diff --git a/src/main/java/org/cactoos/scalar/HighestOf.java b/src/main/java/org/cactoos/scalar/HighestOf.java deleted file mode 100644 index 444e8d74f8..0000000000 --- a/src/main/java/org/cactoos/scalar/HighestOf.java +++ /dev/null @@ -1,112 +0,0 @@ -/** - * The MIT License (MIT) - * - * Copyright (c) 2017-2018 Yegor Bugayenko - * - * Permission is hereby granted, free of charge, to any person obtaining a copy - * of this software and associated documentation files (the "Software"), to deal - * in the Software without restriction, including without limitation the rights - * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell - * copies of the Software, and to permit persons to whom the Software is - * furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included - * in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE - * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, - * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE - * SOFTWARE. - */ -package org.cactoos.scalar; - -import org.cactoos.Scalar; -import org.cactoos.iterable.IterableOf; -import org.cactoos.iterable.Mapped; - -/** - * Find the highest item. - * - *

Here is how you can use it to - * find highest of {@link Comparable} items:

- * - * 
- * final String highest = new HighestOf<String>(
- *         () -> "Apple", () -> "Orange"
- *     ).value();
- * long sum = new MaxOf(1L, 2L, 3L).longValue();
- * int sum = new MaxOf(numbers.toArray(new Integer[numbers.size()])).intValue();
- *
- * - *

This class implements {@link Scalar}, which throws a checked - * {@link Exception}. This may not be convenient in many cases. To make - * it more convenient and get rid of the checked exception you can - * use {@link UncheckedScalar} or {@link IoCheckedScalar} decorators.

