--- a/test/jdk/java/util/Optional/BasicDouble.java Thu Mar 29 16:12:41 2018 -0700
+++ b/test/jdk/java/util/Optional/BasicDouble.java Mon Apr 02 16:11:53 2018 -0700
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 2013, 2018, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
@@ -22,108 +22,187 @@
*/
/* @test
- * @bug 8195649
* @summary Basic functional test of OptionalDouble
* @author Mike Duigou
- * @build ObscureException
* @run testng BasicDouble
*/
import java.util.NoSuchElementException;
import java.util.OptionalDouble;
import java.util.concurrent.atomic.AtomicBoolean;
+import java.util.stream.DoubleStream;
import static org.testng.Assert.*;
import org.testng.annotations.Test;
+
public class BasicDouble {
- static final double DOUBLEVAL = Math.PI;
- static final double UNEXPECTED = 6.62607004E-34;
- /**
- * Checks a block of assertions over an empty OptionalDouble.
- */
- void checkEmpty(OptionalDouble empty) {
- assertTrue(empty.equals(OptionalDouble.empty()));
- assertTrue(OptionalDouble.empty().equals(empty));
- assertFalse(empty.equals(OptionalDouble.of(UNEXPECTED)));
- assertFalse(OptionalDouble.of(UNEXPECTED).equals(empty));
- assertFalse(empty.equals("unexpected"));
+ @Test(groups = "unit")
+ public void testEmpty() {
+ OptionalDouble empty = OptionalDouble.empty();
+ OptionalDouble present = OptionalDouble.of(1.0);
- assertFalse(empty.isPresent());
- assertEquals(empty.hashCode(), 0);
- assertEquals(empty.orElse(UNEXPECTED), UNEXPECTED);
- assertEquals(empty.orElseGet(() -> UNEXPECTED), UNEXPECTED);
-
- assertThrows(NoSuchElementException.class, () -> empty.getAsDouble());
- assertThrows(NoSuchElementException.class, () -> empty.orElseThrow());
- assertThrows(ObscureException.class, () -> empty.orElseThrow(ObscureException::new));
-
- var b = new AtomicBoolean();
- empty.ifPresent(s -> b.set(true));
- assertFalse(b.get());
-
- var b1 = new AtomicBoolean(false);
- var b2 = new AtomicBoolean(false);
- empty.ifPresentOrElse(s -> b1.set(true), () -> b2.set(true));
- assertFalse(b1.get());
- assertTrue(b2.get());
+ // empty
+ assertTrue(empty.equals(empty));
+ assertTrue(empty.equals(OptionalDouble.empty()));
+ assertTrue(!empty.equals(present));
+ assertTrue(0 == empty.hashCode());
+ assertTrue(!empty.toString().isEmpty());
+ assertTrue(!empty.isPresent());
- assertEquals(empty.toString(), "OptionalDouble.empty");
- }
+ empty.ifPresent(v -> { fail(); });
- /**
- * Checks a block of assertions over an OptionalDouble that is expected to
- * have a particular value present.
- */
- void checkPresent(OptionalDouble opt, double expected) {
- assertFalse(opt.equals(OptionalDouble.empty()));
- assertFalse(OptionalDouble.empty().equals(opt));
- assertTrue(opt.equals(OptionalDouble.of(expected)));
- assertTrue(OptionalDouble.of(expected).equals(opt));
- assertFalse(opt.equals(OptionalDouble.of(UNEXPECTED)));
- assertFalse(OptionalDouble.of(UNEXPECTED).equals(opt));
- assertFalse(opt.equals("unexpected"));
+ AtomicBoolean emptyCheck = new AtomicBoolean();
+ empty.ifPresentOrElse(v -> fail(), () -> emptyCheck.set(true));
+ assertTrue(emptyCheck.get());
- assertTrue(opt.isPresent());
- assertEquals(opt.hashCode(), Double.hashCode(expected));
- assertEquals(opt.orElse(UNEXPECTED), expected);
- assertEquals(opt.orElseGet(() -> UNEXPECTED), expected);
-
- assertEquals(opt.getAsDouble(), expected);
- assertEquals(opt.orElseThrow(), expected);
- assertEquals(opt.orElseThrow(ObscureException::new), expected);
+ try {
+ empty.ifPresentOrElse(v -> fail(), () -> { throw new ObscureException(); });
+ fail();
+ } catch (ObscureException expected) {
+ } catch (AssertionError e) {
+ throw e;
+ } catch (Throwable t) {
+ fail();
+ }
- var b = new AtomicBoolean(false);
- opt.ifPresent(s -> b.set(true));
- assertTrue(b.get());
-
- var b1 = new AtomicBoolean(false);
- var b2 = new AtomicBoolean(false);
- opt.ifPresentOrElse(s -> b1.set(true), () -> b2.set(true));
- assertTrue(b1.get());
- assertFalse(b2.get());
-
- assertEquals(opt.toString(), "OptionalDouble[" + expected + "]");
+ assertEquals(2.0, empty.orElse(2.0));
+ assertEquals(2.0, empty.orElseGet(()-> 2.0));
}
@Test(groups = "unit")
- public void testEmpty() {
