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/*
* Copyright (C) 2017 The Android Open Source Project
*
* Licensed 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 libcore.android.system;
import android.system.StructTimespec;
import junit.framework.TestCase;
/**
* Unit test for {@link StructTimespec}
*/
public class StructTimespecTest extends TestCase {
public void testConstructor() {
StructTimespec val = new StructTimespec(Long.MIN_VALUE, 0);
assertEquals(Long.MIN_VALUE, val.tv_sec);
assertEquals(0, val.tv_nsec);
val = new StructTimespec(-23, 23);
assertEquals(-23, val.tv_sec);
assertEquals(23, val.tv_nsec);
val = new StructTimespec(0, 42);
assertEquals(0, val.tv_sec);
assertEquals(42, val.tv_nsec);
val = new StructTimespec(23, 91);
assertEquals(23, val.tv_sec);
assertEquals(91, val.tv_nsec);
val = new StructTimespec(Long.MAX_VALUE, 999_999_999);
assertEquals(Long.MAX_VALUE, val.tv_sec);
assertEquals(999_999_999, val.tv_nsec);
}
public void testConstructorInvalidNsec() {
try {
new StructTimespec(0, 1_000_000_000);
fail();
} catch (IllegalArgumentException e) {
// expected
}
try {
new StructTimespec(0, -1);
fail();
} catch (IllegalArgumentException e) {
// expected
}
}
public void testCompare() {
StructTimespec[] specs = new StructTimespec[]{new StructTimespec(Long.MIN_VALUE, 0),
new StructTimespec(-24, 91),
new StructTimespec(-23, 23),
new StructTimespec(0, 41),
new StructTimespec(0, 42),
new StructTimespec(22, 91),
new StructTimespec(23, 23),
new StructTimespec(24, 91),
new StructTimespec(Long.MAX_VALUE, 999_999_999)};
for (int a = 0; a < specs.length; a++) {
for (int b = 0; b < specs.length; b++) {
if (a < b) {
assertTrue(a + "<" + b, specs[a].compareTo(specs[b]) < 0);
} else if (a == b) {
assertTrue(a + "==" + b, specs[a].compareTo(specs[b]) == 0);
} else {
assertTrue(a + ">" + b, specs[a].compareTo(specs[b]) > 0);
}
}
}
}
public void testEquals() {
StructTimespec allZero1 = new StructTimespec(0, 0);
StructTimespec allZero2 = new StructTimespec(0, 0);
StructTimespec val1 = new StructTimespec(23, 42);
StructTimespec val2 = new StructTimespec(23, 42);
StructTimespec secZero1 = new StructTimespec(0, 42);
StructTimespec secZero2 = new StructTimespec(0, 42);
StructTimespec nsecZero1 = new StructTimespec(23, 0);
StructTimespec nsecZero2 = new StructTimespec(23, 0);
assertTrue(allZero1.equals(allZero2));
assertTrue(val1.equals(val2));
assertTrue(secZero1.equals(secZero2));
assertTrue(nsecZero1.equals(nsecZero2));
// Compare equals in both directions
assertFalse(allZero1.equals(val1));
assertFalse(allZero1.equals(secZero1));
assertFalse(allZero1.equals(nsecZero1));
assertFalse(val1.equals(secZero1));
assertFalse(val1.equals(nsecZero1));
assertFalse(val1.equals(allZero1));
assertFalse(secZero1.equals(nsecZero1));
assertFalse(secZero1.equals(allZero1));
assertFalse(secZero1.equals(val1));
assertFalse(nsecZero1.equals(allZero1));
assertFalse(nsecZero1.equals(val1));
assertFalse(nsecZero1.equals(secZero1));
}
public void testHashcode() {
StructTimespec allZero1 = new StructTimespec(0, 0);
StructTimespec allZero2 = new StructTimespec(0, 0);
StructTimespec val1 = new StructTimespec(23, 42);
StructTimespec val2 = new StructTimespec(23, 42);
StructTimespec secZero1 = new StructTimespec(0, 42);
StructTimespec secZero2 = new StructTimespec(0, 42);
StructTimespec nsecZero1 = new StructTimespec(23, 0);
StructTimespec nsecZero2 = new StructTimespec(23, 0);
// Equal objects should have same hash code
assertEquals(allZero1.hashCode(), allZero2.hashCode());
assertEquals(val1.hashCode(), val2.hashCode());
assertEquals(secZero1.hashCode(), secZero2.hashCode());
assertEquals(nsecZero1.hashCode(), nsecZero2.hashCode());
}
}
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