1 files changed, 285 insertions, 0 deletions
diff --git a/src/test/java/org/apache/commons/lang3/mutable/MutableFloatTest.java b/src/test/java/org/apache/commons/lang3/mutable/MutableFloatTest.java
new file mode 100644
index 000000000..a7312f2e1
--- /dev/null
+++ b/src/test/java/org/apache/commons/lang3/mutable/MutableFloatTest.java
@@ -0,0 +1,285 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.commons.lang3.mutable;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNotEquals;
+import static org.junit.jupiter.api.Assertions.assertThrows;
+import static org.junit.jupiter.api.Assertions.assertTrue;
+
+import org.apache.commons.lang3.AbstractLangTest;
+import org.junit.jupiter.api.Test;
+
+/**
+ * JUnit tests.
+ *
+ * @see MutableFloat
+ */
+public class MutableFloatTest extends AbstractLangTest {
+
+    @Test
+    public void testAddAndGetValueObject() {
+        final MutableFloat mutableFloat = new MutableFloat(5f);
+        final float result = mutableFloat.addAndGet(Float.valueOf(2.5f));
+
+        assertEquals(7.5f, result, 0.01f);
+        assertEquals(7.5f, mutableFloat.floatValue(), 0.01f);
+    }
+
+    @Test
+    public void testAddAndGetValuePrimitive() {
+        final MutableFloat mutableFloat = new MutableFloat(0.5f);
+        final float result = mutableFloat.addAndGet(1f);
+
+        assertEquals(1.5f, result, 0.01f);
+        assertEquals(1.5f, mutableFloat.floatValue(), 0.01f);
+    }
+
+    @Test
+    public void testAddValueObject() {
+        final MutableFloat mutNum = new MutableFloat(1);
+        mutNum.add(Float.valueOf(1.1f));
+
+        assertEquals(2.1f, mutNum.floatValue(), 0.01f);
+    }
+
+    @Test
+    public void testAddValuePrimitive() {
+        final MutableFloat mutNum = new MutableFloat(1);
+        mutNum.add(1.1f);
+
+        assertEquals(2.1f, mutNum.floatValue(), 0.01f);
+    }
+
+    @Test
+    public void testCompareTo() {
+        final MutableFloat mutNum = new MutableFloat(0f);
+
+        assertEquals(0, mutNum.compareTo(new MutableFloat(0f)));
+        assertEquals(+1, mutNum.compareTo(new MutableFloat(-1f)));
+        assertEquals(-1, mutNum.compareTo(new MutableFloat(1f)));
+    }
+
+    @Test
+    public void testCompareToNull() {
+        final MutableFloat mutNum = new MutableFloat(0f);
+        assertThrows(NullPointerException.class, () -> mutNum.compareTo(null));
+    }
+
+    @Test
+    public void testConstructorNull() {
+        assertThrows(NullPointerException.class, () -> new MutableFloat((Number) null));
+    }
+
+    @Test
+    public void testConstructors() {
+        assertEquals(0f, new MutableFloat().floatValue(), 0.0001f);
+
+        assertEquals(1f, new MutableFloat(1f).floatValue(), 0.0001f);
+
+        assertEquals(2f, new MutableFloat(Float.valueOf(2f)).floatValue(), 0.0001f);
+        assertEquals(3f, new MutableFloat(new MutableFloat(3f)).floatValue(), 0.0001f);
+
+        assertEquals(2f, new MutableFloat("2.0").floatValue(), 0.0001f);
+
+    }
+
+    @Test
+    public void testDecrement() {
+        final MutableFloat mutNum = new MutableFloat(1);
+        mutNum.decrement();
+
+        assertEquals(0, mutNum.intValue());
+        assertEquals(0L, mutNum.longValue());
+    }
+
+    @Test
+    public void testDecrementAndGet() {
+        final MutableFloat mutNum = new MutableFloat(1f);
+        final float result = mutNum.decrementAndGet();
+
+        assertEquals(0f, result, 0.01f);
+        assertEquals(0, mutNum.intValue());
+        assertEquals(0L, mutNum.longValue());
+    }
+
+    @Test
+    public void testEquals() {
+        final MutableFloat mutNumA = new MutableFloat(0f);
+        final MutableFloat mutNumB = new MutableFloat(0f);
+        final MutableFloat mutNumC = new MutableFloat(1f);
+
+        assertEquals(mutNumA, mutNumA);
+        assertEquals(mutNumA, mutNumB);
+        assertEquals(mutNumB, mutNumA);
+        assertEquals(mutNumB, mutNumB);
+        assertNotEquals(mutNumA, mutNumC);
+        assertNotEquals(mutNumB, mutNumC);
+        assertEquals(mutNumC, mutNumC);
+        assertNotEquals(null, mutNumA);
+        assertNotEquals(mutNumA, Float.valueOf(0f));
+        assertNotEquals("0", mutNumA);
+    }
+
+    @Test
+    public void testGetAndAddValueObject() {
+        final MutableFloat mutableFloat = new MutableFloat(7.75f);
+        final float result = mutableFloat.getAndAdd(Float.valueOf(2.25f));
+
+        assertEquals(7.75f, result, 0.01f);
+        assertEquals(10f, mutableFloat.floatValue(), 0.01f);
+    }
+
+    @Test
+    public void testGetAndAddValuePrimitive() {
