org.gradle.api.internal.file.copy.LineFilterTest.groovy Maven / Gradle / Ivy
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Gradle 5.5.1 API redistribution.
/*
* Copyright 2009 the original author or 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 org.gradle.api.internal.file.copy
import org.junit.Test
import org.gradle.internal.SystemProperties
import static org.hamcrest.Matchers.*
import static org.junit.Assert.*
class LineFilterTest {
@Test void testEmptyInput() {
def input = new StringReader("")
def lineCount = 1
def filter = new LineFilter(input, { "${lineCount++} - $it" as String })
assertThat(filter.text, equalTo(""))
}
@Test void testEmptyLinesWithTrailingEOL() {
def input = new StringReader("\n\n")
def lineCount = 1
def filter = new LineFilter(input, { "${lineCount++} - $it" as String })
assertThat(filter.text, equalTo(lines("1 - ", "2 - ", "")))
}
@Test void testSingleLine() {
def input = new StringReader("one")
def lineCount = 1
def filter = new LineFilter(input, { "${lineCount++} - $it" as String })
assertThat(filter.text, equalTo("1 - one"))
}
@Test void testWithEmptyReplacementString() {
def input = new StringReader("one")
def filter = new LineFilter(input, {""})
assertThat(filter.text, equalTo(""))
}
@Test void testCRLFWithTrailingEOL() {
def input = new StringReader("one\r\ntwo\r\nthree\r\n")
def lineCount = 1
def filter = new LineFilter(input, { "${lineCount++} - $it" as String })
assertThat(filter.text, equalTo(lines("1 - one", "2 - two", "3 - three", "")))
}
@Test void testLfWithNoTrailingEOL() {
def input = new StringReader("one\ntwo\nthree")
def lineCount = 1
def filter = new LineFilter(input, { "${lineCount++} - $it" as String })
assertThat(filter.text, equalTo(lines("1 - one", "2 - two", "3 - three")))
}
@Test void testCRWithNoTrailingEOL() {
def input = new StringReader("one\rtwo\rthree")
def lineCount = 1
def filter = new LineFilter(input, { "${lineCount++} - $it" as String })
assertThat(filter.text, equalTo(lines("1 - one", "2 - two", "3 - three")))
}
@Test void testClosureReturningNull() {
def input = new StringReader("one\ntwo\nthree\n")
def lineCount = 1
def filter = new LineFilter(input, { lineCount++ % 2 == 0 ? null : it })
assertThat(filter.text, equalTo(lines("one", "three", "")))
}
@Test void testClosureAlwaysReturningNull() {
def input = new StringReader("one\ntwo\nthree\n")
def lineCount = 1
def filter = new LineFilter(input, { null })
assertThat(filter.text, equalTo(lines()))
}
private String lines(String ... lines) {
(lines as List).join(SystemProperties.instance.lineSeparator)
}
}