guava/guava-gwt/test-super/com/google/common/primitives/super/com/google/common/primitives/IntsTest.java - toolchain/jack - Git at Google

 /*
  * Copyright (C) 2008 The Guava Authors
  *
  * 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 com.google.common.primitives;

 import com.google.common.annotations.GwtCompatible;
 import com.google.common.base.Converter;
 import com.google.common.collect.testing.Helpers;

 import junit.framework.TestCase;

 import java.util.Arrays;
 import java.util.Collection;
 import java.util.Collections;
 import java.util.Comparator;
 import java.util.List;

 /**
  * Unit test for {@link Ints}.
  *
  * @author Kevin Bourrillion
  */
 @GwtCompatible(emulated = true)
 @SuppressWarnings("cast") // redundant casts are intentional and harmless
 public class IntsTest extends TestCase {
   private static final int[] EMPTY = {};
   private static final int[] ARRAY1 = {(int) 1};
   private static final int[] ARRAY234
       = {(int) 2, (int) 3, (int) 4};

   private static final int LEAST = Integer.MIN_VALUE;
   private static final int GREATEST = Integer.MAX_VALUE;

   private static final int[] VALUES =
       { LEAST, (int) -1, (int) 0, (int) 1, GREATEST };

   public void testHashCode() {
     for (int value : VALUES) {
       assertEquals(((Integer) value).hashCode(), Ints.hashCode(value));
     }
   }

   public void testCheckedCast() {
     for (int value : VALUES) {
       assertEquals(value, Ints.checkedCast((long) value));
     }
     assertCastFails(GREATEST + 1L);
     assertCastFails(LEAST - 1L);
     assertCastFails(Long.MAX_VALUE);
     assertCastFails(Long.MIN_VALUE);
   }

   public void testSaturatedCast() {
     for (int value : VALUES) {
       assertEquals(value, Ints.saturatedCast((long) value));
     }
     assertEquals(GREATEST, Ints.saturatedCast(GREATEST + 1L));
     assertEquals(LEAST, Ints.saturatedCast(LEAST - 1L));
     assertEquals(GREATEST, Ints.saturatedCast(Long.MAX_VALUE));
     assertEquals(LEAST, Ints.saturatedCast(Long.MIN_VALUE));
   }

   private static void assertCastFails(long value) {
     try {
       Ints.checkedCast(value);
       fail("Cast to int should have failed: " + value);
     } catch (IllegalArgumentException ex) {
       assertTrue(value + " not found in exception text: " + ex.getMessage(),
           ex.getMessage().contains(String.valueOf(value)));
     }
   }

   public void testCompare() {
     for (int x : VALUES) {
       for (int y : VALUES) {
         // note: spec requires only that the sign is the same
         assertEquals(x + ", " + y,
                      Integer.valueOf(x).compareTo(y),
                      Ints.compare(x, y));
       }
     }
   }

   public void testContains() {
     assertFalse(Ints.contains(EMPTY, (int) 1));
     assertFalse(Ints.contains(ARRAY1, (int) 2));
     assertFalse(Ints.contains(ARRAY234, (int) 1));
     assertTrue(Ints.contains(new int[] {(int) -1}, (int) -1));
     assertTrue(Ints.contains(ARRAY234, (int) 2));
     assertTrue(Ints.contains(ARRAY234, (int) 3));
     assertTrue(Ints.contains(ARRAY234, (int) 4));
   }

   public void testIndexOf() {
     assertEquals(-1, Ints.indexOf(EMPTY, (int) 1));
     assertEquals(-1, Ints.indexOf(ARRAY1, (int) 2));
     assertEquals(-1, Ints.indexOf(ARRAY234, (int) 1));
     assertEquals(0, Ints.indexOf(
         new int[] {(int) -1}, (int) -1));
     assertEquals(0, Ints.indexOf(ARRAY234, (int) 2));
     assertEquals(1, Ints.indexOf(ARRAY234, (int) 3));
     assertEquals(2, Ints.indexOf(ARRAY234, (int) 4));
     assertEquals(1, Ints.indexOf(
         new int[] { (int) 2, (int) 3, (int) 2, (int) 3 },
         (int) 3));
   }