+        final MutableFloat mutableFloat = new MutableFloat(1.25f);
+        final float result = mutableFloat.getAndAdd(0.75f);
+
+        assertEquals(1.25f, result, 0.01f);
+        assertEquals(2f, mutableFloat.floatValue(), 0.01f);
+    }
+
+    @Test
+    public void testGetAndDecrement() {
+        final MutableFloat mutNum = new MutableFloat(1f);
+        final float result = mutNum.getAndDecrement();
+
+        assertEquals(1f, result, 0.01f);
+        assertEquals(0, mutNum.intValue());
+        assertEquals(0L, mutNum.longValue());
+    }
+
+    @Test
+    public void testGetAndIncrement() {
+        final MutableFloat mutNum = new MutableFloat(1f);
+        final float result = mutNum.getAndIncrement();
+
+        assertEquals(1f, result, 0.01f);
+        assertEquals(2, mutNum.intValue());
+        assertEquals(2L, mutNum.longValue());
+    }
+
+    @Test
+    public void testGetSet() {
+        final MutableFloat mutNum = new MutableFloat(0f);
+        assertEquals(0f, new MutableFloat().floatValue(), 0.0001f);
+        assertEquals(Float.valueOf(0), new MutableFloat().getValue());
+
+        mutNum.setValue(1);
+        assertEquals(1f, mutNum.floatValue(), 0.0001f);
+        assertEquals(Float.valueOf(1f), mutNum.getValue());
+
+        mutNum.setValue(Float.valueOf(2f));
+        assertEquals(2f, mutNum.floatValue(), 0.0001f);
+        assertEquals(Float.valueOf(2f), mutNum.getValue());
+
+        mutNum.setValue(new MutableFloat(3f));
+        assertEquals(3f, mutNum.floatValue(), 0.0001f);
+        assertEquals(Float.valueOf(3f), mutNum.getValue());
+    }
+
+    @Test
+    public void testHashCode() {
+        final MutableFloat mutNumA = new MutableFloat(0f);
+        final MutableFloat mutNumB = new MutableFloat(0f);
+        final MutableFloat mutNumC = new MutableFloat(1f);
+
+        assertEquals(mutNumA.hashCode(), mutNumA.hashCode());
+        assertEquals(mutNumA.hashCode(), mutNumB.hashCode());
+        assertNotEquals(mutNumA.hashCode(), mutNumC.hashCode());
+        assertEquals(mutNumA.hashCode(), Float.valueOf(0f).hashCode());
+    }
+
+    @Test
+    public void testIncrement() {
+        final MutableFloat mutNum = new MutableFloat(1);
+        mutNum.increment();
+
+        assertEquals(2, mutNum.intValue());
+        assertEquals(2L, mutNum.longValue());
+    }
+
+    @Test
+    public void testIncrementAndGet() {
+        final MutableFloat mutNum = new MutableFloat(1f);
+        final float result = mutNum.incrementAndGet();
+
+        assertEquals(2f, result, 0.01f);
+        assertEquals(2, mutNum.intValue());
+        assertEquals(2L, mutNum.longValue());
+    }
+
+    @Test
+    public void testNanInfinite() {
+        MutableFloat mutNum = new MutableFloat(Float.NaN);
+        assertTrue(mutNum.isNaN());
+
+        mutNum = new MutableFloat(Float.POSITIVE_INFINITY);
+        assertTrue(mutNum.isInfinite());
+
+        mutNum = new MutableFloat(Float.NEGATIVE_INFINITY);
+        assertTrue(mutNum.isInfinite());
+    }
+
+    @Test
+    public void testPrimitiveValues() {
+        final MutableFloat mutNum = new MutableFloat(1.7F);
+
+        assertEquals( 1, mutNum.intValue() );
+        assertEquals( 1.7, mutNum.doubleValue(), 0.00001 );
+        assertEquals( (byte) 1, mutNum.byteValue() );
+        assertEquals( (short) 1, mutNum.shortValue() );
+        assertEquals( 1, mutNum.intValue() );
+        assertEquals( 1L, mutNum.longValue() );
+    }
+
+    @Test
+    public void testSetNull() {
+        final MutableFloat mutNum = new MutableFloat(0f);
+        assertThrows(NullPointerException.class, () -> mutNum.setValue(null));
+    }
+
+    @Test
+    public void testSubtractValueObject() {
+        final MutableFloat mutNum = new MutableFloat(1);
+        mutNum.subtract(Float.valueOf(0.9f));
+
+        assertEquals(0.1f, mutNum.floatValue(), 0.01f);
+    }
+
+    @Test
+    public void testSubtractValuePrimitive() {
+        final MutableFloat mutNum = new MutableFloat(1);
+        mutNum.subtract(0.9f);
+
+        assertEquals(0.1f, mutNum.floatValue(), 0.01f);
+    }
+
+    @Test
+    public void testToFloat() {
+        assertEquals(Float.valueOf(0f), new MutableFloat(0f).toFloat());
+        assertEquals(Float.valueOf(12.3f), new MutableFloat(12.3f).toFloat());
+    }
+
+    @Test
+    public void testToString() {
+        assertEquals("0.0", new MutableFloat(0f).toString());
+        assertEquals("10.0", new MutableFloat(10f).toString());
+        assertEquals("-123.0", new MutableFloat(-123f).toString());
+    }
+
+}