org.hamcrest.core.Every Maven / Gradle / Ivy
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package org.hamcrest.core;
import org.hamcrest.Description;
import org.hamcrest.Factory;
import org.hamcrest.Matcher;
import org.hamcrest.TypeSafeDiagnosingMatcher;
public class Every extends TypeSafeDiagnosingMatcher> {
private final Matcher matcher;
public Every(Matcher matcher) {
this.matcher= matcher;
}
@Override
public boolean matchesSafely(Iterable collection, Description mismatchDescription) {
for (T t : collection) {
if (!matcher.matches(t)) {
mismatchDescription.appendText("an item ");
matcher.describeMismatch(t, mismatchDescription);
return false;
}
}
return true;
}
@Override
public void describeTo(Description description) {
description.appendText("every item is ").appendDescriptionOf(matcher);
}
/**
* Creates a matcher for {@link Iterable}s that only matches when a single pass over the
* examined {@link Iterable} yields items that are all matched by the specified
* itemMatcher.
*
* For example:
* assertThat(Arrays.asList("bar", "baz"), everyItem(startsWith("ba")))
*
* @param itemMatcher
* the matcher to apply to every item provided by the examined {@link Iterable}
*/
@Factory
public static Matcher> everyItem(final Matcher itemMatcher) {
return new Every(itemMatcher);
}
}