/*
* 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.harmony.tests.java.util;
import java.io.Serializable;
import java.util.Arrays;
import java.util.Comparator;
import java.util.List;
import java.util.RandomAccess;
import junit.framework.TestCase;
import org.apache.harmony.testframework.serialization.SerializationTest;
public class Arrays2Test extends TestCase {
/**
* java.util.Arrays#binarySearch(double[], double)
*/
public void test_binarySearch$DD() {
double[] specials = new double[] { Double.NEGATIVE_INFINITY,
-Double.MAX_VALUE, -2d, -Double.MIN_VALUE, -0d, 0d,
Double.MIN_VALUE, 2d, Double.MAX_VALUE,
Double.POSITIVE_INFINITY, Double.NaN };
for (int i = 0; i < specials.length; i++) {
int result = Arrays.binarySearch(specials, specials[i]);
assertTrue("Assert 0: " + specials[i] + " invalid: " + result,
result == i);
}
assertEquals("Assert 1: Invalid search index for -1d",
-4, Arrays.binarySearch(specials, -1d));
assertEquals("Assert 2: Invalid search index for 1d",
-8, Arrays.binarySearch(specials, 1d));
}
/**
* java.util.Arrays#binarySearch(float[], float)
*/
public void test_binarySearch$FF() {
float[] specials = new float[] { Float.NEGATIVE_INFINITY,
-Float.MAX_VALUE, -2f, -Float.MIN_VALUE, -0f, 0f,
Float.MIN_VALUE, 2f, Float.MAX_VALUE, Float.POSITIVE_INFINITY,
Float.NaN };
for (int i = 0; i < specials.length; i++) {
int result = Arrays.binarySearch(specials, specials[i]);
assertTrue("Assert 0: " + specials[i] + " invalid: " + result,
result == i);
}
assertEquals("Assert 1: Invalid search index for -1f",
-4, Arrays.binarySearch(specials, -1f));
assertEquals("Assert 2: Invalid search index for 1f",
-8, Arrays.binarySearch(specials, 1f));
}
/**
* java.util.Arrays#equals(double[], double[])
*/
public void test_equals$D$D() {
double d[] = new double[100];
double x[] = new double[100];
Arrays.fill(d, Double.MAX_VALUE);
Arrays.fill(x, Double.MIN_VALUE);
assertTrue("Assert 0: Inequal arrays returned true", !Arrays.equals(d, x));
Arrays.fill(x, Double.MAX_VALUE);
assertTrue("Assert 1: equal arrays returned false", Arrays.equals(d, x));
assertTrue("Assert 2: should be false",
!Arrays.equals(new double[] { 1.0 }, new double[] { 2.0 }));
assertTrue("Assert 3: NaN not equals",
Arrays.equals(new double[] { Double.NaN }, new double[] { Double.NaN }));
assertTrue("Assert 4: 0d equals -0d",
!Arrays.equals(new double[] { 0d }, new double[] { -0d }));
}
/**
* java.util.Arrays#equals(float[], float[])
*/
public void test_equals$F$F() {
float d[] = new float[100];
float x[] = new float[100];
Arrays.fill(d, Float.MAX_VALUE);
Arrays.fill(x, Float.MIN_VALUE);
assertTrue("Assert 0: Inequal arrays returned true", !Arrays.equals(d, x));
Arrays.fill(x, Float.MAX_VALUE);
assertTrue("Assert 1: equal arrays returned false", Arrays.equals(d, x));
assertTrue("Assert 2: NaN not equals",
Arrays.equals(new float[] { Float.NaN }, new float[] { Float.NaN }));
assertTrue("Assert 3: 0f equals -0f",
!Arrays.equals(new float[] { 0f }, new float[] { -0f }));
}
/**
* java.util.Arrays#sort(double[])
*/
public void test_sort$D() {
// Test a basic sort
double[] reversedArray = new double[100];
for (int counter = 0; counter < reversedArray.length; counter++) {
