Java 类org.hamcrest.Matcher 实例源码

static ViewAction clickNoConstraints() {
    return new ViewAction() {
        @Override
        public Matcher<View> getConstraints() {
            return isEnabled(); // No constraints, isEnabled and isClickable are checked
        }

        @Override
        public String getDescription() {
            return "Click a view with no constraints.";
        }

        @Override
        public void perform(UiController uiController, View view) {
            view.performClick();
        }
    };
}

@Test
public void testInvokingAddConsumerCreatesAValidJsonArray() {
    _jsonObjectBuilder.field(
        "array"
    ).arrayValue(
    ).add(
        jsonObjectBuilder -> jsonObjectBuilder.field(
            "solution"
        ).numberValue(
            42
        )
    );

    @SuppressWarnings("unchecked")
    Matcher<JsonElement> isAJsonArrayWithElements = is(
        aJsonArrayThat(contains(_aJsonObjectWithTheSolution)));

    Matcher<JsonElement> isAJsonObjectWithAnArray = is(
        aJsonObjectWhere("array", isAJsonArrayWithElements));

    assertThat(getJsonObject(), isAJsonObjectWithAnArray);
}

private static Matcher<View> withIndex(final Matcher<View> matcher, final int index) {
    return new TypeSafeMatcher<View>() {
        int currentIndex = 0;

        @Override
        public void describeTo(Description description) {
            description.appendText("with index: ");
            description.appendValue(index);
            matcher.describeTo(description);
        }

        @Override
        public boolean matchesSafely(View view) {
            return matcher.matches(view) && currentIndex++ == index;
        }
    };
}

private static ViewAction showControls() {
    return new ViewAction() {
        @Override
        public Matcher<View> getConstraints() {
            return isAssignableFrom(MovieView.class);
        }

        @Override
        public String getDescription() {
            return "Show controls of MovieView";
        }

        @Override
        public void perform(UiController uiController, View view) {
            uiController.loopMainThreadUntilIdle();
            ((MovieView) view).showControls();
            uiController.loopMainThreadUntilIdle();
        }
    };
}

public static Matcher<? super HttpResponse> hasContent(final String content, final String charset) {
    return new BaseMatcher<HttpResponse>() {
        public boolean matches(Object o) {
            try {
                HttpResponse response = (HttpResponse) o;
                Reader reader = new InputStreamReader(response.getEntity().getContent(), charset);

                int intValueOfChar;
                String targetString = "";
                while ((intValueOfChar = reader.read()) != -1) {
                    targetString += (char) intValueOfChar;
                }
                reader.close();

                return targetString.equals(content);
            } catch (IOException e) {
                e.printStackTrace();
                return false;
            }
        }

        public void describeTo(Description description) {
            description.appendText(content);
        }
    };
}

private static Matcher<View> childAtPosition(
        final Matcher<View> parentMatcher, final int position) {

    return new TypeSafeMatcher<View>() {
        @Override
        public void describeTo(Description description) {
            description.appendText("Child at position " + position + " in parent ");
            parentMatcher.describeTo(description);
        }

        @Override
        public boolean matchesSafely(View view) {
            ViewParent parent = view.getParent();
            return parent instanceof ViewGroup && parentMatcher.matches(parent)
                    && view.equals(((ViewGroup) parent).getChildAt(position));
        }
    };
}

/**
 * A customized {@link Matcher} for testing that
 * if one color match the background color of current view.
 * @param backgroundColor A color int value.
 *
 * @return Match or not.
 */
public static Matcher<View> withBackgroundColor(final int backgroundColor) {
    return new TypeSafeMatcher<View>() {

        @Override
        public boolean matchesSafely(View view) {
            int color = ((ColorDrawable) view.getBackground().getCurrent()).getColor();
            return color == backgroundColor;
        }

        @Override
        public void describeTo(Description description) {
            description.appendText("with background color value: " + backgroundColor);
        }
    };
}

private static Matcher<View> childAtPosition(
        final Matcher<View> parentMatcher, final int position) {

    return new TypeSafeMatcher<View>() {
        @Override
        public void describeTo(Description description) {
            description.appendText("Child at position " + position + " in parent ");
            parentMatcher.describeTo(description);
        }