- * - *

There is no thread-safety guarantee. - * - * @author Fabricio Cabral (fabriciofx@gmail.com) - * @author Eduard Balovnev (bedward70@mail.ru) - * @version $Id$ - * @param Scalar type - * @see UncheckedScalar - * @see IoCheckedScalar - * @since 0.29 - */ -public final class HighestOf> implements Scalar { - - /** - * Result. - */ - private final Scalar result; - - /** - * Ctor. - * @param items The comparable items - */ - @SafeVarargs - public HighestOf(final T... items) { - this( - new Mapped<>( - item -> () -> item, - items - ) - ); - } - - /** - * Ctor. - * @param scalars The scalars - */ - @SafeVarargs - public HighestOf(final Scalar... scalars) { - this(new IterableOf<>(scalars)); - } - - /** - * Ctor. - * @param iterable The items - */ - public HighestOf(final Iterable> iterable) { - this.result = new Folded<>( - (first, second) -> { - final T value; - if (first.compareTo(second) > 0) { - value = first; - } else { - value = second; - } - return value; - }, - iterable - ); - } - - @Override - public T value() throws Exception { - return this.result.value(); - } -} diff --git a/src/test/java/org/cactoos/scalar/HighestOfTest.java b/src/test/java/org/cactoos/scalar/HighestOfTest.java deleted file mode 100644 index f60f33bad3..0000000000 --- a/src/test/java/org/cactoos/scalar/HighestOfTest.java +++ /dev/null @@ -1,240 +0,0 @@ -/** - * The MIT License (MIT) - * - * Copyright (c) 2017-2018 Yegor Bugayenko - * - * Permission is hereby granted, free of charge, to any person obtaining a copy - * of this software and associated documentation files (the "Software"), to deal - * in the Software without restriction, including without limitation the rights - * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell - * copies of the Software, and to permit persons to whom the Software is - * furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included - * in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE - * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, - * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE - * SOFTWARE. - */ -package org.cactoos.scalar; - -import java.util.Collections; -import java.util.Date; -import java.util.NoSuchElementException; -import org.cactoos.time.DateOf; -import org.hamcrest.MatcherAssert; -import org.hamcrest.Matchers; -import org.junit.Test; - -/** - * Test case for {@link HighestOf}. - * - * @author Fabricio Cabral (fabriciofx@gmail.com) - * @author Eduard Balovnev (bedward70@mail.ru) - * @version $Id$ - * @since 0.29 - * @checkstyle JavadocMethodCheck (500 lines) - * @checkstyle MagicNumberCheck (500 lines) - */ -@SuppressWarnings("PMD.AvoidDuplicateLiterals") -public final class HighestOfTest { - - @Test(expected = NoSuchElementException.class) - public void failsForEmptyIterable() throws Exception { - new HighestOf<>(() -> Collections.emptyIterator()).value(); - } - - @Test - public void singleAtSingleIterable() throws Exception { - MatcherAssert.assertThat( - "Can't find the highest among one by scalars", - new HighestOf(() -> 10).value(), - Matchers.equalTo(10) - ); - MatcherAssert.assertThat( - "Can't find the highest among one", - new HighestOf<>(10).value(), - Matchers.equalTo(10) - ); - } - - @Test - public void highestIntegerAtIterable() throws Exception { - MatcherAssert.assertThat( - "Can't find the highest integer among many by scalars", - new HighestOf( - () -> 10, - () -> 0, - () -> -1, - () -> 2 - ).value(), - Matchers.equalTo(10) - ); - MatcherAssert.assertThat( - "Can't find the highest integer among many", - new HighestOf<>(10, 0, -1, 2).value(), - Matchers.equalTo(10) - ); - MatcherAssert.assertThat( - "Can't find the highest negative integer among many", - new HighestOf<>(-272, -10, -134, -101).value(), - Matchers.equalTo(-10) - ); - MatcherAssert.assertThat( - "Can't find the highest max integer among many", - new HighestOf<>(Integer.MIN_VALUE, Integer.MAX_VALUE).value(), - Matchers.equalTo(Integer.MAX_VALUE) - ); - } - - @Test - public void highestLongAtIterable() throws Exception { - MatcherAssert.assertThat( - "Can't find the highest long among many by scalars", - new HighestOf( - () -> 10L, - () -> 0L, - () -> -1L, - () -> 2L - ).value(), - Matchers.equalTo(10L) - ); - MatcherAssert.assertThat( - "Can't find the highest long among many", - new HighestOf<>(10L, 0L, -1L, 2L).value(), - Matchers.equalTo(10L) - ); - MatcherAssert.assertThat( - "Can't find the highest negative long among many", - new HighestOf<>(-272L, -10L, -134L, -101L).value(), - Matchers.equalTo(-10L) - ); - MatcherAssert.assertThat( - "Can't find the highest max integer long many", - new HighestOf<>(Long.MIN_VALUE, Long.MAX_VALUE).value(), - Matchers.equalTo(Long.MAX_VALUE) - ); - } - - @Test - public void highestDoubleAtIterable() throws Exception { - MatcherAssert.assertThat( - "Can't find the highest double among many by scalars", - new HighestOf( - () -> 10.9, - () -> 0.8, - () -> -1.5, - () -> 10.8 - ).value(), - Matchers.equalTo(10.9) - ); - MatcherAssert.assertThat( - "Can't find the highest double among many", - new HighestOf<>(10., 0., -1., 2.).value(), - Matchers.equalTo(10.) - ); - MatcherAssert.assertThat( - "Can't find the highest negative double among many", - new HighestOf<>(-272., -10., -134., -101.).value(), - Matchers.equalTo(-10.) - ); - MatcherAssert.assertThat( - "Can't find the highest max double among many", - new HighestOf<>(Double.MIN_VALUE, Double.MAX_VALUE).value(), - Matchers.equalTo(Double.MAX_VALUE) - ); - MatcherAssert.assertThat( - "Can't find the highest min double among many", - new HighestOf<>(Double.MIN_VALUE, -10.).value(), - Matchers.equalTo(Double.MIN_VALUE) - ); - MatcherAssert.assertThat( - "Can't find the highest NaN double among many", - new HighestOf<>(Double.NaN, Double.MAX_VALUE).value(), - Matchers.equalTo(Double.NaN) - ); - MatcherAssert.assertThat( - "Can't find the highest positive infinity among many", - new HighestOf<>(Double.POSITIVE_INFINITY, Double.MAX_VALUE).value(), - Matchers.equalTo(Double.POSITIVE_INFINITY) - ); - MatcherAssert.assertThat( - "Can't find the highest negative infinity among many", - new HighestOf<>(Double.NEGATIVE_INFINITY, Double.MAX_VALUE).value(), - Matchers.equalTo(Double.MAX_VALUE) - ); - } - - @Test - public void highestStringAtIterable() throws Exception { - MatcherAssert.assertThat( - "Can't find the highest string among many by scalars", - new HighestOf(() -> "Apple", () -> "Orange").value(), - Matchers.equalTo("Orange") - ); - MatcherAssert.assertThat( - "Can't find the highest string among many", - new HighestOf<>("Apple", "Orange").value(), - Matchers.equalTo("Orange") - ); - } - - @Test - public void highestCharAtIterable() throws Exception { - MatcherAssert.assertThat( - "Can't find the highest char among many by scalars", - new HighestOf(() -> 'A', () -> 'B').value(), - Matchers.equalTo('B') - ); - MatcherAssert.assertThat( - "Can't find the highest char among many", - new HighestOf<>('A', 'B').value(), - Matchers.equalTo('B') - ); - } - - @Test - public void highestSumAtIterable() throws Exception { - MatcherAssert.assertThat( - "Can't find the highest double sum among many", - new HighestOf( - new SumOf(1.0d), - new SumOf(1.0d, 2.0d), - new SumOf(1.0d, 2.0d, 3.0d) - ).value(), - Matchers.equalTo(new SumOf(1.0d, 2.0d, 3.0d).value()) - ); - } - - @Test - public void highestDateAtIterable() throws Exception { - MatcherAssert.assertThat( - "Can't find the highest date among many", - new HighestOf( - new DateOf("2007-12-26T14:20:16.000000017Z"), - new DateOf("2017-12-13T14:15:16.000000017Z"), - new DateOf("2017-12-13T14:15:16.000000018Z") - ).value(), - Matchers.equalTo( - new DateOf("2017-12-13T14:15:16.000000018Z").value() - ) - ); - } - - @Test - public void highestBooleanAtIterable() throws Exception { - MatcherAssert.assertThat( - "Can't find the highest boolean among many", - new HighestOf( - new BoolOf("false"), - new BoolOf("true") - ).value(), - Matchers.equalTo(new BoolOf("true").value()) - ); - } -}