skeleton test for equal values

sf105 · sf105 · commit dcd62f0f01f7 · 2016-05-13T09:51:49.000+01:00
diff --git a/hamcrest-library/src/test/java/org/hamcrest/object/HasEqualsValuesTest.java b/hamcrest-library/src/test/java/org/hamcrest/object/HasEqualsValuesTest.java
@@ -0,0 +1,71 @@
+package org.hamcrest.object;
+
+import org.hamcrest.AbstractMatcherTest;
+import org.hamcrest.Description;
+import org.hamcrest.Matcher;
+import org.hamcrest.TypeSafeDiagnosingMatcher;
+
+import java.lang.reflect.Field;
+import java.util.ArrayList;
+import java.util.List;
+
+public class HasEqualsValuesTest extends AbstractMatcherTest {
+    private static final WithPublicFields WITH_PUBLIC_FIELDS = new WithPublicFields(666, "a string");
+    public static final HasEqualValues<WithPublicFields> WITH_PUBLIC_FIELDS_MATCHER = new HasEqualValues<>(WITH_PUBLIC_FIELDS);
+
+    public static class  HasEqualValues<T> extends TypeSafeDiagnosingMatcher<T> {
+
+        private final T expectedObject;
+
+        public HasEqualValues(T expectedObject) {
+            this.expectedObject = expectedObject;
+        }
+
+        @Override
+        protected boolean matchesSafely(T item, Description mismatchDescription) {
+
+            return true;
+        }
+
+        @Override
+        public void describeTo(Description description) {
+            description.appendText("has equal values to ")
+                    .appendText(expectedObject.getClass().getSimpleName())
+                    .appendValueList("[", ",", "]", fieldNames());
+        }
+
+        private List<String> fieldNames() {
+            final List<String> result = new ArrayList<>();
+            for (Field field : expectedObject.getClass().getFields()) {
+                result.add(field.getName());
+            }
+            return result;
+        }
+    }
+
+    @Override
+    protected Matcher<?> createMatcher() {
+        return WITH_PUBLIC_FIELDS_MATCHER;
+    }
+
+    public void testDescribesItself() {
+        assertDescription(
+                "has equal values to WithPublicFields[\"i\",\"s\"]",
+                new HasEqualValues<>(WITH_PUBLIC_FIELDS));
+    }
+
+    public void testMisMatchesDifferentType() {
+        assertMatches(WITH_PUBLIC_FIELDS_MATCHER, new WithPublicFields(666, "a string"));
+    }
+
+
+    public static class WithPublicFields {
+        public final int i;
+        public final String s;
+
+        public WithPublicFields(int i, String s) {
+            this.i = i;
+            this.s = s;
+        }
+    }
+}