   public void testIndexOf_arrayTarget() {
     assertEquals(0, Ints.indexOf(EMPTY, EMPTY));
     assertEquals(0, Ints.indexOf(ARRAY234, EMPTY));
     assertEquals(-1, Ints.indexOf(EMPTY, ARRAY234));
     assertEquals(-1, Ints.indexOf(ARRAY234, ARRAY1));
     assertEquals(-1, Ints.indexOf(ARRAY1, ARRAY234));
     assertEquals(0, Ints.indexOf(ARRAY1, ARRAY1));
     assertEquals(0, Ints.indexOf(ARRAY234, ARRAY234));
     assertEquals(0, Ints.indexOf(
         ARRAY234, new int[] { (int) 2, (int) 3 }));
     assertEquals(1, Ints.indexOf(
         ARRAY234, new int[] { (int) 3, (int) 4 }));
     assertEquals(1, Ints.indexOf(ARRAY234, new int[] { (int) 3 }));
     assertEquals(2, Ints.indexOf(ARRAY234, new int[] { (int) 4 }));
     assertEquals(1, Ints.indexOf(new int[] { (int) 2, (int) 3,
         (int) 3, (int) 3, (int) 3 },
         new int[] { (int) 3 }
     ));
     assertEquals(2, Ints.indexOf(
         new int[] { (int) 2, (int) 3, (int) 2,
             (int) 3, (int) 4, (int) 2, (int) 3},
         new int[] { (int) 2, (int) 3, (int) 4}
     ));
     assertEquals(1, Ints.indexOf(
         new int[] { (int) 2, (int) 2, (int) 3,
             (int) 4, (int) 2, (int) 3, (int) 4},
         new int[] { (int) 2, (int) 3, (int) 4}
     ));
     assertEquals(-1, Ints.indexOf(
         new int[] { (int) 4, (int) 3, (int) 2},
         new int[] { (int) 2, (int) 3, (int) 4}
     ));
   }

   public void testLastIndexOf() {
     assertEquals(-1, Ints.lastIndexOf(EMPTY, (int) 1));
     assertEquals(-1, Ints.lastIndexOf(ARRAY1, (int) 2));
     assertEquals(-1, Ints.lastIndexOf(ARRAY234, (int) 1));
     assertEquals(0, Ints.lastIndexOf(
         new int[] {(int) -1}, (int) -1));
     assertEquals(0, Ints.lastIndexOf(ARRAY234, (int) 2));
     assertEquals(1, Ints.lastIndexOf(ARRAY234, (int) 3));
     assertEquals(2, Ints.lastIndexOf(ARRAY234, (int) 4));
     assertEquals(3, Ints.lastIndexOf(
         new int[] { (int) 2, (int) 3, (int) 2, (int) 3 },
         (int) 3));
   }

   public void testMax_noArgs() {
     try {
       Ints.max();
       fail();
     } catch (IllegalArgumentException expected) {
     }
   }

   public void testMax() {
     assertEquals(LEAST, Ints.max(LEAST));
     assertEquals(GREATEST, Ints.max(GREATEST));
     assertEquals((int) 9, Ints.max(
         (int) 8, (int) 6, (int) 7,
         (int) 5, (int) 3, (int) 0, (int) 9));
   }

   public void testMin_noArgs() {
     try {
       Ints.min();
       fail();
     } catch (IllegalArgumentException expected) {
     }
   }

   public void testMin() {
     assertEquals(LEAST, Ints.min(LEAST));
     assertEquals(GREATEST, Ints.min(GREATEST));
     assertEquals((int) 0, Ints.min(
         (int) 8, (int) 6, (int) 7,
         (int) 5, (int) 3, (int) 0, (int) 9));
   }

   public void testConcat() {
     assertTrue(Arrays.equals(EMPTY, Ints.concat()));
     assertTrue(Arrays.equals(EMPTY, Ints.concat(EMPTY)));
     assertTrue(Arrays.equals(EMPTY, Ints.concat(EMPTY, EMPTY, EMPTY)));
     assertTrue(Arrays.equals(ARRAY1, Ints.concat(ARRAY1)));
     assertNotSame(ARRAY1, Ints.concat(ARRAY1));
     assertTrue(Arrays.equals(ARRAY1, Ints.concat(EMPTY, ARRAY1, EMPTY)));
     assertTrue(Arrays.equals(
         new int[] {(int) 1, (int) 1, (int) 1},
         Ints.concat(ARRAY1, ARRAY1, ARRAY1)));
     assertTrue(Arrays.equals(
         new int[] {(int) 1, (int) 2, (int) 3, (int) 4},
         Ints.concat(ARRAY1, ARRAY234)));
   }

