Added convenient is(Class<T>)

joeretro · joeretro · commit 8d168e5e773d · 2006-12-16T18:39:54.000Z
diff --git a/matchers.xml b/matchers.xml
@@ -2,14 +2,14 @@
 
     <!-- Core -->
     <factory class="org.hamcrest.core.Is"/>
-    <factory class="org.hamcrest.core.AllOf"/>
-    <factory class="org.hamcrest.core.AnyOf"/>
     <factory class="org.hamcrest.core.IsNot"/>
     <factory class="org.hamcrest.core.IsEqual"/>
+    <factory class="org.hamcrest.core.IsInstanceOf"/>
+    <factory class="org.hamcrest.core.AllOf"/>
+    <factory class="org.hamcrest.core.AnyOf"/>
     <factory class="org.hamcrest.core.IsSame"/>
     <factory class="org.hamcrest.core.IsAnything"/>
     <factory class="org.hamcrest.core.IsNull"/>
-    <factory class="org.hamcrest.core.IsInstanceOf"/>
     <factory class="org.hamcrest.core.DescribedAs"/>
 
     <!-- Collection -->
diff --git a/src/library/org/hamcrest/core/Is.java b/src/library/org/hamcrest/core/Is.java
@@ -1,5 +1,6 @@
 package org.hamcrest.core;
 
+import static org.hamcrest.core.IsInstanceOf.instanceOf;
 import static org.hamcrest.core.IsEqual.equalTo;
 import org.hamcrest.Factory;
 import org.hamcrest.Matcher;
@@ -53,5 +54,16 @@ public static <T> Matcher<T> is(T value) {
         return is(equalTo(value));
     }
 
+    /**
+     * This is a shortcut to the frequently used is(instanceOf(SomeClass.class)).
+     *
+     * eg. assertThat(cheese, is(instanceOf(Cheddar.class)))
+     * vs  assertThat(cheese, is(Cheddar.class))
+     */
+    @Factory
+    public static <T> Matcher<T> is(Class<T> type) {
+        return is(instanceOf(type));
+    }
+
 }
 
