported = "exportedValue"; throw new Error("aiee");'
+        }[id];
+        if (ret) {
+            return ret;
+        }
+        throw new Error('module not found: ' + id);
+    };
+
+    /* Undefined return value */
+
+    mod = require('foo');
+    print('foo.name:', mod.name);
+
+    /* Number return value (just an example; this is ignored entirely) */
+
+    mod = require('bar');
+    print('bar.name:', mod.name);
+
+    /* Error thrown */
+
+    try {
+        mod = require('quux');
+        print('quux.name:', mod.name);  // never here
+    } catch (e) {
+        print(e);
+    }
+
+    /* The second time 'quux' is required, it has already been registered
+     * and any partial exports are visible.
+     */
+
+    mod = require('quux');
+    print('quux.name:', mod.name);
+    print('quux.exported:', mod.exported);
+}
+
+try {
+    moduleReturnValueTest();
+} catch (e) {
+    print(e);
+}