   public void testEnsureCapacity() {
     assertSame(EMPTY, Ints.ensureCapacity(EMPTY, 0, 1));
     assertSame(ARRAY1, Ints.ensureCapacity(ARRAY1, 0, 1));
     assertSame(ARRAY1, Ints.ensureCapacity(ARRAY1, 1, 1));
     assertTrue(Arrays.equals(
         new int[] {(int) 1, (int) 0, (int) 0},
         Ints.ensureCapacity(ARRAY1, 2, 1)));
   }

   public void testEnsureCapacity_fail() {
     try {
       Ints.ensureCapacity(ARRAY1, -1, 1);
       fail();
     } catch (IllegalArgumentException expected) {
     }
     try {
       // notice that this should even fail when no growth was needed
       Ints.ensureCapacity(ARRAY1, 1, -1);
       fail();
     } catch (IllegalArgumentException expected) {
     }
   }

   public void testJoin() {
     assertEquals("", Ints.join(",", EMPTY));
     assertEquals("1", Ints.join(",", ARRAY1));
     assertEquals("1,2", Ints.join(",", (int) 1, (int) 2));
     assertEquals("123",
         Ints.join("", (int) 1, (int) 2, (int) 3));
   }

   public void testLexicographicalComparator() {
     List<int[]> ordered = Arrays.asList(
         new int[] {},
         new int[] {LEAST},
         new int[] {LEAST, LEAST},
         new int[] {LEAST, (int) 1},
         new int[] {(int) 1},
         new int[] {(int) 1, LEAST},
         new int[] {GREATEST, GREATEST - (int) 1},
         new int[] {GREATEST, GREATEST},
         new int[] {GREATEST, GREATEST, GREATEST});

     Comparator<int[]> comparator = Ints.lexicographicalComparator();
     Helpers.testComparator(comparator, ordered);
   }

   public void testToArray() {
     // need explicit type parameter to avoid javac warning!?
     List<Integer> none = Arrays.<Integer>asList();
     assertTrue(Arrays.equals(EMPTY, Ints.toArray(none)));

     List<Integer> one = Arrays.asList((int) 1);
     assertTrue(Arrays.equals(ARRAY1, Ints.toArray(one)));

     int[] array = {(int) 0, (int) 1, (int) 0xdeadbeef};

     List<Integer> three = Arrays.asList((int) 0, (int) 1, (int) 0xdeadbeef);
     assertTrue(Arrays.equals(array, Ints.toArray(three)));

     assertTrue(Arrays.equals(array, Ints.toArray(Ints.asList(array))));
   }

   public void testToArray_threadSafe() {
     for (int delta : new int[] { +1, 0, -1 }) {
       for (int i = 0; i < VALUES.length; i++) {
         List<Integer> list = Ints.asList(VALUES).subList(0, i);
         Collection<Integer> misleadingSize =
             Helpers.misleadingSizeCollection(delta);
         misleadingSize.addAll(list);
         int[] arr = Ints.toArray(misleadingSize);
         assertEquals(i, arr.length);
         for (int j = 0; j < i; j++) {
           assertEquals(VALUES[j], arr[j]);
         }
       }
     }
   }

   public void testToArray_withNull() {
     List<Integer> list = Arrays.asList((int) 0, (int) 1, null);
     try {
       Ints.toArray(list);
       fail();
     } catch (NullPointerException expected) {
     }
   }

   public void testToArray_withConversion() {
     int[] array = {0, 1, 2};

     List<Byte> bytes = Arrays.asList((byte) 0, (byte) 1, (byte) 2);
     List<Short> shorts = Arrays.asList((short) 0, (short) 1, (short) 2);
     List<Integer> ints = Arrays.asList(0, 1, 2);
     List<Float> floats = Arrays.asList((float) 0, (float) 1, (float) 2);
     List<Long> longs = Arrays.asList((long) 0, (long) 1, (long) 2);
     List<Double> doubles = Arrays.asList((double) 0, (double) 1, (double) 2);

     assertTrue(Arrays.equals(array, Ints.toArray(bytes)));
     assertTrue(Arrays.equals(array, Ints.toArray(shorts)));
     assertTrue(Arrays.equals(array, Ints.toArray(ints)));
     assertTrue(Arrays.equals(array, Ints.toArray(floats)));
     assertTrue(Arrays.equals(array, Ints.toArray(longs)));
     assertTrue(Arrays.equals(array, Ints.toArray(doubles)));
   }

   public void testAsList_isAView() {
     int[] array = {(int) 0, (int) 1};
     List<Integer> list = Ints.asList(array);
     list.set(0, (int) 2);
     assertTrue(Arrays.equals(new int[] {(int) 2, (int) 1}, array));
     array[1] = (int) 3;
     assertEquals(Arrays.asList((int) 2, (int) 3), list);
   }

   public void testAsList_toArray_roundTrip() {
     int[] array = { (int) 0, (int) 1, (int) 2 };
     List<Integer> list = Ints.asList(array);
     int[] newArray = Ints.toArray(list);

