Cross Reference: /libcore/luni/src/test/java/libcore/java/util/OptionalTest.java

Lines Matching refs:empty
33         // empty() is a singleton instance.
34         assertSame(Optional.<Integer>empty(), Optional.<String>empty());
35         assertSame(Optional.<String>empty(), Optional.<String>empty());
37         // Note that we assert here that the empty() optional is the same instance
40         assertSame(Optional.<String>empty(), Optional.ofNullable(null));
44         Optional<String> empty = Optional.empty();
47             empty.get();
58         Optional<String> empty = Optional.empty();
59         assertFalse(empty.isPresent());
68         Optional<String> empty = Optional.empty();
74         empty.ifPresent(alwaysFail);
85         Optional<String> empty = Optional.empty();
90         assertSame(empty, empty.filter(alwaysFail));
91         assertSame(empty, empty.filter(alwaysFail));
99         assertSame(empty, optionalFoo.filter(alwaysFalse));
108         Optional<String> empty = Optional.empty();
112         // Should return Optional.empty() if the value isn't present.
113         assertSame(empty, empty.map(alwaysFail));
114         assertSame(empty, ofNull.map(alwaysFail));
125         assertSame(empty, optionalFoo.map(alwaysNull));
129         Optional<String> empty = Optional.empty();
132         Function<String, Optional<String>> alwaysFail = s -> { fail(); return Optional.empty(); };
133         // Should return Optional.empty() if the value isn't present.
134         assertSame(empty, empty.flatMap(alwaysFail));
135         assertSame(empty, ofNull.flatMap(alwaysFail));
163         Optional<String> empty = Optional.empty();
167         assertSame(bar, empty.orElse(bar));
176         Optional<String> empty = Optional.empty();
182         assertSame(bar, empty.orElseGet(barSupplier));
191         Optional<String> empty = Optional.empty();
197             empty.orElseThrow(barSupplier);
216         assertEquals(Optional.empty(), Optional.<String>ofNullable(null));
219         assertFalse(Optional.of("foo").equals(Optional.empty()));