reversedArray[counter] = (reversedArray.length - counter - 1);
}
Arrays.sort(reversedArray);
for (int counter = 0; counter < reversedArray.length; counter++) {
assertTrue("Assert 0: Resulting array not sorted",
reversedArray[counter] == counter);
}
// These have to sort as per the Double compare ordering
double[] specials1 = new double[] { Double.NaN, Double.MAX_VALUE, Double.MIN_VALUE, 0d, -0d, Double.POSITIVE_INFINITY, Double.NEGATIVE_INFINITY };
double[] specials2 = new double[] { 0d, Double.POSITIVE_INFINITY, -0d, Double.NEGATIVE_INFINITY, Double.MIN_VALUE, Double.NaN, Double.MAX_VALUE };
double[] answer = new double[] { Double.NEGATIVE_INFINITY, -0d, 0d, Double.MIN_VALUE, Double.MAX_VALUE, Double.POSITIVE_INFINITY, Double.NaN };
Arrays.sort(specials1);
Object[] print1 = new Object[specials1.length];
for (int i = 0; i < specials1.length; i++) {
print1[i] = new Double(specials1[i]);
}
assertTrue("Assert 1: specials sort incorrectly" + Arrays.asList(print1),
Arrays.equals(specials1, answer));
Arrays.sort(specials2);
Object[] print2 = new Object[specials2.length];
for (int i = 0; i < specials2.length; i++) {
print2[i] = new Double(specials2[i]);
}
assertTrue("Assert 2: specials sort incorrectly " + Arrays.asList(print2),
Arrays.equals(specials2, answer));
}
/**
* java.util.Arrays#sort(float[])
*/
public void test_sort$F() {
// Test a basic sort
float[] reversedArray = new float[100];
for (int counter = 0; counter < reversedArray.length; counter++) {
reversedArray[counter] = (reversedArray.length - counter - 1);
}
Arrays.sort(reversedArray);
for (int counter = 0; counter < reversedArray.length; counter++) {
assertTrue("Assert 0: Resulting array not sorted",
reversedArray[counter] == counter);
}
float[] specials1 = new float[] { Float.NaN, Float.MAX_VALUE, Float.MIN_VALUE, 0f, -0f, Float.POSITIVE_INFINITY, Float.NEGATIVE_INFINITY };
float[] specials2 = new float[] { 0f, Float.POSITIVE_INFINITY, -0f, Float.NEGATIVE_INFINITY, Float.MIN_VALUE, Float.NaN, Float.MAX_VALUE };
float[] answer = new float[] { Float.NEGATIVE_INFINITY, -0f, 0f, Float.MIN_VALUE, Float.MAX_VALUE, Float.POSITIVE_INFINITY, Float.NaN };
Arrays.sort(specials1);
Object[] print1 = new Object[specials1.length];
for (int i = 0; i < specials1.length; i++) {
print1[i] = new Float(specials1[i]);
}
assertTrue("Assert 1: specials sort incorrectly" + Arrays.asList(print1),
Arrays.equals(specials1, answer));
Arrays.sort(specials2);
Object[] print2 = new Object[specials2.length];
for (int i = 0; i < specials2.length; i++) {
print2[i] = new Float(specials2[i]);
}
assertTrue("Assert 2: specials sort incorrectly" + Arrays.asList(print2),
Arrays.equals(specials2, answer));
}
/**
* java.util.Arrays#toString(boolean[])
*/
public void test_toString$Z() {
assertEquals("null", Arrays.toString((boolean[]) null));
assertEquals("[]", Arrays.toString(new boolean[] { }));
assertEquals("[true]", Arrays.toString(new boolean[] { true }));
assertEquals("[true, false]", Arrays.toString(new boolean[] { true, false }));
assertEquals("[true, false, true]", Arrays.toString(new boolean[] { true, false, true }));
}
/**
* java.util.Arrays#toString(byte[])
*/
public void test_toString$B() {