        @Override
        public boolean matchesSafely(View view) {
            ViewParent parent = view.getParent();
            return parent instanceof ViewGroup && parentMatcher.matches(parent)
                    && view.equals(((ViewGroup) parent).getChildAt(position));
        }
    };
}

/**
 * Test if the manual input activity opens.
 */
@Test
public void testGoToManual() {
    onView(withId(R.id.manual_input_button)).check(matches(allOf( isEnabled(), isClickable()))).perform(
            new ViewAction() {
                @Override
                public Matcher<View> getConstraints() {
                    return isEnabled(); // no constraints, they are checked above
                }

                @Override
                public String getDescription() {
                    return "click manual input button";
                }

                @Override
                public void perform(UiController uiController, View view) {
                    view.performClick();
                }
            }
    );
    intended(hasComponent(ManualInputActivity.class.getName()));
}

public static Matcher<View> hasBackgroundSpanOn(final String text, @ColorRes final int colorResource) {
  return new CustomTypeSafeMatcher<View>("") {
    @Override
    protected boolean matchesSafely(View view) {
      if (view == null || !(view instanceof TextView))
        return false;
      SpannableString spannableString = (SpannableString) ((TextView) view).getText();
      BackgroundColorSpan[] spans = spannableString.getSpans(0, spannableString.length(), BackgroundColorSpan.class);
      for (BackgroundColorSpan span : spans) {
        int start = spannableString.getSpanStart(span);
        int end = spannableString.getSpanEnd(span);
        CharSequence highlightedString = spannableString.subSequence(start, end);
        if (text.equals(highlightedString.toString())) {
          return span.getBackgroundColor() == view.getContext().getResources().getColor(colorResource);
        }
      }
      return false;
    }
  };
}

private static Matcher<View> childAtPosition(
        final Matcher<View> parentMatcher, final int position) {

    return new TypeSafeMatcher<View>() {
        @Override
        public void describeTo(Description description) {
            description.appendText("Child at position " + position + " in parent ");
            parentMatcher.describeTo(description);
        }

        @Override
        public boolean matchesSafely(View view) {
            ViewParent parent = view.getParent();
            return parent instanceof ViewGroup && parentMatcher.matches(parent)
                    && view.equals(((ViewGroup) parent).getChildAt(position));
        }
    };
}

public static Matcher<String> withinSecondsAfter(Seconds seconds, DateTime after) {
    return new TypeSafeMatcher<String>() {
      @Override
      public void describeTo(Description description) {
        description.appendText(String.format(
          "a date time within %s seconds after %s",
          seconds.getSeconds(), after.toString()));
      }

      @Override
      protected boolean matchesSafely(String textRepresentation) {
        //response representation might vary from request representation
        DateTime actual = DateTime.parse(textRepresentation);

        return actual.isAfter(after) &&
          Seconds.secondsBetween(after, actual).isLessThan(seconds);
      }
    };
}

public static Matcher<View> childAtPosition(
        final Matcher<View> parentMatcher, final int position) {

    return new TypeSafeMatcher<View>() {
        @Override
        public void describeTo(Description description) {
            description.appendText("Child at position " + position + " in parent ");
            parentMatcher.describeTo(description);
        }

        @Override
        public boolean matchesSafely(View view) {
            ViewParent parent = view.getParent();
            return parent instanceof ViewGroup && parentMatcher.matches(parent)
                    && view.equals(((ViewGroup) parent).getChildAt(position));
        }
    };
}

private static Matcher<UsedJourneys> used(Journey journey) {
    return new TypeSafeMatcher<UsedJourneys>() {

        @Override
        public void describeTo(Description description) {
            description.appendText("used");
            description.appendValue(journey);
        }

        @Override
        protected boolean matchesSafely(UsedJourneys journeys) {
            return journeys.used(journey);
        }

