Check whether URL class is present again

Jasmine had this check before. Then it was removed in v4.0.0,
commit fe0a83b "Removed support for Internet Explorer".

Unfortunately, GJS has no built-in `URL` too.

Author: amezin

spec/core/baseSpec.js

@@ -69,6 +69,7 @@ describe('base helpers', function() {
 
   describe('isURL', function() {
     it('returns true when the object is a URL', function() {
+      specHelpers.requireUrls();
       expect(privateUnderTest.isURL(new URL('http://localhost/'))).toBe(true);
     });
 

spec/core/matchers/matchersUtilSpec.js

@@ -662,6 +662,8 @@ describe('matchersUtil', function() {
     });
 
     it('passes when comparing two identical URLs', function() {
+      specHelpers.requireUrls();
+
       const matchersUtil = new privateUnderTest.MatchersUtil();
 
       expect(
@@ -673,6 +675,8 @@ describe('matchersUtil', function() {
     });
 
     it('fails when comparing two different URLs', function() {
+      specHelpers.requireUrls();
+
       const matchersUtil = new privateUnderTest.MatchersUtil();
       const url1 = new URL('http://localhost/1');
 

spec/helpers/checkForUrl.js

@@ -0,0 +1,16 @@
+(function() {
+  function hasUrlConstructor() {
+    try {
+      new URL('http://localhost/');
+      return true;
+    } catch {
+      return false;
+    }
+  }
+
+  specHelpers.requireUrls = function() {
+    if (!hasUrlConstructor()) {
+      pending('Environment does not support URLs');
+    }
+  };
+})();

spec/support/jasmine-browser.js

@@ -21,6 +21,7 @@ module.exports = {
     'helpers/init.js',
     'helpers/generator.js',
     'helpers/BrowserFlags.js',
+    'helpers/checkForUrl.js',
     'helpers/domHelpers.js',
     'helpers/integrationMatchers.js',
     'helpers/callerFilenameShim.js',

spec/support/jasmine.json

@@ -6,6 +6,7 @@
   ],
   "helpers": [
     "helpers/init.js",
+    "helpers/checkForUrl.js",
     "helpers/domHelpers.js",
     "helpers/integrationMatchers.js",
     "helpers/callerFilenameShim.js",

src/core/base.js

@@ -177,13 +177,19 @@ getJasmineRequireObj().base = function(j$, private$, jasmineGlobal) {
     );
   };
 
-  private$.isURL = function(obj) {
-    return (
-      obj !== null &&
-      typeof obj !== 'undefined' &&
-      obj.constructor === jasmineGlobal.URL
-    );
-  };
+  if (typeof jasmineGlobal.URL !== 'undefined') {
+    private$.isURL = function(obj) {
+      return (
+        obj !== null &&
+        typeof obj !== 'undefined' &&
+        obj.constructor === jasmineGlobal.URL
+      );
+    };
+  } else {
+    private$.isURL = function(obj) {
+      return false;
+    };
+  }
 
   private$.isIterable = function(value) {
     return value && !!value[Symbol.iterator];