diff options
Diffstat (limited to 'rest-services/http-client/src/test/java/org/onap/dcaegen2/services/sdk/rest/services/adapters/http/RxHttpClientTest.java')
| -rw-r--r-- | rest-services/http-client/src/test/java/org/onap/dcaegen2/services/sdk/rest/services/adapters/http/RxHttpClientTest.java | 402 |
1 files changed, 402 insertions, 0 deletions
diff --git a/rest-services/http-client/src/test/java/org/onap/dcaegen2/services/sdk/rest/services/adapters/http/RxHttpClientTest.java b/rest-services/http-client/src/test/java/org/onap/dcaegen2/services/sdk/rest/services/adapters/http/RxHttpClientTest.java new file mode 100644 index 00000000..c80bda1f --- /dev/null +++ b/rest-services/http-client/src/test/java/org/onap/dcaegen2/services/sdk/rest/services/adapters/http/RxHttpClientTest.java @@ -0,0 +1,402 @@ +/* + * ============LICENSE_START==================================== + * DCAEGEN2-SERVICES-SDK + * ========================================================= + * Copyright (C) 2019-2022 Nokia. All rights reserved. + * ========================================================= + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * ============LICENSE_END===================================== + */ + +package org.onap.dcaegen2.services.sdk.rest.services.adapters.http; + +import io.netty.handler.codec.http.HttpResponseStatus; +import io.netty.handler.timeout.ReadTimeoutException; +import io.vavr.Tuple; +import io.vavr.collection.HashSet; +import org.junit.jupiter.api.AfterAll; +import org.junit.jupiter.api.Test; +import org.onap.dcaegen2.services.sdk.rest.services.adapters.http.config.ImmutableConnectionPoolConfig; +import org.onap.dcaegen2.services.sdk.rest.services.adapters.http.config.ImmutableRetryConfig; +import org.onap.dcaegen2.services.sdk.rest.services.adapters.http.config.ImmutableRxHttpClientConfig; +import org.onap.dcaegen2.services.sdk.rest.services.adapters.http.exceptions.HttpException; +import org.onap.dcaegen2.services.sdk.rest.services.adapters.http.exceptions.RetryableException; +import org.onap.dcaegen2.services.sdk.rest.services.adapters.http.test.DummyHttpServer; +import reactor.core.publisher.Mono; +import reactor.test.StepVerifier; + +import java.net.ConnectException; +import java.net.MalformedURLException; +import java.net.URL; +import java.time.Duration; +import java.util.concurrent.atomic.AtomicInteger; + +import static org.assertj.core.api.Assertions.assertThat; +import static org.onap.dcaegen2.services.sdk.rest.services.adapters.http.test.DummyHttpServer.sendInOrderWithDelay; +import static org.onap.dcaegen2.services.sdk.rest.services.adapters.http.test.DummyHttpServer.sendString; + +class RxHttpClientTest { + + private static final Duration TIMEOUT = Duration.ofHours(5); + private static final Duration NO_DELAY = Duration.ofSeconds(0); + private static final int RETRY_COUNT = 1; + private static final int EXPECTED_REQUESTS_WHEN_RETRY = RETRY_COUNT + 1; + private static final DummyHttpServer HTTP_SERVER = initialize(); + private static final DummyHttpServer DISPOSED_HTTP_SERVER = initialize().closeAndGet(); + private static final Mono<String> OK = Mono.just("OK"); + private static final Duration RETRY_INTERVAL = Duration.ofMillis(1); + private static AtomicInteger REQUEST_COUNTER; + + private static DummyHttpServer initialize() { + return DummyHttpServer.start(routes -> routes + .get("/sample-get", (req, resp) -> sendString(resp, OK)) + .get("/delay-get", (req, resp) -> + sendInOrderWithDelay(REQUEST_COUNTER, Tuple.of(resp, 200, Duration.ofSeconds(3)))) + .get("/sample-get-500", (req, resp) -> resp.status(HttpResponseStatus.INTERNAL_SERVER_ERROR).send()) + .get("/retry-get-500", (req, resp) -> + sendInOrderWithDelay(REQUEST_COUNTER, + Tuple.of(resp, 500, NO_DELAY), Tuple.of(resp, 500, NO_DELAY))) + .get("/retry-get-400", (req, resp) -> + sendInOrderWithDelay(REQUEST_COUNTER, Tuple.of(resp, 400, NO_DELAY))) + .get("/retry-get-500-200", (req, resp) -> + sendInOrderWithDelay(REQUEST_COUNTER, + Tuple.of(resp, 500, NO_DELAY), Tuple.of(resp, 200, NO_DELAY))) + .get("/retry-get-200", (req, resp) -> + sendInOrderWithDelay(REQUEST_COUNTER, Tuple.of(resp, 200, NO_DELAY))) + .post("/headers-post", (req, resp) -> resp + .sendString(Mono.just(req.requestHeaders().toString()))) + .post("/echo-post", (req, resp) -> resp.send(req.receive().retain())) + ); + } + + @AfterAll + static void tearDownClass() { + HTTP_SERVER.close(); + } + + @Test + void simpleGet() throws Exception { + // given + final HttpRequest httpRequest = requestFor("/sample-get") + .method(HttpMethod.GET) + .build(); + final RxHttpClient cut = RxHttpClientFactory.create(); + + // when + final Mono<String> bodyAsString = cut.call(httpRequest) + .doOnNext(HttpResponse::throwIfUnsuccessful) + .map(HttpResponse::bodyAsString); + + // then + StepVerifier.create(bodyAsString) + .expectNext("OK") + .expectComplete() + .verify(TIMEOUT); + } + + @Test + void getWithError() throws Exception { + // given + final HttpRequest httpRequest = requestFor("/sample-get-500") + .method(HttpMethod.GET) + .build(); + final RxHttpClient cut = RxHttpClientFactory.create(); + + // when + final Mono<String> bodyAsString = cut.call(httpRequest) + .doOnNext(HttpResponse::throwIfUnsuccessful) + .map(HttpResponse::bodyAsString); + + // then + StepVerifier.create(bodyAsString) + .expectError(HttpException.class) + .verify(TIMEOUT); + } + + @Test + void simplePost() throws Exception { + // given + final String requestBody = "hello world"; + final HttpRequest httpRequest = requestFor("/echo-post") + .method(HttpMethod.POST) + .body(RequestBody.fromString(requestBody)) + .build(); + final RxHttpClient cut = RxHttpClientFactory.create(); + + // when + final Mono<String> bodyAsString = cut.call(httpRequest) + .doOnNext(HttpResponse::throwIfUnsuccessful) + .map(HttpResponse::bodyAsString); + + // then + StepVerifier.create(bodyAsString) + .expectNext(requestBody) + .expectComplete() + .verify(TIMEOUT); + } + + @Test + void testChunkedEncoding() throws Exception { + // given + final String requestBody = "hello world"; + final HttpRequest httpRequest = requestFor("/headers-post") + .method(HttpMethod.POST) + .body(RequestBody.chunkedFromString(Mono.just(requestBody))) + .build(); + final RxHttpClient cut = RxHttpClientFactory.create(); + + // when + final Mono<String> bodyAsString = cut.call(httpRequest) + .doOnNext(HttpResponse::throwIfUnsuccessful) + .map(HttpResponse::bodyAsString); + + // then + StepVerifier.create(bodyAsString.map(String::toLowerCase)) + .consumeNextWith(responseBody -> { + assertThat(responseBody).contains("transfer-encoding: chunked"); + assertThat(responseBody).doesNotContain("content-length"); + }) + .expectComplete() + .verify(TIMEOUT); + } + + @Test + void testUnchunkedEncoding() throws Exception { + // given + final String requestBody = "hello world"; + final HttpRequest httpRequest = requestFor("/headers-post") + .method(HttpMethod.POST) + .body(RequestBody.fromString(requestBody)) + .build(); + final RxHttpClient cut = RxHttpClientFactory.create(); + + // when + final Mono<String> bodyAsString = cut.call(httpRequest) + .doOnNext(HttpResponse::throwIfUnsuccessful) + .map(HttpResponse::bodyAsString); + + // then + StepVerifier.create(bodyAsString.map(String::toLowerCase)) + .consumeNextWith(responseBody -> { + assertThat(responseBody).doesNotContain("transfer-encoding"); + assertThat(responseBody).contains("content-length"); + }) + .expectComplete() + .verify(TIMEOUT); + } + + @Test + void getWithTimeoutError() throws Exception { + // given + REQUEST_COUNTER = new AtomicInteger(); + final HttpRequest httpRequest = requestFor("/delay-get") + .method(HttpMethod.GET) + .timeout(Duration.ofMillis(1)) + .build(); + final RxHttpClient cut = RxHttpClientFactory.create(ImmutableRxHttpClientConfig.builder().build()); + + // when + final Mono<HttpResponse> response = cut.call(httpRequest); + + // then + StepVerifier.create(response) + .expectError(ReadTimeoutException.class) + .verify(TIMEOUT); + assertNoServerResponse(); + } + + @Test + void getWithConnectExceptionWhenClosedServer() throws Exception { + // given + REQUEST_COUNTER = new AtomicInteger(); + final HttpRequest httpRequest = requestForClosedServer("/sample-get") + .method(HttpMethod.GET) + .build(); + final RxHttpClient cut = RxHttpClientFactory.create(ImmutableRxHttpClientConfig.builder() + .retryConfig(defaultRetryConfig() + .customRetryableExceptions(HashSet.of(ConnectException.class)) + .build()) + .build()); + + // when + final Mono<HttpResponse> response = cut.call(httpRequest); + + // then + StepVerifier.create(response) + .expectError(ConnectException.class) + .verify(TIMEOUT); + assertNoServerResponse(); + } + + @Test + void getWithRetryableExceptionWhen500() throws Exception { + // given + REQUEST_COUNTER = new AtomicInteger(); + final