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Commit 2f5ebd08 authored by Eric Biggers's avatar Eric Biggers Committed by Android (Google) Code Review
Browse files

Merge "Consolidate ArrayUtilsTest into one file"

parents c85e43be 1434a426

core/tests/coretests/src/com/android/internal/util/ArrayUtilsTest.java

deleted100644 → 0
+0 −206
Original line number Diff line number Diff line 
/*

 * Copyright (C) 2016 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 com.android.internal.util;



import androidx.test.filters.SmallTest;



import junit.framework.TestCase;



import java.util.ArrayList;

import java.util.Arrays;

import java.util.Collections;



public class ArrayUtilsTest extends TestCase {



    @SmallTest

    public void testUnstableRemoveIf() throws Exception {

        java.util.function.Predicate<Object> isNull = new java.util.function.Predicate<Object>() {

            @Override

            public boolean test(Object o) {

                return o == null;

            }

        };



        final Object a = new Object();

        final Object b = new Object();

        final Object c = new Object();



        ArrayList<Object> collection = null;

        assertEquals(0, ArrayUtils.unstableRemoveIf(collection, isNull));



        collection = new ArrayList<>();

        assertEquals(0, ArrayUtils.unstableRemoveIf(collection, isNull));



        collection = new ArrayList<>(Collections.singletonList(a));

        assertEquals(0, ArrayUtils.unstableRemoveIf(collection, isNull));

        assertEquals(1, collection.size());

        assertTrue(collection.contains(a));



        collection = new ArrayList<>(Collections.singletonList(null));

        assertEquals(1, ArrayUtils.unstableRemoveIf(collection, isNull));

        assertEquals(0, collection.size());



        collection = new ArrayList<>(Arrays.asList(a, b));

        assertEquals(0, ArrayUtils.unstableRemoveIf(collection, isNull));

        assertEquals(2, collection.size());

        assertTrue(collection.contains(a));

        assertTrue(collection.contains(b));



        collection = new ArrayList<>(Arrays.asList(a, null));

        assertEquals(1, ArrayUtils.unstableRemoveIf(collection, isNull));

        assertEquals(1, collection.size());

        assertTrue(collection.contains(a));



        collection = new ArrayList<>(Arrays.asList(null, a));

        assertEquals(1, ArrayUtils.unstableRemoveIf(collection, isNull));

        assertEquals(1, collection.size());

        assertTrue(collection.contains(a));



        collection = new ArrayList<>(Arrays.asList(null, null));

        assertEquals(2, ArrayUtils.unstableRemoveIf(collection, isNull));

        assertEquals(0, collection.size());



        collection = new ArrayList<>(Arrays.asList(a, b, c));

        assertEquals(0, ArrayUtils.unstableRemoveIf(collection, isNull));

        assertEquals(3, collection.size());

        assertTrue(collection.contains(a));

        assertTrue(collection.contains(b));

        assertTrue(collection.contains(c));



        collection = new ArrayList<>(Arrays.asList(a, b, null));

        assertEquals(1, ArrayUtils.unstableRemoveIf(collection, isNull));

        assertEquals(2, collection.size());

        assertTrue(collection.contains(a));

        assertTrue(collection.contains(b));



        collection = new ArrayList<>(Arrays.asList(a, null, b));

        assertEquals(1, ArrayUtils.unstableRemoveIf(collection, isNull));

        assertEquals(2, collection.size());

        assertTrue(collection.contains(a));

        assertTrue(collection.contains(b));



        collection = new ArrayList<>(Arrays.asList(null, a, b));

        assertEquals(1, ArrayUtils.unstableRemoveIf(collection, isNull));

        assertEquals(2, collection.size());

        assertTrue(collection.contains(a));

        assertTrue(collection.contains(b));



        collection = new ArrayList<>(Arrays.asList(a, null, null));

        assertEquals(2, ArrayUtils.unstableRemoveIf(collection, isNull));

        assertEquals(1, collection.size());

        assertTrue(collection.contains(a));



        collection = new ArrayList<>(Arrays.asList(null, null, a));

        assertEquals(2, ArrayUtils.unstableRemoveIf(collection, isNull));

        assertEquals(1, collection.size());

        assertTrue(collection.contains(a));



        collection = new ArrayList<>(Arrays.asList(null, a, null));

        assertEquals(2, ArrayUtils.unstableRemoveIf(collection, isNull));

        assertEquals(1, collection.size());

        assertTrue(collection.contains(a));



        collection = new ArrayList<>(Arrays.asList(null, null, null));

        assertEquals(3, ArrayUtils.unstableRemoveIf(collection, isNull));

        assertEquals(0, collection.size());

    }



    @SmallTest

    public void testThrowsIfOutOfBounds_passesWhenRangeInsideArray() {

        ArrayUtils.throwsIfOutOfBounds(10, 2, 6);

    }



    @SmallTest

    public void testThrowsIfOutOfBounds_passesWhenRangeIsWholeArray() {

        ArrayUtils.throwsIfOutOfBounds(10, 0, 10);