- checkEmpty(OptionalDouble.empty());
+ public void testIfPresentAndOrElseAndNull() {
+ OptionalDouble empty = OptionalDouble.empty();
+ OptionalDouble present = OptionalDouble.of(1.0);
+
+ // No NPE
+ present.ifPresentOrElse(v -> {}, null);
+ empty.ifPresent(null);
+ empty.ifPresentOrElse(null, () -> {});
+
+ // NPE
+ try {
+ present.ifPresent(null);
+ fail();
+ } catch (NullPointerException ex) {}
+ try {
+ present.ifPresentOrElse(null, () -> {});
+ fail();
+ } catch (NullPointerException ex) {}
+ try {
+ empty.ifPresentOrElse(v -> {}, null);
+ fail();
+ } catch (NullPointerException ex) {}
+ }
+
+ @Test(expectedExceptions=NoSuchElementException.class)
+ public void testEmptyGet() {
+ OptionalDouble empty = OptionalDouble.empty();
+
+ double got = empty.getAsDouble();
+ }
+
+ @Test(expectedExceptions=NullPointerException.class)
+ public void testEmptyOrElseGetNull() {
+ OptionalDouble empty = OptionalDouble.empty();
+
+ double got = empty.orElseGet(null);
+ }
+
+ @Test(expectedExceptions=NullPointerException.class)
+ public void testEmptyOrElseThrowNull() throws Throwable {
+ OptionalDouble empty = OptionalDouble.empty();
+
+ double got = empty.orElseThrow(null);
+ }
+
+ @Test(expectedExceptions=ObscureException.class)
+ public void testEmptyOrElseThrow() throws Exception {
+ OptionalDouble empty = OptionalDouble.empty();
+
+ double got = empty.orElseThrow(ObscureException::new);
+ }
+
+ @Test(expectedExceptions=NoSuchElementException.class)
+ public void testEmptyOrElseThrowNoArg() throws Exception {
+ OptionalDouble empty = OptionalDouble.empty();
+
+ double got = empty.orElseThrow();
}
@Test(groups = "unit")
public void testPresent() {
- checkPresent(OptionalDouble.of(DOUBLEVAL), DOUBLEVAL);
+ OptionalDouble empty = OptionalDouble.empty();
+ OptionalDouble present = OptionalDouble.of(1.0);
+
+ // present
+ assertTrue(present.equals(present));
+ assertFalse(present.equals(OptionalDouble.of(0.0)));
+ assertTrue(present.equals(OptionalDouble.of(1.0)));
+ assertTrue(!present.equals(empty));
+ assertTrue(Double.hashCode(1.0) == present.hashCode());
+ assertFalse(present.toString().isEmpty());
+ assertTrue(-1 != present.toString().indexOf(Double.toString(present.getAsDouble()).toString()));
+ assertTrue(-1 != present.toString().indexOf(Double.toString(present.orElseThrow()).toString()));
+ assertEquals(1.0, present.getAsDouble());
+ assertEquals(1.0, present.orElseThrow());
+
+ AtomicBoolean presentCheck = new AtomicBoolean();
+ present.ifPresent(v -> presentCheck.set(true));
+ assertTrue(presentCheck.get());
+ presentCheck.set(false);
+ present.ifPresentOrElse(v -> presentCheck.set(true), () -> fail());
+ assertTrue(presentCheck.get());
+
+ try {
+ present.ifPresent(v -> { throw new ObscureException(); });
+ fail();
+ } catch (ObscureException expected) {
+ } catch (AssertionError e) {
+ throw e;
+ } catch (Throwable t) {
+ fail();
+ }
+ try {
+ present.ifPresentOrElse(v -> { throw new ObscureException(); }, () -> fail());
+ fail();
+ } catch (ObscureException expected) {
+ } catch (AssertionError e) {
+ throw e;
+ } catch (Throwable t) {
+ fail();
+ }
+
+ assertEquals(1.0, present.orElse(2.0));
+ assertEquals(1.0, present.orElseGet(null));
+ assertEquals(1.0, present.orElseGet(()-> 2.0));
+ assertEquals(1.0, present.orElseGet(()-> 3.0));
+ assertEquals(1.0, present.<RuntimeException>orElseThrow(null));
+ assertEquals(1.0, present.<RuntimeException>orElseThrow(ObscureException::new));
}
@Test(groups = "unit")
- public void testStreamEmpty() {
- assertEquals(OptionalDouble.empty().stream().toArray(), new double[] { });
+ public void testStream() {
+ {
+ DoubleStream s = OptionalDouble.empty().stream();
+ assertFalse(s.isParallel());
+
+ double[] es = s.toArray();
+ assertEquals(es.length, 0);
+ }
+
+ {
+ DoubleStream s = OptionalDouble.of(42.0).stream();
+ assertFalse(s.isParallel());
+
+ double[] es = s.toArray();
+ assertEquals(es.length, 1);
+ assertEquals(es[0], 42.0);
+ }
}
- @Test(groups = "unit")
- public void testStreamPresent() {
- assertEquals(OptionalDouble.of(DOUBLEVAL).stream().toArray(), new double[] { DOUBLEVAL });
+ private static class ObscureException extends RuntimeException {
+
}
}