        @Override
        protected void describeMismatchSafely(UsedJourneys item, Description mismatchDescription) {
            mismatchDescription.appendText("not used");
            mismatchDescription.appendValue(journey);
        }
    };
}

public static Matcher<View> atPosition(final int position, final Matcher<View> itemMatcher) {
    return new BoundedMatcher<View, RecyclerView>(RecyclerView.class) {
        @Override
        public void describeTo(Description description) {
            description.appendText("has item at position " + position + ": ");
            itemMatcher.describeTo(description);
        }

        @Override
        protected boolean matchesSafely(final RecyclerView view) {
            RecyclerView.ViewHolder viewHolder = view.findViewHolderForAdapterPosition(position);
            if (viewHolder == null) {
                return false;
            }
            return itemMatcher.matches(viewHolder.itemView);
        }
    };
}

public static Matcher<List<AuditLogEntry>> isSameAs(
        final List<AuditLog> auditLogs) {
    return new BaseMatcher<List<AuditLogEntry>>() {
        private int errorPosition;

        @Override
        public boolean matches(Object object) {
            List<AuditLogEntry> auditLogEntries = (List<AuditLogEntry>) object;

            assertEquals(auditLogEntries.size(), auditLogs.size());
            for (int i = 0; i < auditLogEntries.size(); i++) {
                errorPosition = i;
                compareAuditLogEntry(auditLogEntries.get(i),
                        auditLogs.get(i));
            }
            return true;
        }

        @Override
        public void describeTo(Description description) {
            description
                    .appendText("AuditLogEntry is not equal with AuditLog at position "
                            + errorPosition);
        }
    };
}

@Order(5)
@Test
public void view_withCondition_thenAnd_thenNot_doesNotImplementMatcher_implementsMatching() {
    final Negated.Unfinished.And.Matcher matcher = Cortado.view().withText("test").and().not();
    assertThat(matcher).isNotInstanceOf(org.hamcrest.Matcher.class);
    assertThat(matcher).isInstanceOf(Matching.class);
}

private static <K, V> Map<K, Matcher<? super V>> toExpectationMap(Map<? extends K, ? extends V> values) {
  Map<K, Matcher<? super V>> expectedContents = new HashMap<>();
  for (Map.Entry<? extends K, ? extends V> entry : values.entrySet()) {
    expectedContents.put(entry.getKey(), Matchers.equalTo(entry.getValue()));
  }
  return expectedContents;
}

public static ViewAction waitForMatch(final Matcher<View> aViewMatcher, final long timeout) {
    return new ViewAction() {
        @Override
        public Matcher<View> getConstraints() {
            return isRoot();
        }

        @Override
        public String getDescription() {
            return "Waiting for view matching " + aViewMatcher;
        }

        @Override
        public void perform(UiController uiController, View view) {
            uiController.loopMainThreadUntilIdle();

            final long startTime = System.currentTimeMillis();
            final long endTime = startTime + timeout;

            do {
                for (View child : TreeIterables.breadthFirstViewTraversal(view)) {
                    if (aViewMatcher.matches(child)) {
                        // found
                        return;
                    }
                }


                uiController.loopMainThreadForAtLeast(50);
            } while (System.currentTimeMillis() < endTime);

            //The action has timed out.
            throw new PerformException.Builder()
                    .withActionDescription(getDescription())
                    .withViewDescription("")
                    .withCause(new TimeoutException())
                    .build();
        }
    };
}

@Test
public void onTextView_returnsProperViewInteraction() {
    //given
    final Cortado.OrAnd.ViewInteraction viewInteraction = Cortado.onTextView().withText("test");
    final Matcher<View> expectedEspressoMatcher = Matchers.allOf(
            ViewMatchers.isAssignableFrom(TextView.class),
            viewInteraction.getCortado().matchers.get(0));

    //when
    final Matcher<View> rawMatcher = viewInteraction.getCortado().get();

