1 files changed, 44 insertions, 0 deletions
diff --git a/hamcrest-core/src/org/hamcrest/core/IsInstanceOf.java b/hamcrest-core/src/org/hamcrest/core/IsInstanceOf.java
new file mode 100644
index 0000000..df20824
--- /dev/null
+++ b/hamcrest-core/src/org/hamcrest/core/IsInstanceOf.java
@@ -0,0 +1,44 @@
+/*  Copyright (c) 2000-2006 hamcrest.org
+ */
+package org.hamcrest.core;
+
+import org.hamcrest.Description;
+import org.hamcrest.Matcher;
+import org.hamcrest.Factory;
+import org.hamcrest.BaseMatcher;
+
+
+/**
+ * Tests whether the value is an instance of a class.
+ */
+public class IsInstanceOf extends BaseMatcher<Object> {
+    private final Class<?> theClass;
+
+    /**
+     * Creates a new instance of IsInstanceOf
+     *
+     * @param theClass The predicate evaluates to true for instances of this class
+     *                 or one of its subclasses.
+     */
+    public IsInstanceOf(Class<?> theClass) {
+        this.theClass = theClass;
+    }
+
+    public boolean matches(Object item) {
+        return theClass.isInstance(item);
+    }
+
+    public void describeTo(Description description) {
+        description.appendText("an instance of ")
+                .appendText(theClass.getName());
+    }
+
+    /**
+     * Is the value an instance of a particular type?
+     */
+    @Factory
+    public static Matcher<Object> instanceOf(Class<?> type) {
+        return new IsInstanceOf(type);
+    }
+
+}