@Test
public void retainAllFromValues() {
MutableMapIterable<String, Integer> map =
this.newMapWithKeysValues("One", 1, "Two", 2, "Three", 3);
Assert.assertFalse(map.values().retainAll(FastList.newListWith(1, 2, 3, 4)));
Assert.assertTrue(map.values().retainAll(FastList.newListWith(1, 3)));
Assert.assertEquals(UnifiedMap.newWithKeysValues("One", 1, "Three", 3), map);
}
@Test
public void removeFromValues() {
MutableMapIterable<String, Integer> map =
this.newMapWithKeysValues("One", 1, "Two", 2, "Three", 3);
Assert.assertFalse(map.values().remove(4));
Assert.assertTrue(map.values().remove(2));
Assert.assertEquals(UnifiedMap.newWithKeysValues("One", 1, "Three", 3), map);
}
@Test
public void updateValue_collisions() {
MutableMapIterable<Integer, Integer> map = this.newMap();
MutableList<Integer> list = Interval.oneTo(2000).toList();
Collections.shuffle(list);
Iterate.forEach(list, each -> map.updateValue(each % 1000, () -> 0, integer -> integer + 1));
Assert.assertEquals(Interval.zeroTo(999).toSet(), map.keySet());
Assert.assertEquals(
HashBag.newBag(map.values()).toStringOfItemToCount(),
FastList.newList(Collections.nCopies(1000, 2)),
FastList.newList(map.values()));
}
@Test
public void removeNullFromValues() {
if (this.newMap() instanceof ConcurrentMap) {
return;
}
MutableMapIterable<String, Integer> map =
this.newMapWithKeysValues("One", 1, "Two", 2, "Three", 3);
Assert.assertFalse(map.values().remove(null));
Assert.assertEquals(UnifiedMap.newWithKeysValues("One", 1, "Two", 2, "Three", 3), map);
map.put("Four", null);
Assert.assertTrue(map.values().remove(null));
Assert.assertEquals(UnifiedMap.newWithKeysValues("One", 1, "Two", 2, "Three", 3), map);
}
@Test
public void keysAndValues_toString() {
MutableMapIterable<Integer, String> map = this.newMapWithKeysValues(1, "1", 2, "2");
Verify.assertContains(map.keySet().toString(), FastList.newListWith("[1, 2]", "[2, 1]"));
Verify.assertContains(map.values().toString(), FastList.newListWith("[1, 2]", "[2, 1]"));
Verify.assertContains(map.keysView().toString(), FastList.newListWith("[1, 2]", "[2, 1]"));
Verify.assertContains(map.valuesView().toString(), FastList.newListWith("[1, 2]", "[2, 1]"));
}
@Test
public void updateValue() {
MutableMapIterable<Integer, Integer> map = this.newMap();
Iterate.forEach(
Interval.oneTo(1000), each -> map.updateValue(each % 10, () -> 0, integer -> integer + 1));
Assert.assertEquals(Interval.zeroTo(9).toSet(), map.keySet());
Assert.assertEquals(
FastList.newList(Collections.nCopies(10, 100)), FastList.newList(map.values()));
}
@Test
public void updateValueWith() {
MutableMapIterable<Integer, Integer> map = this.newMap();
Iterate.forEach(
Interval.oneTo(1000),
each ->
map.updateValueWith(
each % 10,
() -> 0,
(integer, parameter) -> {
Assert.assertEquals("test", parameter);
return integer + 1;
},
"test"));
Assert.assertEquals(Interval.zeroTo(9).toSet(), map.keySet());
Assert.assertEquals(
FastList.newList(Collections.nCopies(10, 100)), FastList.newList(map.values()));
}
@Test
public void getKeysAndGetValues() {
MutableMapIterable<Integer, String> map = this.newMapWithKeysValues(1, "1", 2, "2", 3, "3");
Verify.assertContainsAll(map.keySet(), 1, 2, 3);
Verify.assertContainsAll(map.values(), "1", "2", "3");
}