    //then
    Utils.assertThat(rawMatcher).isEqualTo(expectedEspressoMatcher);
}

private Matcher<? super HttpCallRecord> hasDate(final Calendar date) {
  return new CustomTypeSafeMatcher<HttpCallRecord>("has date: " + date) {
    @Override
    protected boolean matchesSafely(HttpCallRecord item) {
      Calendar actualCalendar = Calendar.getInstance();
      actualCalendar.setTime(item.getDate());
      assertThat(actualCalendar.get(DATE), is(date.get(DATE)));
      assertThat(actualCalendar.get(DAY_OF_MONTH), is(date.get(DAY_OF_MONTH)));
      assertThat(actualCalendar.get(YEAR), is(date.get(YEAR)));
      return true;
    }
  };
}

@Factory
public static Matcher<String> containsLine(final Matcher<? super String> matcher) {
    return new BaseMatcher<String>() {
        public boolean matches(Object o) {
            String str = (String) o;
            return containsLine(str, matcher);
        }

        public void describeTo(Description description) {
            description.appendText("a String that contains line that is ").appendDescriptionOf(matcher);
        }
    };
}

public static boolean containsLine(String actual, Matcher<? super String> matcher) {
    BufferedReader reader = new BufferedReader(new StringReader(actual));
    String line;
    try {
        while ((line = reader.readLine()) != null) {
            if (matcher.matches(line)) {
                return true;
            }
        }
    } catch (IOException e) {
        throw new RuntimeException(e);
    }
    return false;
}

/**
 * Returns a matcher that checks if a {@code JsonElement} is a valid JSON
 * object containing an element.
 *
 * @return the matcher that checks if a {@code JsonElement} is a valid JSON
 *         object containing an element
 */
public static Matcher<JsonElement> aJsonObjectWhere(
    String key, Matcher<? extends JsonElement> matcher) {

    Conditions.Builder builder = new Conditions.Builder();

    Conditions conditions = builder.where(
        key, matcher
    ).build();

    return aJsonObjectWith(conditions);
}

static private Matcher<OffsetDateTime> after(final OffsetDateTime border) {
    return new TypeSafeMatcher<OffsetDateTime>() {
        @Override
        public void describeTo(Description description) {
            description.appendText("Timestamp after " + border);
        }

        @Override
        protected boolean matchesSafely(OffsetDateTime item) {
            return item.isAfter(border);
        }
    };
}

private static Matcher<? super Integer> hasFlag(final int flag) {
    return new TypeSafeMatcher<Integer>() {
        @Override
        protected boolean matchesSafely(Integer i) {
            return (i & flag) == flag;
        }

        @Override
        public void describeTo(Description description) {
            description.appendText("Flag integer contains " + flag);
        }
    };
}

public Matcher<View> atPositionOnView(final int position, final int targetViewId) {

        return new TypeSafeMatcher<View>() {
            Resources resources = null;
            View childView;

            public void describeTo(Description description) {
                String idDescription = Integer.toString(recyclerViewId);
                if (this.resources != null) {
                    try {
                        idDescription = this.resources.getResourceName(recyclerViewId);
                    } catch (Resources.NotFoundException var4) {
                        idDescription = String.format("%s (resource name not found)", recyclerViewId);
                    }
                }

                description.appendText("RecyclerView with id: " + idDescription + " at position: " + position);
            }

            public boolean matchesSafely(View view) {

                this.resources = view.getResources();

                if (childView == null) {
                    RecyclerView recyclerView =
                            (RecyclerView) view.getRootView().findViewById(recyclerViewId);
                    if (recyclerView != null && recyclerView.getId() == recyclerViewId) {
                        RecyclerView.ViewHolder viewHolder = recyclerView.findViewHolderForAdapterPosition(position);
                        if (viewHolder != null) {
                            childView = viewHolder.itemView;
                        }
                    }
                    else {
                        return false;
                    }
                }

                if (targetViewId == -1) {
                    return view == childView;
                } else {
                    View targetView = childView.findViewById(targetViewId);
                    return view == targetView;
                }
            }
        };
    }

public static Matcher<FieldSpec> initializer(Matcher<String> match) {

    return new FeatureMatcher<FieldSpec, String>(match, "field initializer", "field initializer") {

