@Test
public void retrieveModules() {
	final List<?> res = resources.client().target("/modules").request().get(
		List.class);

	final HashSet<?> ids = new HashSet<>(res);
	final List<ModuleInfo> mInfos = ctx.getService(ModuleService.class)
		.getModules();

	for (final ModuleInfo mInfo : mInfos) {
		final String id = ((Identifiable) mInfo).getIdentifier();
		assertTrue(ids.contains(id));
		ids.remove(id);
	}
	assertTrue(ids.isEmpty());
}
 

@Test
public void getWidget() {
	final String[] ids = { "command:net.imagej.server.external.ScriptEval",
	"command:net.imagej.server.ModulesResourceTest$Bar" };
	for (final String id : ids) {
		final String response = resources.client().target("/modules/" + id)
			.request().get(String.class);
		String expected;
		try {
			expected = jsonService.parseObject(ctx.getService(ModuleService.class)
				.getModuleById(id));
			if (!expected.equals(response)) {
				System.out.println("Expected:" + expected);
				System.out.println("Response:" + response);
			}

			// Convert JSON strings to Java collections, for easier interrogation.
			final Map<?, ?> expectedMap = jsonToMap(expected);
			final Map<?, ?> responseMap = jsonToMap(response);

			// Check that extra information is present in actual response.
			// Remove the extra fields, so that we can compare more easily.
			final String[] extraFields = {"isResolved", "startingValue"};
			for (final Object input : (Iterable<?>) responseMap.get("inputs")) {
				final Map<?, ?> inputMap = (Map<?, ?>) input;
				for (final String field : extraFields) {
					assertTrue(inputMap.containsKey(field));
					inputMap.remove(field);
				}
			}

			// Assert JSON objects are now equal.
			assertEquals(expectedMap, responseMap);
		}
		catch (JsonProcessingException exc) {
			fail(exc.getMessage());
		}

	}
}