HttpRequest httpRequest = requestFor("/retry-get-500") + .method(HttpMethod.GET) + .build(); + final RxHttpClient cut = RxHttpClientFactory.create(ImmutableRxHttpClientConfig.builder() + .retryConfig(defaultRetryConfig() + .retryableHttpResponseCodes(HashSet.of(500)) + .build()) + .build()); + + // when + final Mono<HttpResponse> response = cut.call(httpRequest); + + // then + StepVerifier.create(response) + .expectError(RetryableException.class) + .verify(TIMEOUT); + assertRetry(); + } + + @Test + void getWithRetryWhen500AndThen200() throws Exception { + // given + REQUEST_COUNTER = new AtomicInteger(); + final HttpRequest httpRequest = requestFor("/retry-get-500-200") + .method(HttpMethod.GET) + .build(); + final RxHttpClient cut = RxHttpClientFactory.create(ImmutableRxHttpClientConfig.builder() + .retryConfig(defaultRetryConfig() + .retryableHttpResponseCodes(HashSet.of(500)) + .build()) + .build()); + + // when + final Mono<String> bodyAsString = cut.call(httpRequest) + .doOnNext(HttpResponse::throwIfUnsuccessful) + .map(HttpResponse::bodyAsString); + + // then + StepVerifier.create(bodyAsString) + .expectNext("OK") + .expectComplete() + .verify(TIMEOUT); + assertRetry(); + } + + @Test + void getWithoutRetryWhen200() throws Exception { + // given + REQUEST_COUNTER = new AtomicInteger(); + final HttpRequest httpRequest = requestFor("/retry-get-200") + .method(HttpMethod.GET) + .build(); + final RxHttpClient cut = RxHttpClientFactory.create(ImmutableRxHttpClientConfig.builder() + .retryConfig(defaultRetryConfig() + .retryableHttpResponseCodes(HashSet.of(500)) + .build()) + .build()); + + // when + final Mono<String> bodyAsString = cut.call(httpRequest) + .doOnNext(HttpResponse::throwIfUnsuccessful) + .map(HttpResponse::bodyAsString); + + // then + StepVerifier.create(bodyAsString) + .expectNext("OK") + .expectComplete() + .verify(TIMEOUT); + assertNoRetry(); + } + + @Test + void getWithoutRetryWhen400() throws Exception { + // given + REQUEST_COUNTER = new AtomicInteger(); + final HttpRequest httpRequest = requestFor("/retry-get-400") + .method(HttpMethod.GET) + .build(); + final RxHttpClient cut = RxHttpClientFactory.create(ImmutableRxHttpClientConfig.builder() + .retryConfig(defaultRetryConfig() + .retryableHttpResponseCodes(HashSet.of(500)) + .build()) + .build()); + + // when + Mono<HttpResponse> result = cut.call(httpRequest); + + // then + StepVerifier.create(result) + .consumeNextWith(this::assert400) + .expectComplete() + .verify(TIMEOUT); + assertNoRetry(); + } + + @Test + void simpleGetWithCustomConnectionPool() throws Exception { + // given + final HttpRequest httpRequest = requestFor("/sample-get") + .method(HttpMethod.GET) + .build(); + final RxHttpClient cut = RxHttpClientFactory.create(ImmutableRxHttpClientConfig.builder() + .connectionPool(defaultConnectionPoolConfig()) + .build()); + + // when + final Mono<String> bodyAsString = cut.call(httpRequest) + .doOnNext(HttpResponse::throwIfUnsuccessful) + .map(HttpResponse::bodyAsString); + + // then + StepVerifier.create(bodyAsString) + .expectNext("OK") + .expectComplete() + .verify(TIMEOUT); + } + + private ImmutableHttpRequest.Builder requestFor(String path) throws MalformedURLException { + return ImmutableHttpRequest.builder() + .url(new URL("http", HTTP_SERVER.host(), HTTP_SERVER.port(), path).toString()); + } + + private ImmutableHttpRequest.Builder requestForClosedServer(String path) throws MalformedURLException { + return ImmutableHttpRequest.builder() + .url(new URL("http", DISPOSED_HTTP_SERVER.host(), DISPOSED_HTTP_SERVER.port(), path).toString()); + } + + private ImmutableRetryConfig.Builder defaultRetryConfig() { + return ImmutableRetryConfig.builder() + .retryCount(RETRY_COUNT) + .retryInterval(RETRY_INTERVAL); + } + + private void assertRetry() { + assertThat(REQUEST_COUNTER.get()).isEqualTo(EXPECTED_REQUESTS_WHEN_RETRY); + } + + private void assertNoRetry() { + assertThat(REQUEST_COUNTER.get()).isOne(); + } + + private void assertNoServerResponse() { + assertThat(REQUEST_COUNTER.get()).isZero(); + } + + private void assert400(HttpResponse httpResponse) { + assertThat(httpResponse.statusCode()).isEqualTo(400); + } + + private ImmutableConnectionPoolConfig defaultConnectionPoolConfig(){ + return ImmutableConnectionPoolConfig + .builder() + .connectionPool(1) + .maxIdleTime(Duration.ofSeconds(5)) + .maxLifeTime(Duration.ofSeconds(10)) + .build(); + } +} |