From 416fa21047df6f67140cbfb29f45a4e87bab58ab Mon Sep 17 00:00:00 2001
From: Jan Ouwens <jan.ouwens@gmail.com>
Date: Wed, 4 Jul 2018 17:09:40 +0200
Subject: [PATCH] #198: Adds prefab values for nio buffer

---
 .../prefabvalues/JavaApiPrefabValues.java     | 21 ++++++++++++++
 .../extended_contract/JavaApiClassesTest.java | 29 +++++++++++++++++++
 2 files changed, 50 insertions(+)

diff --git a/src/main/java/nl/jqno/equalsverifier/internal/prefabvalues/JavaApiPrefabValues.java b/src/main/java/nl/jqno/equalsverifier/internal/prefabvalues/JavaApiPrefabValues.java
index 3b6b40643..d187abfc5 100644
--- a/src/main/java/nl/jqno/equalsverifier/internal/prefabvalues/JavaApiPrefabValues.java
+++ b/src/main/java/nl/jqno/equalsverifier/internal/prefabvalues/JavaApiPrefabValues.java
@@ -7,6 +7,7 @@
 import java.io.File;
 import java.math.BigDecimal;
 import java.math.BigInteger;
+import java.nio.*;
 import java.text.DateFormat;
 import java.text.SimpleDateFormat;
 import java.util.*;
@@ -65,6 +66,7 @@ private void addJavaClasses() {
         addMaps();
         addSets();
         addQueues();
+        addNioBuffers();
         addAwtClasses();
         addJava8ApiClasses();
         addJavaFxClasses();
@@ -281,6 +283,25 @@ public Tuple<DelayQueue> createValues(TypeTag tag, PrefabValues pf, LinkedHashSe
         addValues(SynchronousQueue.class, new SynchronousQueue<>(), new SynchronousQueue<>(), new SynchronousQueue<>());
     }
 
+    private void addNioBuffers() {
+        addValues(Buffer.class,
+                ByteBuffer.wrap(new byte[] { 0 }), ByteBuffer.wrap(new byte[] { 1 }), ByteBuffer.wrap(new byte[] { 0 }));
+        addValues(ByteBuffer.class,
+                ByteBuffer.wrap(new byte[] { 0 }), ByteBuffer.wrap(new byte[] { 1 }), ByteBuffer.wrap(new byte[] { 0 }));
+        addValues(CharBuffer.class,
+                CharBuffer.wrap("a"), CharBuffer.wrap("b"), CharBuffer.wrap("a"));
+        addValues(DoubleBuffer.class,
+                DoubleBuffer.wrap(new double[] { 0.0 }), DoubleBuffer.wrap(new double[] { 1.0 }), DoubleBuffer.wrap(new double[] { 0.0 }));
+        addValues(FloatBuffer.class,
+                FloatBuffer.wrap(new float[] { 0.0f }), FloatBuffer.wrap(new float[] { 1.0f }), FloatBuffer.wrap(new float[] { 0.0f }));
+        addValues(IntBuffer.class,
+                IntBuffer.wrap(new int[] { 0 }), IntBuffer.wrap(new int[] { 1 }), IntBuffer.wrap(new int[] { 0 }));
+        addValues(LongBuffer.class,
+                LongBuffer.wrap(new long[] { 0 }), LongBuffer.wrap(new long[] { 1 }), LongBuffer.wrap(new long[] { 0 }));
+        addValues(ShortBuffer.class,
+                ShortBuffer.wrap(new short[] { 0 }), ShortBuffer.wrap(new short[] { 1 }), ShortBuffer.wrap(new short[] { 0 }));
+    }
+
     private void addAwtClasses() {
         prefabValues.addLazyFactory("java.awt.Color", new ReflectiveLazyConstantFactory<>("java.awt.Color", "RED", "BLACK"));
         prefabValues.addLazyFactory("java.awt.color.ColorSpace", new ReflectiveLazyAwtFactory<>("java.awt.color.ColorSpace"));
diff --git a/src/test/java/nl/jqno/equalsverifier/integration/extended_contract/JavaApiClassesTest.java b/src/test/java/nl/jqno/equalsverifier/integration/extended_contract/JavaApiClassesTest.java
index 1d313eb10..7e42fb8e7 100644
--- a/src/test/java/nl/jqno/equalsverifier/integration/extended_contract/JavaApiClassesTest.java
+++ b/src/test/java/nl/jqno/equalsverifier/integration/extended_contract/JavaApiClassesTest.java
@@ -7,6 +7,7 @@
 
 import java.io.File;
 import java.net.InetAddress;
+import java.nio.*;
 import java.text.SimpleDateFormat;
 import java.util.*;
 import java.util.concurrent.*;
@@ -46,6 +47,12 @@ public void succeed_whenClassContainsAMap() {
                 .verify();
     }
 
+    @Test
+    public void succeed_whenClassContainsANioBuffer() {
+        EqualsVerifier.forClass(NioBufferContainer.class)
+                .verify();
+    }
+
     @Test
     public void succeed_whenClassContainsACommonJavaApiType() {
         EqualsVerifier.forClass(CommonClassesContainer.class)
@@ -232,6 +239,28 @@ protected void callAbstractMethodsOnInterface() {
         }
     }
 
+    @SuppressWarnings("unused") // because of the use of defaultEquals and defaultHashCode
+    static final class NioBufferContainer {
+        private final Buffer buffer;
+        private final ByteBuffer byteBuffer;
+        private final CharBuffer charBuffer;
+        private final DoubleBuffer doubleBuffer;
+        private final FloatBuffer floatBuffer;
+        private final IntBuffer intBuffer;
+        private final LongBuffer longBuffer;
+        private final ShortBuffer shortBuffer;
+
+        // CHECKSTYLE: ignore ParameterNumber for 1 line.
+        public NioBufferContainer(Buffer buffer, ByteBuffer byteBuffer, CharBuffer charBuffer, DoubleBuffer doubleBuffer,
+                FloatBuffer floatBuffer, IntBuffer intBuffer, LongBuffer longBuffer, ShortBuffer shortBuffer) {
+            this.buffer = buffer; this.byteBuffer = byteBuffer; this.charBuffer = charBuffer; this.doubleBuffer = doubleBuffer;
+            this.floatBuffer = floatBuffer; this.intBuffer = intBuffer; this.longBuffer = longBuffer; this.shortBuffer = shortBuffer;
+        }
+
+        @Override public boolean equals(Object obj) { return defaultEquals(this, obj); }
+        @Override public int hashCode() { return defaultHashCode(this); }
+    }
+
     @SuppressWarnings("unused") // because of the use of defaultEquals and defaultHashCode
     static final class CommonClassesContainer {
         private final String string;