/**
* Tests that a PageHeaderIterator correctly retrieves ETag headers for 3 pages from a mocked
* server that conform to GitHub API's pagination specifications and terminates afterwards.
*
* @throws NoSuchElementException
*/
@Test
public void testHeaderIterator() throws NoSuchElementException, IOException {
MockServerClient mockServer = ClientAndServer.startClientAndServer(8888);
HttpRequest page1Request = createMockServerPagedHeaderRequest(1);
List<Header> page1Headers =
TestUtils.parseHeaderRecord(
TestUtils.readFileFromResource(this, "tests/PagedHeadersSample/page1-header.txt"));
String page1Etag = "aaf65fc6b10d5afbdc9cd0aa6e6ada4c";
HttpRequest page2Request = createMockServerPagedHeaderRequest(2);
List<Header> page2Headers =
TestUtils.parseHeaderRecord(
TestUtils.readFileFromResource(this, "tests/PagedHeadersSample/page2-header.txt"));
String page2Etag = "731501e0f7d9816305782bc4c3f70d9f";
HttpRequest page3Request = createMockServerPagedHeaderRequest(3);
List<Header> page3Headers =
TestUtils.parseHeaderRecord(
TestUtils.readFileFromResource(this, "tests/PagedHeadersSample/page3-header.txt"));
String page3Etag = "a6f367d674155d6fbbacbc2fca04917b";
setUpHeadRequestOnMockServer(mockServer, page1Request, page1Headers);
setUpHeadRequestOnMockServer(mockServer, page2Request, page2Headers);
setUpHeadRequestOnMockServer(mockServer, page3Request, page3Headers);
PagedRequest<Milestone> request = new PagedRequest<>();
Map<String, String> params = new HashMap<>();
params.put("state", "all");
GitHubClientEx client = new GitHubClientEx("localhost", 8888, "http");
String path = SEGMENT_REPOS + "/hubturbo/hubturbo" + SEGMENT_PULLS;
request.setUri(path);
request.setResponseContentType(CONTENT_TYPE_JSON);
request.setParams(params);
PageHeaderIterator iter = new PageHeaderIterator(request, client, "ETag");
assertEquals(page1Etag, Utility.stripQuotes(iter.next()));
assertEquals(page2Etag, Utility.stripQuotes(iter.next()));
assertEquals(page3Etag, Utility.stripQuotes(iter.next()));
assertFalse(iter.hasNext());
mockServer.stop();
}
private void setUpHeadRequestOnMockServer(
MockServerClient mockServer, HttpRequest request, List<Header> headers) {
mockServer.when(request).respond(response().withHeaders(headers));
}