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// Copyright 2017 Yahoo Holdings. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.test;
import org.hamcrest.BaseMatcher;
import org.hamcrest.Description;
import org.hamcrest.Factory;
import org.hamcrest.Matcher;
/**
* Checks if a multi-line string contains at least one line with the expected regex pattern.
*
* @author gjoranv
* @since 5.1.7
*/
public class LinePatternMatcher extends BaseMatcher<String> {
private final String pattern;
public LinePatternMatcher(String pattern) {
this.pattern = pattern;
}
@Override
public void describeTo(Description description) {
description.appendText("contains a line that matches expression '" + pattern + "'");
}
@Override
public boolean matches(Object o) {
String s = (String)o;
String[] lines = s.split("\n");
for (String line : lines)
if (line.matches(pattern))
return true;
return false;
}
@Factory
public static <T> Matcher<String> containsLineWithPattern(String pattern) {
return new LinePatternMatcher(pattern);
}
}
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