41 lines
1.3 KiB
Java
41 lines
1.3 KiB
Java
import java.util.Optional;
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import static org.assertj.core.api.Assertions.assertThat;
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public class Java8Optional {
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private void java8Optional() {
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Optional<String> opt = Optional.empty();
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assertThat(opt).as("foo").isPresent();
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assertThat(opt).isPresent();
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assertThat(opt).isPresent();
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assertThat(opt).isPresent();
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assertThat(opt).isPresent();
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assertThat(opt).isNotPresent();
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assertThat(opt).isNotPresent();
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assertThat(opt).isNotPresent();
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assertThat(opt).isNotPresent();
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assertThat(opt).isNotPresent();
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assertThat(opt).as("foo").contains("foo");
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assertThat(opt).containsSame("foo");
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assertThat(opt.get()).isNotEqualTo("foo");
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assertThat(opt.get()).isNotSameAs("foo");
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assertThat(opt).as("foo").contains("foo");
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assertThat(opt).contains("foo");
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assertThat(opt).isNotEqualTo(Optional.of("foo"));
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assertThat(opt).isNotEqualTo(Optional.ofNullable("foo"));
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assertThat(opt).as("foo").isNotPresent();
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assertThat(opt).isPresent();
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assertThat(opt).as("foo").isPresent().as("bar").isPresent();
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assertThat(opt.isPresent()).as("foo").isEqualTo(false).as("bar").isTrue();
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assertThat(opt.get()).isEqualTo("foo").isSameAs("foo").isNotEqualTo("foo").isNotSameAs("foo");
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}
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}
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