assertEquals("null", Arrays.toString((byte[]) null));
assertEquals("[]", Arrays.toString(new byte[] { }));
assertEquals("[0]", Arrays.toString(new byte[] { 0 }));
assertEquals("[-1, 0]", Arrays.toString(new byte[] { -1, 0 }));
assertEquals("[-1, 0, 1]", Arrays.toString(new byte[] { -1, 0, 1 }));
}
/**
* java.util.Arrays#toString(char[])
*/
public void test_toString$C() {
assertEquals("null", Arrays.toString((char[]) null));
assertEquals("[]", Arrays.toString(new char[] { }));
assertEquals("[a]", Arrays.toString(new char[] { 'a' }));
assertEquals("[a, b]", Arrays.toString(new char[] { 'a', 'b' }));
assertEquals("[a, b, c]", Arrays.toString(new char[] { 'a', 'b', 'c' }));
}
/**
* java.util.Arrays#toString(double[])
*/
public void test_toString$D() {
assertEquals("null", Arrays.toString((double[]) null));
assertEquals("[]", Arrays.toString(new double[] { }));
assertEquals("[0.0]", Arrays.toString(new double[] { 0.0D }));
assertEquals("[-1.0, 0.0]", Arrays.toString(new double[] { -1.0D, 0.0D }));
assertEquals("[-1.0, 0.0, 1.0]", Arrays.toString(new double[] { -1.0D, 0.0D, 1.0D }));
}
/**
* java.util.Arrays#toString(float[])
*/
public void test_toString$F() {
assertEquals("null", Arrays.toString((float[]) null));
assertEquals("[]", Arrays.toString(new float[] { }));
assertEquals("[0.0]", Arrays.toString(new float[] { 0.0F }));
assertEquals("[-1.0, 0.0]", Arrays.toString(new float[] { -1.0F, 0.0F }));
assertEquals("[-1.0, 0.0, 1.0]", Arrays.toString(new float[] { -1.0F, 0.0F, 1.0F }));
}
/**
* java.util.Arrays#toString(int[])
*/
public void test_toString$I() {
assertEquals("null", Arrays.toString((int[]) null));
assertEquals("[]", Arrays.toString(new int[] { }));
assertEquals("[0]", Arrays.toString(new int[] { 0 }));
assertEquals("[-1, 0]", Arrays.toString(new int[] { -1, 0 }));
assertEquals("[-1, 0, 1]", Arrays.toString(new int[] { -1, 0, 1 }));
}
/**
* java.util.Arrays#toString(long[])
*/
public void test_toString$J() {
assertEquals("null", Arrays.toString((long[]) null));
assertEquals("[]", Arrays.toString(new long[] { }));
assertEquals("[0]", Arrays.toString(new long[] { 0 }));
assertEquals("[-1, 0]", Arrays.toString(new long[] { -1, 0 }));
assertEquals("[-1, 0, 1]", Arrays.toString(new long[] { -1, 0, 1 }));
}
/**
* java.util.Arrays#toString(short[])
*/
public void test_toString$S() {
assertEquals("null", Arrays.toString((short[]) null));
assertEquals("[]", Arrays.toString(new short[] { }));
assertEquals("[0]", Arrays.toString(new short[] { 0 }));
assertEquals("[-1, 0]", Arrays.toString(new short[] { -1, 0 }));
assertEquals("[-1, 0, 1]", Arrays.toString(new short[] { -1, 0, 1 }));
}
/**
* java.util.Arrays#toString(Object[])
*/
public void test_toString$Ljava_lang_Object() {
assertEquals("null", Arrays.toString((Object[]) null));
assertEquals("[]", Arrays.toString(new Object[] { }));
assertEquals("[fixture]", Arrays.toString(new Object[] { "fixture" }));
assertEquals("[fixture, null]", Arrays.toString(new Object[] { "fixture", null }));
assertEquals("[fixture, null, fixture]", Arrays.toString(new Object[] { "fixture", null, "fixture" }));
}
/**
* java.util.Arrays#deepToString(Object[])
*/