     // Make sure it returned a copy
     list.set(0, (int) 4);
     assertTrue(Arrays.equals(
         new int[] { (int) 0, (int) 1, (int) 2 }, newArray));
     newArray[1] = (int) 5;
     assertEquals((int) 1, (int) list.get(1));
   }

   // This test stems from a real bug found by andrewk
   public void testAsList_subList_toArray_roundTrip() {
     int[] array = { (int) 0, (int) 1, (int) 2, (int) 3 };
     List<Integer> list = Ints.asList(array);
     assertTrue(Arrays.equals(new int[] { (int) 1, (int) 2 },
         Ints.toArray(list.subList(1, 3))));
     assertTrue(Arrays.equals(new int[] {},
         Ints.toArray(list.subList(2, 2))));
   }

   public void testAsListEmpty() {
     assertSame(Collections.emptyList(), Ints.asList(EMPTY));
   }

   public void testStringConverter_convert() {
     Converter<String, Integer> converter = Ints.stringConverter();
     assertEquals((Integer) 1, converter.convert("1"));
     assertEquals((Integer) 0, converter.convert("0"));
     assertEquals((Integer) (-1), converter.convert("-1"));
     assertEquals((Integer) 255, converter.convert("0xff"));
     assertEquals((Integer) 255, converter.convert("0xFF"));
     assertEquals((Integer) (-255), converter.convert("-0xFF"));
     assertEquals((Integer) 255, converter.convert("#0000FF"));
     assertEquals((Integer) 438, converter.convert("0666"));
   }

   public void testStringConverter_convertError() {
     try {
       Ints.stringConverter().convert("notanumber");
       fail();
     } catch (NumberFormatException expected) {
     }
   }

   public void testStringConverter_nullConversions() {
     assertNull(Ints.stringConverter().convert(null));
     assertNull(Ints.stringConverter().reverse().convert(null));
   }

   public void testStringConverter_reverse() {
     Converter<String, Integer> converter = Ints.stringConverter();
     assertEquals("1", converter.reverse().convert(1));
     assertEquals("0", converter.reverse().convert(0));
     assertEquals("-1", converter.reverse().convert(-1));
     assertEquals("255", converter.reverse().convert(0xff));
     assertEquals("255", converter.reverse().convert(0xFF));
     assertEquals("-255", converter.reverse().convert(-0xFF));
     assertEquals("438", converter.reverse().convert(0666));
   }

   public void testTryParse() {
     tryParseAndAssertEquals(0, "0");
     tryParseAndAssertEquals(0, "-0");
     tryParseAndAssertEquals(1, "1");
     tryParseAndAssertEquals(-1, "-1");
     tryParseAndAssertEquals(8900, "8900");
     tryParseAndAssertEquals(-8900, "-8900");
     tryParseAndAssertEquals(GREATEST, Integer.toString(GREATEST));
     tryParseAndAssertEquals(LEAST, Integer.toString(LEAST));
     assertNull(Ints.tryParse(""));
     assertNull(Ints.tryParse("-"));
     assertNull(Ints.tryParse("+1"));
     assertNull(Ints.tryParse("9999999999999999"));
     assertNull("Max integer + 1",
         Ints.tryParse(Long.toString(((long) GREATEST) + 1)));
     assertNull("Max integer * 10",
         Ints.tryParse(Long.toString(((long) GREATEST) * 10)));
     assertNull("Min integer - 1",
         Ints.tryParse(Long.toString(((long) LEAST) - 1)));
     assertNull("Min integer * 10",
         Ints.tryParse(Long.toString(((long) LEAST) * 10)));
     assertNull("Max long", Ints.tryParse(Long.toString(Long.MAX_VALUE)));
     assertNull("Min long", Ints.tryParse(Long.toString(Long.MIN_VALUE)));
     assertNull(Ints.tryParse("\u0662\u06f3"));
   }

