@Test
public void right_A$() throws Exception {
Either<String, Integer> target = Left.apply("foo");
Option<Integer> actual = target.right();
assertThat(actual.isDefined(), is(false));
assertThat(actual.getOrNull(), is(nullValue()));
}
@Test
public void left_A$() throws Exception {
Either<String, Integer> target = Left.apply("foo");
Option<String> actual = target.left();
assertThat(actual.isDefined(), is(true));
assertThat(actual.getOrNull(), is(equalTo("foo")));
}
@Test
public void swap_A$() throws Exception {
Either<String, Integer> target = Left.apply("foo");
Either<Integer, String> swapped = target.swap();
Option<String> right = swapped.right();
assertThat(right.isDefined(), is(true));
assertThat(right.getOrNull(), is(equalTo("foo")));
}
@Test
public void map_A$Function1() throws Exception {
String value = "vvv";
Some<String> target = new Some<String>(value);
F1<String, String> f =
new F1<String, String>() {
@Override
public String apply(String v1) {
return v1;
}
};
Option<String> actual = target.map(f);
assertThat(actual.getOrNull(), is(equalTo("vvv")));
}
@Test
public void flatMap_A$F1() throws Exception {
String value = "vvv";
Some<String> target = new Some<String>(value);
F1<String, Option<Integer>> f =
new F1<String, Option<Integer>>() {
@Override
public Option<Integer> apply(String v1) {
return Option.apply(v1.length());
}
};
Option<Integer> actual = target.flatMap(f);
assertThat(actual.getOrNull(), is(equalTo(3)));
}
@Test
public void filter_A$F1() throws Exception {
String value = "vvv";
Some<String> target = new Some<String>(value);
F1<String, Boolean> isStartsWithv =
new F1<String, Boolean>() {
@Override
public Boolean apply(String v1) {
return v1.startsWith("v");
}
};
F1<String, Boolean> isStartsWithw =
new F1<String, Boolean>() {
@Override
public Boolean apply(String v1) {
return v1.startsWith("w");
}
};
Option<String> actual = target.filter(isStartsWithv);
assertThat(actual.getOrNull(), is(equalTo("vvv")));
Option<String> actual2 = target.filter(isStartsWithw);
assertNull(actual2.getOrNull());
}