public void test_deepToString$java_lang_Object() {
assertEquals("null", Arrays.deepToString((Object[]) null));
assertEquals("[]", Arrays.deepToString(new Object[] { }));
assertEquals("[fixture]", Arrays.deepToString(new Object[] { "fixture" }));
assertEquals("[fixture, null]", Arrays.deepToString(new Object[] { "fixture", null }));
assertEquals("[fixture, null, fixture]", Arrays.deepToString(new Object[] { "fixture", null, "fixture" }));
Object[] fixture = new Object[1];
fixture[0] = fixture;
assertEquals("[[...]]", Arrays.deepToString(fixture));
fixture = new Object[2];
fixture[0] = "fixture";
fixture[1] = fixture;
assertEquals("[fixture, [...]]", Arrays.deepToString(fixture));
fixture = new Object[10];
fixture[0] = new boolean[] { true, false };
fixture[1] = new byte[] { 0, 1 };
fixture[2] = new char[] { 'a', 'b' };
fixture[3] = new double[] { 0.0D, 1.0D };
fixture[4] = new float[] { 0.0F, 1.0F };
fixture[5] = new int[] { 0, 1 };
fixture[6] = new long[] { 0L, 1L };
fixture[7] = new short[] { 0, 1 };
fixture[8] = fixture[0];
fixture[9] = new Object[9];
((Object[]) fixture[9])[0] = fixture;
((Object[]) fixture[9])[1] = fixture[1];
((Object[]) fixture[9])[2] = fixture[2];
((Object[]) fixture[9])[3] = fixture[3];
((Object[]) fixture[9])[4] = fixture[4];
((Object[]) fixture[9])[5] = fixture[5];
((Object[]) fixture[9])[6] = fixture[6];
((Object[]) fixture[9])[7] = fixture[7];
Object[] innerFixture = new Object[4];
innerFixture[0] = "innerFixture0";
innerFixture[1] = innerFixture;
innerFixture[2] = fixture;
innerFixture[3] = "innerFixture3";
((Object[]) fixture[9])[8] = innerFixture;
String expected = "[[true, false], [0, 1], [a, b], [0.0, 1.0], [0.0, 1.0], [0, 1], [0, 1], [0, 1], [true, false], [[...], [0, 1], [a, b], [0.0, 1.0], [0.0, 1.0], [0, 1], [0, 1], [0, 1], [innerFixture0, [...], [...], innerFixture3]]]";
assertEquals(expected, Arrays.deepToString(fixture));
}
public void test_asListTvararg() throws Exception {
List<String> stringsList = Arrays.asList("0", "1");
assertEquals(2, stringsList.size());
assertEquals("0", stringsList.get(0));
assertEquals("1", stringsList.get(1));
assertTrue(stringsList instanceof RandomAccess);
assertTrue(stringsList instanceof Serializable);
assertEquals(stringsList, SerializationTest
.copySerializable((Serializable) stringsList));
//test from javadoc
List<String> stooges = Arrays.asList("Larry", "Moe", "Curly");
assertEquals(3, stooges.size());
assertEquals("Larry", stooges.get(0));
assertEquals("Moe", stooges.get(1));
assertEquals("Curly", stooges.get(2));
stringsList = Arrays.asList((String) null);
assertEquals(1, stringsList.size());
assertEquals((String) null, stringsList.get(0));
try {
Arrays.asList((Object[]) null);
fail("No NPE");
} catch (NullPointerException e) {
}
}
public void test_binarySearch$TTLjava_util_ComparatorsuperT() {
String[] strings = new String[] { "a", "B", "c", "D" };
Arrays.sort(strings, String.CASE_INSENSITIVE_ORDER);
assertEquals(0, Arrays.binarySearch(strings, "a",
String.CASE_INSENSITIVE_ORDER));
assertEquals(0, Arrays.binarySearch(strings, "A",
String.CASE_INSENSITIVE_ORDER));
assertEquals(1, Arrays.binarySearch(strings, "b",
String.CASE_INSENSITIVE_ORDER));
