Java Code Examples for org.cactoos.list.ListOf

@Test
public void extractHeadersFromDict() {
    final List<Kvp> kvps = new ListOf<>(
        new Headers.Of(
            new HashDict(
                new KvpOf("test", "test"),
                new KvpOf("h.kfirst", "first"),
                new KvpOf("h.ksecond", "second")
            )
        )
    );
    MatcherAssert.assertThat(
        kvps.size(),
        new IsEqual<>(2)
    );
    MatcherAssert.assertThat(
        kvps.get(0).key(),
        new IsEqual<>("kfirst")
    );
    MatcherAssert.assertThat(
        kvps.get(1).key(),
        new IsEqual<>("ksecond")
    );
}
 

@SuppressWarnings("unchecked")
@Test
public void containsAllHeadersNames() {
    MatcherAssert.assertThat(
        "Can't get the header names",
        Collections.list(
            new HttpServletRequestFake(
                new RqWithHeaders(
                    new RqFake(),
                    "AnyHeader: anyValue",
                    "CrazyHeader: crazyValue"
                )
            ).getHeaderNames()
        ),
        new IsIterableContainingInAnyOrder<>(
            new ListOf<>(
                new IsEqual<>("host"),
                new IsEqual<>("crazyheader"),
                new IsEqual<>("anyheader")
            )
        )
    );
}
 

@Test
public void canBeConstructedFromText() throws Exception {
    final Iterator<Byte> itr = new IteratorOfBytes(
        new TextOf("ABC")
    );
    new Assertion<>(
        "Must have 3 elements",
        new ListOf<>(
            itr.next(),
            itr.next(),
            itr.next(),
            itr.hasNext()
        ),
        new HasValues<Object>(
            (byte) 'A', (byte) 'B', (byte) 'C', false
        )
    ).affirm();
}
 

@Test
@SuppressWarnings("unchecked")
public void partitionedLastPartitionSmaller() {
    new Assertion<>(
        "Can't generate a Partitioned of size 2 last partition smaller.",
        new ListOf<>(
            new Partitioned<>(2, new ListOf<>(1, 2, 3).iterator())
        ),
        new IsEqual<>(
            new ListOf<>(
                new ListOf<>(1, 2),
                new ListOf<>(3)
            )
        )
    ).affirm();
}
 

@Test
public void takesDefaultContentType() {
    MatcherAssert.assertThat(
        new HtContentType(
            new HtHead(
                new InputOf(
                    new Joined(
                        "\r\n",
                        "HTTP/1.1 200 OK",
                        "",
                        "Hello, dude!"
                    )
                )
            )
        ).value(),
        new IsEqual<>(new ListOf<>("application/octet-stream"))
    );
}
 

/**
 * Ctor.
 * @param threads The quantity of threads which will be used within the
 *  {@link ExecutorService}.
 * @param tasks The tasks to be executed concurrently.
 * @param timeout The maximum time to wait.
 * @param unit The time unit of the timeout argument.
 * @checkstyle IndentationCheck (20 lines)
 * @checkstyle ParameterNumberCheck (5 lines)
 */
public Timed(
    final int threads,
    final Iterable<Scalar<T>> tasks,
    final long timeout,
    final TimeUnit unit
) {
    this(
        todo -> {
            final ExecutorService executor = Executors.newFixedThreadPool(
                threads
            );
            try {
                return executor.invokeAll(new ListOf<>(todo), timeout, unit);
            } finally {
                executor.shutdown();
            }
        },
        tasks
    );
}
 

/**
 * Tests the bug described in #577.
 *
 * @throws Exception If there is some error inside
 */
@Test
@Ignore("See puzzle above")
public void contentDispositionShouldBeRecognized() throws Exception {
    new RqMtFake(
        new RqFake(),
        new RqWithHeader(
            new RqFake(new ListOf<>(""), ""),
            new FormattedText(
                RqMtFakeTest.CONTENT_DISP, "name=\"field1\""
            ).asString()
        ),
        new RqWithHeader(
            new RqFake("", "", "field2Value"),
            new FormattedText(
                RqMtFakeTest.CONTENT_DISP, "name=\"field2\""
            ).asString()
        )
    );
}
 