   /**
    * Applies {@link Ints#tryParse(String)} to the given string and asserts that
    * the result is as expected.
    */
   private static void tryParseAndAssertEquals(Integer expected, String value) {
     assertEquals(expected, Ints.tryParse(value));
   }
 }
	/*
	* Copyright (C) 2008 The Guava Authors
	*
	* 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 com.google.common.primitives;

	import com.google.common.annotations.GwtCompatible;
	import com.google.common.base.Converter;
	import com.google.common.collect.testing.Helpers;

	import junit.framework.TestCase;

	import java.util.Arrays;
	import java.util.Collection;
	import java.util.Collections;
	import java.util.Comparator;
	import java.util.List;

	/**
	* Unit test for {@link Ints}.
	*
	* @author Kevin Bourrillion
	*/
	@GwtCompatible(emulated = true)
	@SuppressWarnings("cast") // redundant casts are intentional and harmless
	public class IntsTest extends TestCase {
	private static final int[] EMPTY = {};
	private static final int[] ARRAY1 = {(int) 1};
	private static final int[] ARRAY234
	= {(int) 2, (int) 3, (int) 4};

	private static final int LEAST = Integer.MIN_VALUE;
	private static final int GREATEST = Integer.MAX_VALUE;

	private static final int[] VALUES =
	{ LEAST, (int) -1, (int) 0, (int) 1, GREATEST };

	public void testHashCode() {
	for (int value : VALUES) {
	assertEquals(((Integer) value).hashCode(), Ints.hashCode(value));
	}
	}

	public void testCheckedCast() {
	for (int value : VALUES) {
	assertEquals(value, Ints.checkedCast((long) value));
	}
	assertCastFails(GREATEST + 1L);
	assertCastFails(LEAST - 1L);
	assertCastFails(Long.MAX_VALUE);
	assertCastFails(Long.MIN_VALUE);
	}

	public void testSaturatedCast() {
	for (int value : VALUES) {
	assertEquals(value, Ints.saturatedCast((long) value));
	}
	assertEquals(GREATEST, Ints.saturatedCast(GREATEST + 1L));
	assertEquals(LEAST, Ints.saturatedCast(LEAST - 1L));
	assertEquals(GREATEST, Ints.saturatedCast(Long.MAX_VALUE));
	assertEquals(LEAST, Ints.saturatedCast(Long.MIN_VALUE));
	}

	private static void assertCastFails(long value) {
	try {
	Ints.checkedCast(value);
	fail("Cast to int should have failed: " + value);
	} catch (IllegalArgumentException ex) {
	assertTrue(value + " not found in exception text: " + ex.getMessage(),
	ex.getMessage().contains(String.valueOf(value)));
	}
	}

	public void testCompare() {
	for (int x : VALUES) {
	for (int y : VALUES) {
	// note: spec requires only that the sign is the same
	assertEquals(x + ", " + y,
	Integer.valueOf(x).compareTo(y),
	Ints.compare(x, y));
	}
	}
	}

	public void testContains() {
	assertFalse(Ints.contains(EMPTY, (int) 1));
	assertFalse(Ints.contains(ARRAY1, (int) 2));
	assertFalse(Ints.contains(ARRAY234, (int) 1));
	assertTrue(Ints.contains(new int[] {(int) -1}, (int) -1));
	assertTrue(Ints.contains(ARRAY234, (int) 2));
	assertTrue(Ints.contains(ARRAY234, (int) 3));
	assertTrue(Ints.contains(ARRAY234, (int) 4));
	}

	public void testIndexOf() {
	assertEquals(-1, Ints.indexOf(EMPTY, (int) 1));
	assertEquals(-1, Ints.indexOf(ARRAY1, (int) 2));
	assertEquals(-1, Ints.indexOf(ARRAY234, (int) 1));
	assertEquals(0, Ints.indexOf(
	new int[] {(int) -1}, (int) -1));
	assertEquals(0, Ints.indexOf(ARRAY234, (int) 2));
	assertEquals(1, Ints.indexOf(ARRAY234, (int) 3));
	assertEquals(2, Ints.indexOf(ARRAY234, (int) 4));
	assertEquals(1, Ints.indexOf(
	new int[] { (int) 2, (int) 3, (int) 2, (int) 3 },
	(int) 3));
	}

