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/*
* Copyright (C) 2009, Google Inc. and others
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Distribution License v. 1.0 which is available at
* https://www.eclipse.org/org/documents/edl-v10.php.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
package org.eclipse.jgit.util;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertThrows;
import static org.junit.Assert.assertTrue;
import org.junit.Test;
public class StringUtilsTest {
@Test
public void testToLowerCaseChar() {
assertEquals('a', StringUtils.toLowerCase('A'));
assertEquals('z', StringUtils.toLowerCase('Z'));
assertEquals('a', StringUtils.toLowerCase('a'));
assertEquals('z', StringUtils.toLowerCase('z'));
assertEquals((char) 0, StringUtils.toLowerCase((char) 0));
assertEquals((char) 0xffff, StringUtils.toLowerCase((char) 0xffff));
}
@Test
public void testToLowerCaseString() {
assertEquals("\n abcdefghijklmnopqrstuvwxyz\n", StringUtils
.toLowerCase("\n ABCDEFGHIJKLMNOPQRSTUVWXYZ\n"));
}
@Test
public void testEqualsIgnoreCase1() {
final String a = "FOO";
assertTrue(StringUtils.equalsIgnoreCase(a, a));
}
@Test
public void testEqualsIgnoreCase2() {
assertFalse(StringUtils.equalsIgnoreCase("a", ""));
}
@Test
public void testEqualsIgnoreCase3() {
assertFalse(StringUtils.equalsIgnoreCase("a", "b"));
assertFalse(StringUtils.equalsIgnoreCase("ac", "ab"));
}
@Test
public void testEqualsIgnoreCase4() {
assertTrue(StringUtils.equalsIgnoreCase("a", "a"));
assertTrue(StringUtils.equalsIgnoreCase("A", "a"));
assertTrue(StringUtils.equalsIgnoreCase("a", "A"));
}
@Test
public void testReplaceLineBreaks() {
assertEquals("a b c ",
StringUtils.replaceLineBreaksWithSpace("a b\nc\r"));
assertEquals("a b c ",
StringUtils.replaceLineBreaksWithSpace("a b\nc\n"));
assertEquals("a b c ",
StringUtils.replaceLineBreaksWithSpace("a b\nc\r\n"));
assertEquals("a b c d",
StringUtils.replaceLineBreaksWithSpace("a\r\nb\nc d"));
}
@Test
public void testFormatWithSuffix() {
assertEquals("1023", StringUtils.formatWithSuffix(1023));
assertEquals("1k", StringUtils.formatWithSuffix(1024));
assertEquals("1025", StringUtils.formatWithSuffix(1025));
assertEquals("1048575", StringUtils.formatWithSuffix(1024 * 1024 - 1));
assertEquals("1m", StringUtils.formatWithSuffix(1024 * 1024));
assertEquals("1048577", StringUtils.formatWithSuffix(1024 * 1024 + 1));
assertEquals("1073741823",
StringUtils.formatWithSuffix(1024 * 1024 * 1024 - 1));
assertEquals("1g", StringUtils.formatWithSuffix(1024 * 1024 * 1024));
assertEquals("1073741825",
StringUtils.formatWithSuffix(1024 * 1024 * 1024 + 1));
assertEquals("3k", StringUtils.formatWithSuffix(3 * 1024));
assertEquals("3m", StringUtils.formatWithSuffix(3 * 1024 * 1024));
assertEquals("2050k",
StringUtils.formatWithSuffix(2 * 1024 * 1024 + 2048));
assertEquals("3g",
StringUtils.formatWithSuffix(3L * 1024 * 1024 * 1024));
assertEquals("3000", StringUtils.formatWithSuffix(3000));
assertEquals("3000000", StringUtils.formatWithSuffix(3_000_000));
assertEquals("1953125k", StringUtils.formatWithSuffix(2_000_000_000));
assertEquals("2000000010", StringUtils.formatWithSuffix(2_000_000_010));
assertEquals("3000000000",
StringUtils.formatWithSuffix(3_000_000_000L));
}
@Test
public void testParseWithSuffix() {
assertEquals(1024, StringUtils.parseIntWithSuffix("1k", true));
assertEquals(1024, StringUtils.parseIntWithSuffix("1 k", true));