@Test
public void worksInThreads() {
    new Assertion<>(
        "must work well in multiple threads",
        scalar -> {
            new Assertion<>(
                "must compute value once",
                scalar,
                new ScalarHasValue<>(scalar.value())
            ).affirm();
            return true;
        },
        new RunsInThreads<>(
            new Unchecked<>(
                new Solid<>(() -> new ListOf<>(1, 2))
            )
        )
    ).affirm();
}
 

/**
 * FbStatus can react to Condition.
 * @throws Exception If some problem inside
 */
@Test
public void reactsToCondition() throws Exception {
    final RqFallback req = new RqFallback.Fake(
        HttpURLConnection.HTTP_MOVED_PERM
    );
    MatcherAssert.assertThat(
        new RsPrint(
            new FbStatus(
                new Filtered<>(
                    status -> {
                        return status == HttpURLConnection.HTTP_MOVED_PERM
                            || status == HttpURLConnection.HTTP_MOVED_TEMP;
                    },
                    new ListOf<>(
                        HttpURLConnection.HTTP_MOVED_PERM,
                        HttpURLConnection.HTTP_MOVED_TEMP
                    )
                ),
                new FbFixed(new RsText("response text"))
            ).route(req).get()
        ).printBody(),
        Matchers.startsWith("response")
    );
}
 

@Test
public void mustSortIntegerArrayAsSetInAscendingOrder() {
    new Assertion<>(
        "Must keep unique integer numbers sorted",
        new Sorted<>(
            Integer::compareTo,
            2, 1, 3, 2, 1
        ),
        new IsIterableContainingInOrder<>(
            new ListOf<Matcher<? super Integer>>(
                new IsEqual<>(1),
                new IsEqual<>(2),
                new IsEqual<>(3)
            )
        )
    ).affirm();
}
 

@Test
public void mustSortTextIterableAsSetUsingCustomCOmparator() {
    new Assertion<>(
        "Must keep unique integer numbers sorted in descending order",
        new Sorted<>(
            (first, second) -> {
                final String left = new UncheckedText(first).asString();
                final String right = new UncheckedText(second).asString();
                return left.compareTo(right);
            },
            new TextOf("cd"),
            new TextOf("ab"),
            new TextOf("gh"),
            new TextOf("ef")
        ),
        new IsIterableContainingInOrder<>(
            new ListOf<Matcher<? super Text>>(
                new IsEqual<>(new TextOf("ab")),
                new IsEqual<>(new TextOf("cd")),
                new IsEqual<>(new TextOf("ef")),
                new IsEqual<>(new TextOf("gh"))
            )
        )
    ).affirm();
}
 

@Test
public void mustNotBeEqualToSortedSet() {
    new Assertion<>(
        "Sorted set must not be equal to the tested collection",
        new Sorted<>(
            Integer::compareTo,
            2, 1, 3, 2, 1
        ),
        new IsNot<>(
            new IsIterableContainingInOrder<>(
                new ListOf<Matcher<? super Integer>>(
                    new IsEqual<>(1),
                    new IsEqual<>(3),
                    new IsEqual<>(2)
                )
            ))
    ).affirm();
}
 

@Test
@SuppressWarnings("unchecked")
public void partitionedOne() {
    MatcherAssert.assertThat(
        "Can't generate a Partitioned of partition size 1.",
        new ArrayList<>(
            new ListOf<>(
                new Partitioned<>(1, new ListOf<>(1, 2, 3).iterator())
            )
        ),
        Matchers.equalTo(
            new ListOf<>(
                Collections.singletonList(1), Collections.singletonList(2),
                Collections.singletonList(3)
            )
        )
    );
}
 

