Examples with CustomTypeSafeMatcher org.hamcrest.CustomTypeSafeMatcher used on opensource projects

Example 6 with CustomTypeSafeMatcher

use of org.hamcrest.CustomTypeSafeMatcher in project beam by apache.

the class DisplayDataTest method testJsonSerializationAnonymousClassNamespace.

@Test
public void testJsonSerializationAnonymousClassNamespace() throws IOException {
    HasDisplayData component = new HasDisplayData() {

        @Override
        public void populateDisplayData(Builder builder) {
            builder.add(DisplayData.item("foo", "bar"));
        }
    };
    DisplayData data = DisplayData.from(component);
    JsonNode json = MAPPER.readTree(MAPPER.writeValueAsBytes(data));
    String namespace = json.elements().next().get("namespace").asText();
    final Pattern anonClassRegex = Pattern.compile(Pattern.quote(DisplayDataTest.class.getName()) + "\\$\\d+$");
    assertThat(namespace, new CustomTypeSafeMatcher<String>("anonymous class regex: " + anonClassRegex) {

        @Override
        protected boolean matchesSafely(String item) {
            java.util.regex.Matcher m = anonClassRegex.matcher(item);
            return m.matches();
        }
    });
}