	public void testIndexOf_arrayTarget() {
	assertEquals(0, Ints.indexOf(EMPTY, EMPTY));
	assertEquals(0, Ints.indexOf(ARRAY234, EMPTY));
	assertEquals(-1, Ints.indexOf(EMPTY, ARRAY234));
	assertEquals(-1, Ints.indexOf(ARRAY234, ARRAY1));
	assertEquals(-1, Ints.indexOf(ARRAY1, ARRAY234));
	assertEquals(0, Ints.indexOf(ARRAY1, ARRAY1));
	assertEquals(0, Ints.indexOf(ARRAY234, ARRAY234));
	assertEquals(0, Ints.indexOf(
	ARRAY234, new int[] { (int) 2, (int) 3 }));
	assertEquals(1, Ints.indexOf(
	ARRAY234, new int[] { (int) 3, (int) 4 }));
	assertEquals(1, Ints.indexOf(ARRAY234, new int[] { (int) 3 }));
	assertEquals(2, Ints.indexOf(ARRAY234, new int[] { (int) 4 }));
	assertEquals(1, Ints.indexOf(new int[] { (int) 2, (int) 3,
	(int) 3, (int) 3, (int) 3 },
	new int[] { (int) 3 }
	));
	assertEquals(2, Ints.indexOf(
	new int[] { (int) 2, (int) 3, (int) 2,
	(int) 3, (int) 4, (int) 2, (int) 3},
	new int[] { (int) 2, (int) 3, (int) 4}
	));
	assertEquals(1, Ints.indexOf(
	new int[] { (int) 2, (int) 2, (int) 3,
	(int) 4, (int) 2, (int) 3, (int) 4},
	new int[] { (int) 2, (int) 3, (int) 4}
	));
	assertEquals(-1, Ints.indexOf(
	new int[] { (int) 4, (int) 3, (int) 2},
	new int[] { (int) 2, (int) 3, (int) 4}
	));
	}

	public void testLastIndexOf() {
	assertEquals(-1, Ints.lastIndexOf(EMPTY, (int) 1));
	assertEquals(-1, Ints.lastIndexOf(ARRAY1, (int) 2));
	assertEquals(-1, Ints.lastIndexOf(ARRAY234, (int) 1));
	assertEquals(0, Ints.lastIndexOf(
	new int[] {(int) -1}, (int) -1));
	assertEquals(0, Ints.lastIndexOf(ARRAY234, (int) 2));
	assertEquals(1, Ints.lastIndexOf(ARRAY234, (int) 3));
	assertEquals(2, Ints.lastIndexOf(ARRAY234, (int) 4));
	assertEquals(3, Ints.lastIndexOf(
	new int[] { (int) 2, (int) 3, (int) 2, (int) 3 },
	(int) 3));
	}

	public void testMax_noArgs() {
	try {
	Ints.max();
	fail();
	} catch (IllegalArgumentException expected) {
	}
	}

	public void testMax() {
	assertEquals(LEAST, Ints.max(LEAST));
	assertEquals(GREATEST, Ints.max(GREATEST));
	assertEquals((int) 9, Ints.max(
	(int) 8, (int) 6, (int) 7,
	(int) 5, (int) 3, (int) 0, (int) 9));
	}

	public void testMin_noArgs() {
	try {
	Ints.min();
	fail();
	} catch (IllegalArgumentException expected) {
	}
	}

	public void testMin() {
	assertEquals(LEAST, Ints.min(LEAST));
	assertEquals(GREATEST, Ints.min(GREATEST));
	assertEquals((int) 0, Ints.min(
	(int) 8, (int) 6, (int) 7,
	(int) 5, (int) 3, (int) 0, (int) 9));
	}

	public void testConcat() {
	assertTrue(Arrays.equals(EMPTY, Ints.concat()));
	assertTrue(Arrays.equals(EMPTY, Ints.concat(EMPTY)));
	assertTrue(Arrays.equals(EMPTY, Ints.concat(EMPTY, EMPTY, EMPTY)));
	assertTrue(Arrays.equals(ARRAY1, Ints.concat(ARRAY1)));
	assertNotSame(ARRAY1, Ints.concat(ARRAY1));
	assertTrue(Arrays.equals(ARRAY1, Ints.concat(EMPTY, ARRAY1, EMPTY)));
	assertTrue(Arrays.equals(
	new int[] {(int) 1, (int) 1, (int) 1},
	Ints.concat(ARRAY1, ARRAY1, ARRAY1)));
	assertTrue(Arrays.equals(
	new int[] {(int) 1, (int) 2, (int) 3, (int) 4},
	Ints.concat(ARRAY1, ARRAY234)));
	}