@Test
public void reversesIterator() {
    new Assertion<>(
        "Must reverse the iterator",
        new ListOf<>(
            new Reversed<>(
                new IteratorOf<>("c", "a", "c", "t", "o", "o", "s")
            )
        ),
        new IsEqual<>(
            new ListOf<>(
                new IteratorOf<>("s", "o", "o", "t", "c", "a", "c")
            )
        )
    ).affirm();
}
 

@Test
public void containsContentInRequestBody() throws IOException {
    final String content = "My name is neo!";
    MatcherAssert.assertThat(
        "Can't add a body to servlet request",
        new RqPrint(
            new RqFrom(
                new HttpServletRequestFake(
                    new RqFake(
                        new ListOf<>(RqFromTest.EOL),
                        content
                    )
                )
            )
        ).printBody(),
        new StringContains(content)
    );
}
 

/**
 * Ctor.
 * @param check Check
 * @param fallback Fallback
 */
@SuppressWarnings
    (
        {
            "PMD.CallSuperInConstructor",
            "PMD.ConstructorOnlyInitializesOrCallOtherConstructors"
        }
    )
public FbStatus(final Iterable<Integer> check,
    final Scalar<Fallback> fallback) {
    super(
        new Fallback() {
            @Override
            public Opt<Response> route(final RqFallback req)
                throws Exception {
                Opt<Response> rsp = new Opt.Empty<>();
                if (new ListOf<>(check).contains(req.code())) {
                    rsp = fallback.get().route(req);
                }
                return rsp;
            }
        }
    );
}
 

@Test
public final void testIntegerFibonacciRange() {
    MatcherAssert.assertThat(
        "Can't generate a range of fibonacci integers",
        new ListOf<>(
            new RangeOf<>(
                1,
                100,
                new Func<Integer, Integer>() {
                    private int last;
                    @Override
                    public Integer apply(
                        final Integer input) throws Exception {
                        final int next = this.last + input;
                        this.last = input;
                        return next;
                    }
                }
            )
        ),
        Matchers.contains(1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89)
    );
}
 

/**
 * Ctor.
 * @param prms List of Param
 */
public ParamsNamed(final Param... prms) {
    this.prms = new Unchecked<>(
        new Sticky<>(
            () -> new ListOf<>(prms)
        )
    );
}
 

@Test
public void syncIteratorReturnsCorrectValuesWithInternalLock() {
    new Assertion<>(
        "Unexpected value found.",
        new ListOf<>(
            new Synced<>(
                new IteratorOf<>("a", "b")
            )
        ).toArray(),
        new IsEqual<>(new Object[]{"a", "b"})
    ).affirm();
}
 

@Test
public void compileToXml() throws Exception {
    MatcherAssert.assertThat(
        XhtmlMatchers.xhtml(
            new Xembler(
                new XmlTypeDef(
                    "Book",
                    new ListOf<>(
                        "Text"
                    ),
                    new ListOf<>(
                        new Method(
                            "page",
                            Collections.emptyList(),
                            "Page"
                        )
                    )
                )
            ).xml()
        ),
        Matchers.allOf(
            XhtmlMatchers.hasXPath("/type[@name = 'Book']"),
            XhtmlMatchers.hasXPath("/type/super/type[@name = 'Text']"),
            XhtmlMatchers.hasXPath("/type/methods[count(method) = 1]")
        )
    );
}
 

@Test
@SuppressWarnings("unchecked")
public void partitionedEqualSize() {
    MatcherAssert.assertThat(
        "Can't generate a Partitioned of partition size 2.",
        new ArrayList<>(
            new ListOf<>(
                new Partitioned<>(2, new ListOf<>(1, 2, 3, 4).iterator())
            )
        ),
        Matchers.equalTo(
            new ListOf<>(new ListOf<>(1, 2), new ListOf<>(3, 4))
        )
    );
}
 

