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perf: Replace Guava Splitter with faster custom String splitting method
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54 changes: 54 additions & 0 deletions
54
...eclipse.tm4e.core/src/test/java/org/eclipse/tm4e/core/internal/utils/StringUtilsTest.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,54 @@ | ||
| /** | ||
| * Copyright (c) 2023 Vegard IT GmbH and others. | ||
| * | ||
| * This program and the accompanying materials are made | ||
| * available under the terms of the Eclipse Public License 2.0 | ||
| * which is available at https://www.eclipse.org/legal/epl-2.0/ | ||
| * | ||
| * SPDX-License-Identifier: EPL-2.0 | ||
| * | ||
| * Contributors: | ||
| * Sebastian Thomschke - initial implementation | ||
| */ | ||
| package org.eclipse.tm4e.core.internal.utils; | ||
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| import static org.junit.jupiter.api.Assertions.*; | ||
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| import java.util.List; | ||
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| import org.junit.jupiter.api.Test; | ||
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| class StringUtilsTest { | ||
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| @Test | ||
| void testSplitToArray() { | ||
| assertArrayEquals(new String[] { "" }, StringUtils.splitToArray("", '.')); | ||
| assertArrayEquals(new String[] { "abc" }, StringUtils.splitToArray("abc", '.')); | ||
| assertArrayEquals(new String[] { "abc", "" }, StringUtils.splitToArray("abc.", '.')); | ||
| assertArrayEquals(new String[] { "", "abc", "" }, StringUtils.splitToArray(".abc.", '.')); | ||
| assertArrayEquals(new String[] { "", "" }, StringUtils.splitToArray(".", '.')); | ||
| assertArrayEquals(new String[] { "", "", "", "" }, StringUtils.splitToArray("...", '.')); | ||
| assertArrayEquals(new String[] { "1", "2", "3", "4", "5", "6", "7", "8" }, | ||
| StringUtils.splitToArray("1.2.3.4.5.6.7.8", '.')); | ||
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| // test internal array resize | ||
| assertArrayEquals(new String[] { "1", "2", "3", "4", "5", "6", "7", "8", "9" }, | ||
| StringUtils.splitToArray("1.2.3.4.5.6.7.8.9", '.')); | ||
| } | ||
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| @Test | ||
| void testSplitToList() { | ||
| assertEquals(List.of(""), StringUtils.splitToList("", '.')); | ||
| assertEquals(List.of("abc"), StringUtils.splitToList("abc", '.')); | ||
| assertEquals(List.of("abc", ""), StringUtils.splitToList("abc.", '.')); | ||
| assertEquals(List.of("", "abc", ""), StringUtils.splitToList(".abc.", '.')); | ||
| assertEquals(List.of("", ""), StringUtils.splitToList(".", '.')); | ||
| assertEquals(List.of("", "", "", ""), StringUtils.splitToList("...", '.')); | ||
| assertEquals(List.of("1", "2", "3", "4", "5", "6", "7", "8"), | ||
| StringUtils.splitToList("1.2.3.4.5.6.7.8", '.')); | ||
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| // test internal array resize | ||
| assertEquals(List.of("1", "2", "3", "4", "5", "6", "7", "8", "9"), | ||
| StringUtils.splitToList("1.2.3.4.5.6.7.8.9", '.')); | ||
| } | ||
| } |
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