assertEquals(1024, StringUtils.parseIntWithSuffix("1 k", true));
assertEquals(1024, StringUtils.parseIntWithSuffix(" \t1 k \n", true));
assertEquals(1024, StringUtils.parseIntWithSuffix("1k", false));
assertEquals(1024, StringUtils.parseIntWithSuffix("1K", false));
assertEquals(1024 * 1024, StringUtils.parseIntWithSuffix("1m", false));
assertEquals(1024 * 1024, StringUtils.parseIntWithSuffix("1M", false));
assertEquals(-1024 * 1024,
StringUtils.parseIntWithSuffix("-1M", false));
assertEquals(1_000_000,
StringUtils.parseIntWithSuffix(" 1000000\r\n", false));
assertEquals(1024 * 1024 * 1024,
StringUtils.parseIntWithSuffix("1g", false));
assertEquals(1024 * 1024 * 1024,
StringUtils.parseIntWithSuffix("1G", false));
assertEquals(3L * 1024 * 1024 * 1024,
StringUtils.parseLongWithSuffix("3g", false));
assertEquals(3L * 1024 * 1024 * 1024,
StringUtils.parseLongWithSuffix("3G", false));
assertThrows(NumberFormatException.class,
() -> StringUtils.parseIntWithSuffix("2G", false));
assertEquals(2L * 1024 * 1024 * 1024,
StringUtils.parseLongWithSuffix("2G", false));
assertThrows(NumberFormatException.class,
() -> StringUtils.parseLongWithSuffix("-1m", true));
assertThrows(NumberFormatException.class,
() -> StringUtils.parseLongWithSuffix("-1000", true));
assertThrows(StringIndexOutOfBoundsException.class,
() -> StringUtils.parseLongWithSuffix("", false));
assertThrows(StringIndexOutOfBoundsException.class,
() -> StringUtils.parseLongWithSuffix(" \t \n", false));
assertThrows(StringIndexOutOfBoundsException.class,
() -> StringUtils.parseLongWithSuffix("k", false));
assertThrows(StringIndexOutOfBoundsException.class,
() -> StringUtils.parseLongWithSuffix("m", false));
assertThrows(StringIndexOutOfBoundsException.class,
() -> StringUtils.parseLongWithSuffix("g", false));
assertThrows(NumberFormatException.class,
() -> StringUtils.parseLongWithSuffix("1T", false));
assertThrows(NumberFormatException.class,
() -> StringUtils.parseLongWithSuffix("1t", false));
assertThrows(NumberFormatException.class,
() -> StringUtils.parseLongWithSuffix("Nonumber", false));
assertThrows(NumberFormatException.class,
() -> StringUtils.parseLongWithSuffix("0x001f", false));
assertThrows(NumberFormatException.class,
() -> StringUtils.parseLongWithSuffix("beef", false));
assertThrows(NumberFormatException.class,
() -> StringUtils.parseLongWithSuffix("8000000000000000000G",
false));
}
@Test
public void testCommonPrefix() {
assertEquals("", StringUtils.commonPrefix((String[]) null));
assertEquals("", StringUtils.commonPrefix(new String[] {}));
assertEquals("", StringUtils.commonPrefix(new String[] { null }));
assertEquals("", StringUtils.commonPrefix(null, null));
assertEquals("", StringUtils.commonPrefix("", ""));
assertEquals("", StringUtils.commonPrefix(null, ""));
assertEquals("", StringUtils.commonPrefix("abcd", null, null));
assertEquals("", StringUtils.commonPrefix(null, null, "abcd"));
assertEquals("", StringUtils.commonPrefix("", "abcd"));
assertEquals("", StringUtils.commonPrefix("abcd", "efgh"));
assertEquals("abcd", StringUtils.commonPrefix("abcd"));
assertEquals("ab", StringUtils.commonPrefix("abcd", "ab"));
assertEquals("abcd", StringUtils.commonPrefix("abcd", "abcdefgh"));
assertEquals("foo bar ",
StringUtils.commonPrefix("foo bar 42", "foo bar 24"));
}
}
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