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RegularExpressionMatcher.java
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RegularExpressionMatcher.java
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/*
* Copyright 2014-2015 Amazon.com, Inc. or its affiliates. All Rights Reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License").
* You may not use this file except in compliance with the License.
* A copy of the License is located at
*
* http://aws.amazon.com/apache2.0
*
* or in the "license" file accompanying this file. This file 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 com.amazonaws.devicefarm.android.referenceapp;
import android.support.test.espresso.matcher.BoundedMatcher;
import android.view.View;
import android.widget.TextView;
import org.hamcrest.Description;
import org.hamcrest.Matcher;
import static android.support.test.espresso.core.deps.guava.base.Preconditions.checkArgument;
import static android.support.test.espresso.core.deps.guava.base.Preconditions.checkNotNull;
import static org.hamcrest.CoreMatchers.is;
/**
* A custom matcher for regular expressions
*/
public final class RegularExpressionMatcher{
/**
* Matches a string to a specific pattern
*
* @param pattern regular expression
* @return the matcher result
*/
public static Matcher<View> matchesPattern(final String pattern){
checkNotNull(pattern);
return new BoundedMatcher<View, TextView>(TextView.class) {
@Override
public void describeTo(final Description description) {
description.appendText("The textview does not conform to the pattern: ")
.appendText(pattern);
}
@Override
protected boolean matchesSafely(TextView textView) {
return textView.getText().toString().matches(pattern);
}
};
}
}