      @Override
      protected String featureValueOf(FieldSpec actual) {
        return actual.initializer.toString();
      }
    };
  }

public static Matcher<List<WebElement>> sorted(final Comparator<String> comparator) {
    return new TypeSafeMatcher<List<WebElement>>() {
        @Override
        protected boolean matchesSafely(final List<WebElement> webElements) {
            return isWebElementsSortedByText(webElements, comparator);
        }

        @Override
        public void describeTo(Description description) {
        }
    };
}

/**
 * Returns a {@link Matcher} that checks if the field is a JSON Object of
 * the second embedded.
 *
 * @return a matcher for a JSON Object of the second embedded
 * @review
 */
public static Matcher<JsonElement> isAJsonObjectWithTheSecondEmbedded() {
    Conditions.Builder builder = new Conditions.Builder();

    Conditions secondEmbeddedContextConditions = builder.where(
        "embedded", IS_A_TYPE_ID_JSON_OBJECT
    ).where(
        "linked", IS_A_TYPE_ID_JSON_OBJECT
    ).where(
        "relatedCollection", IS_A_TYPE_ID_JSON_OBJECT
    ).build();

    Conditions secondEmbeddedConditions = builder.where(
        "@context", is(aJsonObjectWith(secondEmbeddedContextConditions))
    ).where(
        "@id", isALinkTo("localhost/p/second-inner-model/first")
    ).where(
        "@type", containsTheTypes("Type")
    ).where(
        "binary", isALinkTo("localhost/b/second-inner-model/first/binary")
    ).where(
        "boolean", is(aJsonBoolean(false))
    ).where(
        "embedded", isALinkTo("localhost/p/third-inner-model/first")
    ).where(
        "link", isALinkTo("community.liferay.com")
    ).where(
        "linked", isALinkTo("localhost/p/third-inner-model/second")
    ).where(
        "number", is(aJsonInt(equalTo(2017)))
    ).where(
        "relatedCollection",
        isALinkTo("localhost/p/second-inner-model/first/models")
    ).where(
        "string", is(aJsonString(equalTo("A string")))
    ).build();

    return is(aJsonObjectWith(secondEmbeddedConditions));
}

private Matcher<NodeParameters> isNodeParamsFromTxnId(final Long fromTxnId)
{
    return new BaseMatcher<NodeParameters>()
    {
        @Override
        public void describeTo(Description description)
        {
            description.appendText(NodeParameters.class.getSimpleName()+"[fromTxId="+fromTxnId+"]");
        }

        @Override
        public boolean matches(Object item)
        {
            if (!(item instanceof NodeParameters))
            {
                return false;
            }
            NodeParameters np = (NodeParameters) item;
            if (fromTxnId == null)
            {
                return np.getFromTxnId() == null;
            }
            else
            {
                return fromTxnId.equals(np.getFromTxnId());
            }
        }
    };
}

@NonNull
public static Matcher<RecyclerView.ViewHolder> withConnectedHost() {
    return new BoundedMatcher<RecyclerView.ViewHolder, HostListActivity.HostViewHolder>(HostListActivity.HostViewHolder.class) {
        @Override
        public boolean matchesSafely(HostListActivity.HostViewHolder holder) {
            return hasDrawableState(holder.icon, android.R.attr.state_checked);
        }

        @Override
        public void describeTo(Description description) {
            description.appendText("is connected status");
        }
    };
}

public static Matcher<Class<?>> containsInterceptor(final Class<?> beanClass) {
    return new BaseMatcher<Class<?>>() {
        private Class<?> testClass;