    }



    @SmallTest

    public void testThrowsIfOutOfBounds_passesWhenEmptyRangeAtStart() {

        ArrayUtils.throwsIfOutOfBounds(10, 0, 0);

    }



    @SmallTest

    public void testThrowsIfOutOfBounds_passesWhenEmptyRangeAtEnd() {

        ArrayUtils.throwsIfOutOfBounds(10, 10, 0);

    }



    @SmallTest

    public void testThrowsIfOutOfBounds_passesWhenEmptyArray() {

        ArrayUtils.throwsIfOutOfBounds(0, 0, 0);

    }



    @SmallTest

    public void testThrowsIfOutOfBounds_failsWhenRangeStartNegative() {

        try {

            ArrayUtils.throwsIfOutOfBounds(10, -1, 5);

            fail();

        } catch (ArrayIndexOutOfBoundsException expected) {

            // expected

        }

    }



    @SmallTest

    public void testThrowsIfOutOfBounds_failsWhenCountNegative() {

        try {

            ArrayUtils.throwsIfOutOfBounds(10, 5, -1);

            fail();

        } catch (ArrayIndexOutOfBoundsException expected) {

            // expected

        }

    }



    @SmallTest

    public void testThrowsIfOutOfBounds_failsWhenRangeStartTooHigh() {

        try {

            ArrayUtils.throwsIfOutOfBounds(10, 11, 0);

            fail();

        } catch (ArrayIndexOutOfBoundsException expected) {

            // expected

        }

    }



    @SmallTest

    public void testThrowsIfOutOfBounds_failsWhenRangeEndTooHigh() {

        try {

            ArrayUtils.throwsIfOutOfBounds(10, 5, 6);

            fail();

        } catch (ArrayIndexOutOfBoundsException expected) {

            // expected

        }

    }



    @SmallTest

    public void testThrowsIfOutOfBounds_failsWhenLengthNegative() {

        try {

            ArrayUtils.throwsIfOutOfBounds(-1, 0, 0);

            fail();

        } catch (ArrayIndexOutOfBoundsException expected) {

            // expected

        }

    }



    @SmallTest

    public void testThrowsIfOutOfBounds_failsWhenOverflowRangeEndTooHigh() {

        try {

            ArrayUtils.throwsIfOutOfBounds(Integer.MAX_VALUE, Integer.MAX_VALUE, Integer.MAX_VALUE);

            fail();

        } catch (ArrayIndexOutOfBoundsException expected) {

            // expected

        }

    }

}

core/tests/utiltests/src/com/android/internal/util/ArrayUtilsTest.java

+184 −0
Original line number Diff line number Diff line
@@ -18,6 +18,12 @@ package com.android.internal.util; 


import static org.junit.Assert.assertArrayEquals;



import androidx.test.filters.SmallTest;



import java.util.ArrayList;

import java.util.Arrays;

import java.util.Collections;



import junit.framework.TestCase;



/**
@@ -257,4 +263,182 @@ public class ArrayUtilsTest extends TestCase { 


        assertArrayEquals(expectation, ArrayUtils.concat(array1, array2, array3));

    }



    @SmallTest

    public void testUnstableRemoveIf() throws Exception {

        java.util.function.Predicate<Object> isNull = new java.util.function.Predicate<Object>() {

            @Override

            public boolean test(Object o) {

                return o == null;

            }

        };



        final Object a = new Object();

        final Object b = new Object();

        final Object c = new Object();



        ArrayList<Object> collection = null;

        assertEquals(0, ArrayUtils.unstableRemoveIf(collection, isNull));



        collection = new ArrayList<>();

        assertEquals(0, ArrayUtils.unstableRemoveIf(collection, isNull));



        collection = new ArrayList<>(Collections.singletonList(a));

        assertEquals(0, ArrayUtils.unstableRemoveIf(collection, isNull));

        assertEquals(1, collection.size());

        assertTrue(collection.contains(a));



        collection = new ArrayList<>(Collections.singletonList(null));

        assertEquals(1, ArrayUtils.unstableRemoveIf(collection, isNull));

        assertEquals(0, collection.size());



        collection = new ArrayList<>(Arrays.asList(a, b));

        assertEquals(0, ArrayUtils.unstableRemoveIf(collection, isNull));

        assertEquals(2, collection.size());

        assertTrue(collection.contains(a));

        assertTrue(collection.contains(b));



        collection = new ArrayList<>(Arrays.asList(a, null));

        assertEquals(1, ArrayUtils.unstableRemoveIf(collection, isNull));

        assertEquals(1, collection.size());

        assertTrue(collection.contains(a));



        collection = new ArrayList<>(Arrays.asList(null, a));

        assertEquals(1, ArrayUtils.unstableRemoveIf(collection, isNull));

        assertEquals(1, collection.size());

        assertTrue(collection.contains(a));



        collection = new ArrayList<>(Arrays.asList(null, null));

        assertEquals(2, ArrayUtils.unstableRemoveIf(collection, isNull));

