add test

Author: DanielYang59

test/link-check.test.js

@@ -268,6 +268,18 @@ describe('link-check', function () {
         });
     });
 
+    it('should handle valid mailto with multiple recipients', function (done) {
+        linkCheck(
+            'mailto:[email protected],[email protected]?subject=Test',
+            function (err, result) {
+                expect(err).to.be(null);
+                expect(result.link).to.be('mailto:[email protected],[email protected]?subject=Test');
+                expect(result.status).to.be('alive');
+                done();
+            }
+        );
+    });
+
     it('should handle valid mailto with encoded characters in address', function (done) {
         linkCheck('mailto:foo%[email protected]', function (err, result) {
             expect(err).to.be(null);
@@ -304,6 +316,18 @@ describe('link-check', function () {
         });
     });
 
+    it('should handle invalid mailto with multiple recipients', function (done) {
+        linkCheck(
+            'mailto:foo@@bar@@baz,[email protected]?subject=Test',
+            function (err, result) {
+                expect(err).to.be(null);
+                expect(result.link).to.be('mailto:foo@@bar@@baz,[email protected]?subject=Test');
+                expect(result.status).to.be('dead');
+                done();
+            }
+        );
+    });
+
     it('should handle file protocol', function(done) {
         linkCheck('fixtures/file.md', { baseUrl: 'file://' + __dirname }, function(err, result) {
             expect(err).to.be(null);