        @Override
        public boolean matches(Object object) {
            testClass = (Class<?>) object;
            Interceptors interceptors = testClass
                    .getAnnotation(Interceptors.class);

            boolean interceptorSet = false;
            if (interceptors != null) {
                for (Class<?> definedInterceptorClass : interceptors
                        .value()) {
                    if (definedInterceptorClass == beanClass) {
                        interceptorSet = true;
                    }
                }
            }

            assertTrue(interceptorSet);
            return true;
        }

        @Override
        public void describeTo(Description description) {
            description.appendText("Class " + testClass.getName()
                    + " has no interceptor " + beanClass.getName());
        }
    };
}

static Matcher<Api.Version> isAtLeast(final Api.Version lowerBound) {
  return new TypeSafeMatcher<Api.Version>() {
    @Override
    protected boolean matchesSafely(final Api.Version item) {
      return item.ordinal() >= lowerBound.ordinal();
    }

    @Override
    public void describeTo(final Description description) {
      description.appendText("Version is at least");
      description.appendValue(lowerBound);
    }
  };
}

private Matcher<Long> greaterThan(final long value) {
  return new BaseMatcher<Long>() {
    @Override public void describeTo(Description description) {
      description.appendText("> " + value);
    }

    @Override public boolean matches(Object o) {
      return ((Long)o) > value;
    }
  };
}

/**
 * Returns a {@link Matcher} that checks if the field is the JSON Object
 * containing the links of a {@code RootElement} with the provided ID.
 *
 * @param  id the ID of the {@code RootElement}
 * @return a matcher for a JSON Object with the links of a {@code
 *         RootElement} with the provided ID
 * @review
 */
public static Matcher<JsonElement> isAJsonObjectWithTheLinks(String id) {
    Conditions.Builder builder = new Conditions.Builder();

    Conditions linkConditions = builder.where(
        "binary1", isALinkTo("localhost/b/model/" + id + "/binary1")
    ).where(
        "binary2", isALinkTo("localhost/b/model/" + id + "/binary2")
    ).where(
        "embedded2", isALinkTo("localhost/p/first-inner-model/second")
    ).where(
        "link1", isALinkTo("www.liferay.com")
    ).where(
        "link2", isALinkTo("community.liferay.com")
    ).where(
        "linked1", isALinkTo("localhost/p/first-inner-model/third")
    ).where(
        "linked2", isALinkTo("localhost/p/first-inner-model/fourth")
    ).where(
        "relatedCollection1",
        isALinkTo("localhost/p/model/" + id + "/models")
    ).where(
        "relatedCollection2",
        isALinkTo("localhost/p/model/" + id + "/models")
    ).where(
        "self", isALinkTo("localhost/p/model/" + id)
    ).build();

    return is(aJsonObjectWith(linkConditions));
}

@Test
public void view_withCondition_hasProperNegatedFlag() {
    //given
    //when
    Cortado.OrAnd.Matcher matcher = Cortado.view().withText("test");

    //then
    assertThat(matcher.getCortado().negateNextMatcher).isFalse();
}

@Test
public void testInvokingBooleanValueCreatesABoolean() {
    _jsonObjectBuilder.field(
        "solution"
    ).booleanValue(
        true
    );

    Matcher<JsonElement> isAJsonObjectWithTheSolution = is(
        aJsonObjectWhere("solution", is(aJsonBoolean(true))));

    assertThat(getJsonObject(), isAJsonObjectWithTheSolution);
}

@Order(3)
@Test
public void view_withSingleCondition_implementsMatcher_doesNotImplementMatching() {
    final Cortado.OrAnd.Matcher matcher = Cortado.view().withText("test");
    assertThat(matcher).isInstanceOf(org.hamcrest.Matcher.class);
    assertThat(matcher).isNotInstanceOf(Matching.class);
}

@Test
public void onButton_returnsProperViewInteraction() {
    //given
    final Cortado.OrAnd.ViewInteraction viewInteraction = Cortado.onButton().withText("test");
    final Matcher<View> expectedEspressoMatcher = Matchers.allOf(
            ViewMatchers.isAssignableFrom(Button.class),
            viewInteraction.getCortado().matchers.get(0));

    //when
    final Matcher<View> rawMatcher = viewInteraction.getCortado().get();

    //then
    Utils.assertThat(rawMatcher).isEqualTo(expectedEspressoMatcher);
}