        assertEquals(0, collection.size());



        collection = new ArrayList<>(Arrays.asList(a, b, c));

        assertEquals(0, ArrayUtils.unstableRemoveIf(collection, isNull));

        assertEquals(3, collection.size());

        assertTrue(collection.contains(a));

        assertTrue(collection.contains(b));

        assertTrue(collection.contains(c));



        collection = new ArrayList<>(Arrays.asList(a, b, null));

        assertEquals(1, ArrayUtils.unstableRemoveIf(collection, isNull));

        assertEquals(2, collection.size());

        assertTrue(collection.contains(a));

        assertTrue(collection.contains(b));



        collection = new ArrayList<>(Arrays.asList(a, null, b));

        assertEquals(1, ArrayUtils.unstableRemoveIf(collection, isNull));

        assertEquals(2, collection.size());

        assertTrue(collection.contains(a));

        assertTrue(collection.contains(b));



        collection = new ArrayList<>(Arrays.asList(null, a, b));

        assertEquals(1, ArrayUtils.unstableRemoveIf(collection, isNull));

        assertEquals(2, collection.size());

        assertTrue(collection.contains(a));

        assertTrue(collection.contains(b));



        collection = new ArrayList<>(Arrays.asList(a, null, null));

        assertEquals(2, ArrayUtils.unstableRemoveIf(collection, isNull));

        assertEquals(1, collection.size());

        assertTrue(collection.contains(a));



        collection = new ArrayList<>(Arrays.asList(null, null, a));

        assertEquals(2, ArrayUtils.unstableRemoveIf(collection, isNull));

        assertEquals(1, collection.size());

        assertTrue(collection.contains(a));



        collection = new ArrayList<>(Arrays.asList(null, a, null));

        assertEquals(2, ArrayUtils.unstableRemoveIf(collection, isNull));

        assertEquals(1, collection.size());

        assertTrue(collection.contains(a));



        collection = new ArrayList<>(Arrays.asList(null, null, null));

        assertEquals(3, ArrayUtils.unstableRemoveIf(collection, isNull));

        assertEquals(0, collection.size());

    }



    @SmallTest

    public void testThrowsIfOutOfBounds_passesWhenRangeInsideArray() {

        ArrayUtils.throwsIfOutOfBounds(10, 2, 6);

    }



    @SmallTest

    public void testThrowsIfOutOfBounds_passesWhenRangeIsWholeArray() {

        ArrayUtils.throwsIfOutOfBounds(10, 0, 10);

    }



    @SmallTest

    public void testThrowsIfOutOfBounds_passesWhenEmptyRangeAtStart() {

        ArrayUtils.throwsIfOutOfBounds(10, 0, 0);

    }



    @SmallTest

    public void testThrowsIfOutOfBounds_passesWhenEmptyRangeAtEnd() {

        ArrayUtils.throwsIfOutOfBounds(10, 10, 0);

    }



    @SmallTest

    public void testThrowsIfOutOfBounds_passesWhenEmptyArray() {

        ArrayUtils.throwsIfOutOfBounds(0, 0, 0);

    }



    @SmallTest

    public void testThrowsIfOutOfBounds_failsWhenRangeStartNegative() {

        try {

            ArrayUtils.throwsIfOutOfBounds(10, -1, 5);

            fail();

        } catch (ArrayIndexOutOfBoundsException expected) {

            // expected

        }

    }



    @SmallTest

    public void testThrowsIfOutOfBounds_failsWhenCountNegative() {

        try {

            ArrayUtils.throwsIfOutOfBounds(10, 5, -1);

            fail();

        } catch (ArrayIndexOutOfBoundsException expected) {

            // expected

        }

    }



    @SmallTest

    public void testThrowsIfOutOfBounds_failsWhenRangeStartTooHigh() {

        try {

            ArrayUtils.throwsIfOutOfBounds(10, 11, 0);

            fail();

        } catch (ArrayIndexOutOfBoundsException expected) {

            // expected

        }

    }



    @SmallTest

    public void testThrowsIfOutOfBounds_failsWhenRangeEndTooHigh() {

        try {

            ArrayUtils.throwsIfOutOfBounds(10, 5, 6);

            fail();

        } catch (ArrayIndexOutOfBoundsException expected) {

            // expected

        }

    }



    @SmallTest

    public void testThrowsIfOutOfBounds_failsWhenLengthNegative() {

        try {

            ArrayUtils.throwsIfOutOfBounds(-1, 0, 0);

            fail();

        } catch (ArrayIndexOutOfBoundsException expected) {

            // expected

        }

    }



    @SmallTest

    public void testThrowsIfOutOfBounds_failsWhenOverflowRangeEndTooHigh() {

        try {

            ArrayUtils.throwsIfOutOfBounds(Integer.MAX_VALUE, Integer.MAX_VALUE, Integer.MAX_VALUE);

            fail();

        } catch (ArrayIndexOutOfBoundsException expected) {

            // expected

        }

    }

}