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node_modules/resolve/test/resolver_sync.js

@@ -290,6 +290,35 @@ test('not a directory', function (t) {
     } catch (err) {
         t.ok(err, 'a non-directory errors');
         t.equal(err && err.message, 'Cannot find module \'' + path + "' from '" + __filename + "'");
+        t.equal(err && err.code, 'MODULE_NOT_FOUND');
+    }
+    t.end();
+});
+
+test('non-string "main" field in package.json', function (t) {
+    var dir = path.join(__dirname, 'resolver');
+    try {
+        var result = resolve.sync('./invalid_main', { basedir: dir });
+        t.equal(result, undefined, 'result should not exist');
+        t.fail('should not get here');
+    } catch (err) {
+        t.ok(err, 'errors on non-string main');
+        t.equal(err.message, 'package “invalid main” `main` must be a string');
+        t.equal(err.code, 'INVALID_PACKAGE_MAIN');
+    }
+    t.end();
+});
+
+test('non-string "main" field in package.json', function (t) {
+    var dir = path.join(__dirname, 'resolver');
+    try {
+        var result = resolve.sync('./invalid_main', { basedir: dir });
+        t.equal(result, undefined, 'result should not exist');
+        t.fail('should not get here');
+    } catch (err) {
+        t.ok(err, 'errors on non-string main');
+        t.equal(err.message, 'package “invalid main” `main` must be a string');
+        t.equal(err.code, 'INVALID_PACKAGE_MAIN');
     }
     t.end();
 });