	public void testEnsureCapacity() {
	assertSame(EMPTY, Ints.ensureCapacity(EMPTY, 0, 1));
	assertSame(ARRAY1, Ints.ensureCapacity(ARRAY1, 0, 1));
	assertSame(ARRAY1, Ints.ensureCapacity(ARRAY1, 1, 1));
	assertTrue(Arrays.equals(
	new int[] {(int) 1, (int) 0, (int) 0},
	Ints.ensureCapacity(ARRAY1, 2, 1)));
	}

	public void testEnsureCapacity_fail() {
	try {
	Ints.ensureCapacity(ARRAY1, -1, 1);
	fail();
	} catch (IllegalArgumentException expected) {
	}
	try {
	// notice that this should even fail when no growth was needed
	Ints.ensureCapacity(ARRAY1, 1, -1);
	fail();
	} catch (IllegalArgumentException expected) {
	}
	}

	public void testJoin() {
	assertEquals("", Ints.join(",", EMPTY));
	assertEquals("1", Ints.join(",", ARRAY1));
	assertEquals("1,2", Ints.join(",", (int) 1, (int) 2));
	assertEquals("123",
	Ints.join("", (int) 1, (int) 2, (int) 3));
	}

	public void testLexicographicalComparator() {
	List<int[]> ordered = Arrays.asList(
	new int[] {},
	new int[] {LEAST},
	new int[] {LEAST, LEAST},
	new int[] {LEAST, (int) 1},
	new int[] {(int) 1},
	new int[] {(int) 1, LEAST},
	new int[] {GREATEST, GREATEST - (int) 1},
	new int[] {GREATEST, GREATEST},
	new int[] {GREATEST, GREATEST, GREATEST});

	Comparator<int[]> comparator = Ints.lexicographicalComparator();
	Helpers.testComparator(comparator, ordered);
	}

	public void testToArray() {
	// need explicit type parameter to avoid javac warning!?
	List<Integer> none = Arrays.<Integer>asList();
	assertTrue(Arrays.equals(EMPTY, Ints.toArray(none)));

	List<Integer> one = Arrays.asList((int) 1);
	assertTrue(Arrays.equals(ARRAY1, Ints.toArray(one)));

	int[] array = {(int) 0, (int) 1, (int) 0xdeadbeef};

	List<Integer> three = Arrays.asList((int) 0, (int) 1, (int) 0xdeadbeef);
	assertTrue(Arrays.equals(array, Ints.toArray(three)));

	assertTrue(Arrays.equals(array, Ints.toArray(Ints.asList(array))));
	}

	public void testToArray_threadSafe() {
	for (int delta : new int[] { +1, 0, -1 }) {
	for (int i = 0; i < VALUES.length; i++) {
	List<Integer> list = Ints.asList(VALUES).subList(0, i);
	Collection<Integer> misleadingSize =
	Helpers.misleadingSizeCollection(delta);
	misleadingSize.addAll(list);
	int[] arr = Ints.toArray(misleadingSize);
	assertEquals(i, arr.length);
	for (int j = 0; j < i; j++) {
	assertEquals(VALUES[j], arr[j]);
	}
	}
	}
	}

	public void testToArray_withNull() {
	List<Integer> list = Arrays.asList((int) 0, (int) 1, null);
	try {
	Ints.toArray(list);
	fail();
	} catch (NullPointerException expected) {
	}
	}

	public void testToArray_withConversion() {
	int[] array = {0, 1, 2};

	List<Byte> bytes = Arrays.asList((byte) 0, (byte) 1, (byte) 2);
	List<Short> shorts = Arrays.asList((short) 0, (short) 1, (short) 2);
	List<Integer> ints = Arrays.asList(0, 1, 2);
	List<Float> floats = Arrays.asList((float) 0, (float) 1, (float) 2);
	List<Long> longs = Arrays.asList((long) 0, (long) 1, (long) 2);
	List<Double> doubles = Arrays.asList((double) 0, (double) 1, (double) 2);

	assertTrue(Arrays.equals(array, Ints.toArray(bytes)));
	assertTrue(Arrays.equals(array, Ints.toArray(shorts)));
	assertTrue(Arrays.equals(array, Ints.toArray(ints)));
	assertTrue(Arrays.equals(array, Ints.toArray(floats)));
	assertTrue(Arrays.equals(array, Ints.toArray(longs)));
	assertTrue(Arrays.equals(array, Ints.toArray(doubles)));
	}

	public void testAsList_isAView() {
	int[] array = {(int) 0, (int) 1};
	List<Integer> list = Ints.asList(array);
	list.set(0, (int) 2);
	assertTrue(Arrays.equals(new int[] {(int) 2, (int) 1}, array));
	array[1] = (int) 3;
	assertEquals(Arrays.asList((int) 2, (int) 3), list);
	}

	public void testAsList_toArray_roundTrip() {
	int[] array = { (int) 0, (int) 1, (int) 2 };
	List<Integer> list = Ints.asList(array);
	int[] newArray = Ints.toArray(list);