assertEquals(1, Arrays.binarySearch(strings, "B",
String.CASE_INSENSITIVE_ORDER));
assertEquals(2, Arrays.binarySearch(strings, "c",
String.CASE_INSENSITIVE_ORDER));
assertEquals(2, Arrays.binarySearch(strings, "C",
String.CASE_INSENSITIVE_ORDER));
assertEquals(3, Arrays.binarySearch(strings, "d",
String.CASE_INSENSITIVE_ORDER));
assertEquals(3, Arrays.binarySearch(strings, "D",
String.CASE_INSENSITIVE_ORDER));
assertTrue(Arrays.binarySearch(strings, "e",
String.CASE_INSENSITIVE_ORDER) < 0);
assertTrue(Arrays.binarySearch(strings, "" + ('A' - 1),
String.CASE_INSENSITIVE_ORDER) < 0);
//test with null comparator, which switches back to Comparable
Arrays.sort(strings, null);
//B, D, a, c
assertEquals(2, Arrays.binarySearch(strings, "a", (Comparator<String>) null));
assertEquals(-1, Arrays.binarySearch(strings, "A", (Comparator<String>) null));
assertEquals(-4, Arrays.binarySearch(strings, "b", (Comparator<String>) null));
assertEquals(0, Arrays.binarySearch(strings, "B", (Comparator<String>) null));
assertEquals(3, Arrays.binarySearch(strings, "c", (Comparator<String>) null));
assertEquals(-2, Arrays.binarySearch(strings, "C", (Comparator<String>) null));
assertEquals(-5, Arrays.binarySearch(strings, "d", (Comparator<String>) null));
assertEquals(1, Arrays.binarySearch(strings, "D", (Comparator<String>) null));
assertTrue(Arrays.binarySearch(strings, "e", null) < 0);
assertTrue(Arrays.binarySearch(strings, "" + ('A' - 1), null) < 0);
try {
Arrays.binarySearch((String[]) null, "A", String.CASE_INSENSITIVE_ORDER);
fail("No NPE");
} catch (NullPointerException e) {
}
try {
Arrays.binarySearch(strings, (String) null, String.CASE_INSENSITIVE_ORDER);
fail("No NPE");
} catch (NullPointerException e) {
}
try {
Arrays.binarySearch(strings, (String) null, (Comparator<String>) null);
fail("No NPE");
} catch (NullPointerException e) {
}
}
public void test_sort$TLjava_lang_ComparatorsuperT() {
String[] strings = new String[] { "a", "B", "c", "D" };
Arrays.sort(strings, String.CASE_INSENSITIVE_ORDER);
assertEquals("a", strings[0]);
assertEquals("B", strings[1]);
assertEquals("c", strings[2]);
assertEquals("D", strings[3]);
//test with null comparator, which switches back to Comparable
Arrays.sort(strings, null);
//B, D, a, c
assertEquals("B", strings[0]);
assertEquals("D", strings[1]);
assertEquals("a", strings[2]);
assertEquals("c", strings[3]);
try {
Arrays.sort((String[]) null, String.CASE_INSENSITIVE_ORDER);
fail("No NPE");
} catch (NullPointerException e) {
}
}
public void test_sort$TIILjava_lang_ComparatorsuperT() {
String[] strings = new String[] { "a", "B", "c", "D" };
Arrays.sort(strings, 0, strings.length, String.CASE_INSENSITIVE_ORDER);
assertEquals("a", strings[0]);
assertEquals("B", strings[1]);
assertEquals("c", strings[2]);
assertEquals("D", strings[3]);
//test with null comparator, which switches back to Comparable
Arrays.sort(strings, 0, strings.length, null);
//B, D, a, c
assertEquals("B", strings[0]);
assertEquals("D", strings[1]);
assertEquals("a", strings[2]);
assertEquals("c", strings[3]);
try {
Arrays.sort((String[]) null, String.CASE_INSENSITIVE_ORDER);
fail("No NPE");
} catch (NullPointerException e) {
}
}
}