Examples with ALLOWS_NULL_KEYS com.google.common.collect.testing.features.MapFeature.ALLOWS_NULL_KEYS used on opensource projects

Example 1 with ALLOWS_NULL_KEYS

use of com.google.common.collect.testing.features.MapFeature.ALLOWS_NULL_KEYS in project guava by google.

the class MapComputeIfPresentTester method testComputeIfPresent_nullKeySupportedAbsent.

@MapFeature.Require({ SUPPORTS_PUT, ALLOWS_NULL_KEYS })
public void testComputeIfPresent_nullKeySupportedAbsent() {
    assertNull("computeIfPresent(null, function) should return null", getMap().computeIfPresent(null, (k, v) -> {
        throw new AssertionFailedError();
    }));
    expectUnchanged();
}

Example 2 with ALLOWS_NULL_KEYS

use of com.google.common.collect.testing.features.MapFeature.ALLOWS_NULL_KEYS in project guava by google.

the class MapMergeTester method testMergeAbsentNullKey.

@MapFeature.Require({ SUPPORTS_PUT, ALLOWS_NULL_KEYS })
public void testMergeAbsentNullKey() {
    assertEquals("Map.merge(null, value, function) should return value", v3(), getMap().merge(null, v3(), (oldV, newV) -> {
        throw new AssertionFailedError("Should not call merge function if key was absent");
    }));
    expectAdded(entry(null, v3()));
}