	// Make sure it returned a copy
	list.set(0, (int) 4);
	assertTrue(Arrays.equals(
	new int[] { (int) 0, (int) 1, (int) 2 }, newArray));
	newArray[1] = (int) 5;
	assertEquals((int) 1, (int) list.get(1));
	}

	// This test stems from a real bug found by andrewk
	public void testAsList_subList_toArray_roundTrip() {
	int[] array = { (int) 0, (int) 1, (int) 2, (int) 3 };
	List<Integer> list = Ints.asList(array);
	assertTrue(Arrays.equals(new int[] { (int) 1, (int) 2 },
	Ints.toArray(list.subList(1, 3))));
	assertTrue(Arrays.equals(new int[] {},
	Ints.toArray(list.subList(2, 2))));
	}

	public void testAsListEmpty() {
	assertSame(Collections.emptyList(), Ints.asList(EMPTY));
	}

	public void testStringConverter_convert() {
	Converter<String, Integer> converter = Ints.stringConverter();
	assertEquals((Integer) 1, converter.convert("1"));
	assertEquals((Integer) 0, converter.convert("0"));
	assertEquals((Integer) (-1), converter.convert("-1"));
	assertEquals((Integer) 255, converter.convert("0xff"));
	assertEquals((Integer) 255, converter.convert("0xFF"));
	assertEquals((Integer) (-255), converter.convert("-0xFF"));
	assertEquals((Integer) 255, converter.convert("#0000FF"));
	assertEquals((Integer) 438, converter.convert("0666"));
	}

	public void testStringConverter_convertError() {
	try {
	Ints.stringConverter().convert("notanumber");
	fail();
	} catch (NumberFormatException expected) {
	}
	}

	public void testStringConverter_nullConversions() {
	assertNull(Ints.stringConverter().convert(null));
	assertNull(Ints.stringConverter().reverse().convert(null));
	}

	public void testStringConverter_reverse() {
	Converter<String, Integer> converter = Ints.stringConverter();
	assertEquals("1", converter.reverse().convert(1));
	assertEquals("0", converter.reverse().convert(0));
	assertEquals("-1", converter.reverse().convert(-1));
	assertEquals("255", converter.reverse().convert(0xff));
	assertEquals("255", converter.reverse().convert(0xFF));
	assertEquals("-255", converter.reverse().convert(-0xFF));
	assertEquals("438", converter.reverse().convert(0666));
	}

	public void testTryParse() {
	tryParseAndAssertEquals(0, "0");
	tryParseAndAssertEquals(0, "-0");
	tryParseAndAssertEquals(1, "1");
	tryParseAndAssertEquals(-1, "-1");
	tryParseAndAssertEquals(8900, "8900");
	tryParseAndAssertEquals(-8900, "-8900");
	tryParseAndAssertEquals(GREATEST, Integer.toString(GREATEST));
	tryParseAndAssertEquals(LEAST, Integer.toString(LEAST));
	assertNull(Ints.tryParse(""));
	assertNull(Ints.tryParse("-"));
	assertNull(Ints.tryParse("+1"));
	assertNull(Ints.tryParse("9999999999999999"));
	assertNull("Max integer + 1",
	Ints.tryParse(Long.toString(((long) GREATEST) + 1)));
	assertNull("Max integer * 10",
	Ints.tryParse(Long.toString(((long) GREATEST) * 10)));
	assertNull("Min integer - 1",
	Ints.tryParse(Long.toString(((long) LEAST) - 1)));
	assertNull("Min integer * 10",
	Ints.tryParse(Long.toString(((long) LEAST) * 10)));
	assertNull("Max long", Ints.tryParse(Long.toString(Long.MAX_VALUE)));
	assertNull("Min long", Ints.tryParse(Long.toString(Long.MIN_VALUE)));
	assertNull(Ints.tryParse("\u0662\u06f3"));
	}

	/**
	* Applies {@link Ints#tryParse(String)} to the given string and asserts that
	* the result is as expected.
	*/
	private static void tryParseAndAssertEquals(Integer expected, String value) {
	assertEquals(expected, Ints.tryParse(value));
	}
	}