是否有一个“针对每个”匹配器的Hamcrest，可以断言Collection或Iterable的所有元素匹配单个特定的Matcher？

使用

Every

import org.hamcrest.beans.HasPropertyWithValue;import org.hamcrest.core.Every;import org.hamcrest.core.Is;import org.junit.Assert;Assert.assertThat(people, (Every.everyItem(HasPropertyWithValue.hasProperty("gender", Is.is("male")))));

Hamcrest还提供

Matchers#everyItem

Matcher

完整的例子

@org.junit.Testpublic void method() throws Exception {    Iterable<Person> people = Arrays.asList(new Person(), new Person());    Assert.assertThat(people, (Every.everyItem(HasPropertyWithValue.hasProperty("gender", Is.is("male")))));}public static class Person {    String gender = "male";    public String getGender() {        return gender;    }    public void setGender(String gender) {        this.gender = gender;    }}