CinderComputableUnitTest.java 文件源码

@Test
public void skipWhileSkipsWhileTrue() throws Exception {
    String badString = "BAD STRING";
    String goodString = "GOOD STRING";
    String gooderString = "GOODER STRING";
    ObservableArrayList<String> observed = new ObservableArrayList<>();
    observed.add(goodString);
    CinderComputable computing = Cinder.observable(observed).takeWhile(()->observed.get(0).startsWith("GOOD"));
    ObservableField<String> observing = Cinder.<String>computeField(()-> {
        return observed.get(0);
    }, computing).immediate();

    observed.add(0, goodString);
    assertEquals(goodString, observing.get());

    observed.add(0, badString);
    assertEquals(goodString, observing.get());

    observed.add(0, gooderString);
    assertEquals(goodString, observing.get());
}