@Test
public void withDoubleCollection() {
    MatcherAssert.assertThat(
        new MinOf(
            new ListOf<>(1.0d, 2.0d, 3.0d, 4.0d).toArray(new Double[4])
        ).intValue(),
        Matchers.equalTo(1)
    );
    MatcherAssert.assertThat(
        new MinOf(
            new ListOf<>(1.0d, 2.0d, 3.0d, 4.0d).toArray(new Double[4])
        ).longValue(),
        Matchers.equalTo(1L)
    );
    MatcherAssert.assertThat(
        new MinOf(
            new ListOf<>(1.0d, 2.0d, 3.0d, 4.0d).toArray(new Double[4])
        ).doubleValue(),
        Matchers.equalTo(1.0d)
    );
    MatcherAssert.assertThat(
        new MinOf(
            new ListOf<>(1.0d, 2.0d, 3.0d, 4.0d).toArray(new Double[4])
        ).floatValue(),
        Matchers.equalTo(1.0f)
    );
}
 

/**
 * Ctor.
 * @param maps Maps to merge.
 */
@SafeVarargs
public Merged(final Map<K, V>... maps) {
    super(() -> new MapOf<>(
        new ListOf<>(maps)
            .stream()
            .flatMap(map -> map.entrySet().stream())
            .collect(Collectors.toList())
        )
    );
}
 

@Test
public void worksWithExecServiceProcValues() throws Exception {
    final List<Integer> list = new Synced<>(new ListOf<>());
    final ExecutorService service = Executors.newSingleThreadExecutor();
    new AndInThreads(
        service,
        new ProcNoNulls<Integer>(list::add),
        1, 2
    ).value();
    MatcherAssert.assertThat(
        list,
        new IsIterableContainingInAnyOrder<Integer>(
            new ListOf<Matcher<? super Integer>>(
                new MatcherOf<>(
                    value -> {
                        return value.equals(1);
                    }
                ),
                new MatcherOf<>(
                    value -> {
                        return value.equals(2);
                    }
                )
            )
        )
    );
}
 

/**
 * Ctor.
 * @param exc The executor.
 * @param tasks The tasks to be executed concurrently.
 * @param timeout The maximum time to wait.
 * @param unit The time unit of the timeout argument.
 * @checkstyle ParameterNumberCheck (5 lines)
 */
public Timed(
    final ExecutorService exc,
    final Iterable<Scalar<T>> tasks,
    final long timeout,
    final TimeUnit unit
) {
    this(
        input -> exc.invokeAll(new ListOf<>(input), timeout, unit),
        tasks
    );
}
 

/**
 * New formatted string with specified locale.
 *
 * @param ptn Pattern
 * @param locale Format locale
 * @param arguments Arguments
 */
public FormattedText(
    final String ptn,
    final Locale locale,
    final Object... arguments
) {
    this(ptn, locale, new ListOf<>(arguments));
}
 

/**
 * New formatted string with specified locale.
 *
 * @param ptn Pattern
 * @param locale Format locale
 * @param arguments Arguments
 */
public FormattedText(
    final Text ptn,
    final Locale locale,
    final Object... arguments
) {
    this(ptn, locale, new ListOf<>(arguments));
}
 

@Test
public void lengthOfEmptyIterator() {
    new Assertion<>(
        "Must calculate length of empty iterator",
        new LengthOf(
            new ListOf<>()
        ).intValue(),
        new IsEqual<>(0)
    ).affirm();
}
 

@Override
public SumOf value() {
    return new SumOf(
        new IterableOf<>(
            new ListOf<>(this.scalars)
                .stream()
                .map(
                    scalar -> new Unchecked<>(scalar).value()
                ).collect(Collectors.toList())
        )
    );
}
 

@Test
public void withIterableOfInts() {
    final Collection<Integer> ints = new ListOf<>(1, 2, 3, 4);
    MatcherAssert.assertThat(
        new SumOf(ints).intValue(),
        new IsEqual<>(10)
    );
}