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Add test cases for Scatter Gather mediator #3830

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Dec 16, 2024
Merged

Add test cases for Scatter Gather mediator #3830

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8fe1788
Add test cases for Scatter Gather mediator
SanojPunchihewa Dec 13, 2024
e20cfa3
Normalize the JSON for Comparison
SanojPunchihewa Dec 16, 2024
903633e
Update Payload Factory XML to JSON test case
SanojPunchihewa Dec 16, 2024
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4 changes: 2 additions & 2 deletions ...so2/carbon/esb/mediator/test/payload/factory/PayloadFactorySynapseExpressionTestCase.java
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Original file line number Diff line number Diff line change
Expand Up @@ -146,8 +146,8 @@ public void testPayloadFactoryXMLToJson() throws IOException {

String expectedResponse = "{\n" +
" \"string\": \"John<\",\n" +
" \"escapedObject\": \"<pet><type>cat</type><name>emily\\\\ntini</name></pet>\",\n" +
" \"escapedObject2\": \"<pet2>\\n <type>dog&lt;</type>\\n <name>John\\\\nWayne</name>\\n </pet2>\",\n" +
" \"escapedObject\": \"<pet><type>cat</type><name>emily\\\\\\\\ntini</name></pet>\",\n" +
" \"escapedObject2\": \"<pet2>\\n <type>dog&lt;</type>\\n <name>John\\\\\\\\nWayne</name>\\n </pet2>\",\n" +
" \"object\": {\n" +
" \"pet\": {\n" +
" \"type\": \"cat\",\n" +
Expand Down
267 changes: 267 additions & 0 deletions ...-mediator-1/src/test/java/org/wso2/carbon/esb/mediator/test/v2/ScatterGatherTestCase.java
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Original file line number Diff line number Diff line change
@@ -0,0 +1,267 @@
/*
* Copyright (c) 2024, WSO2 LLC. (https://www.wso2.com) All Rights Reserved.
*
* WSO2 LLC. licenses this file to you 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.
*/

package org.wso2.carbon.esb.mediator.test.v2;

import com.google.gson.JsonElement;
import com.google.gson.JsonObject;
import com.google.gson.JsonParser;
import org.apache.http.HttpResponse;
import org.testng.Assert;
import org.testng.annotations.AfterClass;
import org.testng.annotations.BeforeClass;
import org.testng.annotations.Test;
import org.w3c.dom.Document;
import org.wso2.esb.integration.common.utils.CarbonLogReader;
import org.wso2.esb.integration.common.utils.ESBIntegrationTest;
import org.wso2.esb.integration.common.utils.clients.SimpleHttpClient;
import org.xml.sax.SAXException;

import java.io.IOException;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;

import static org.testng.Assert.assertEquals;
import static org.testng.Assert.assertTrue;

public class ScatterGatherTestCase extends ESBIntegrationTest {

SimpleHttpClient httpClient = new SimpleHttpClient();

@BeforeClass(alwaysRun = true)
public void init() throws Exception {

super.init();
}

@Test(groups = {"wso2.esb"}, description = "Testing Scatter-Gather mediator with JSON body replace")
public void testScatterGatherJSONBodyReplace() throws IOException {

String expectedResponse = "[\n" +
" {\n" +
" \"name\":\"pet1\",\n" +
" \"type\":\"dog\",\n" +
" \"requestId\":1114567\n" +
" },\n" +
" {\n" +
" \"name\":\"pet2\",\n" +
" \"type\":\"cat\",\n" +
" \"requestId\":1114567\n" +
" },\n" +
" {\n" +
" \"name\":\"pet3\",\n" +
" \"type\":\"mock-backend\",\n" +
" \"requestId\":1114567\n" +
" }\n" +
"]";

String requestPayload = "{\n" +
" \"requestId\": 1114567\n" +
"}";

String serviceURL = getMainSequenceURL() + "scatter-gather/json-body-replace";
HttpResponse httpResponse = httpClient.doPost(serviceURL, null, requestPayload, "application/json");
String responsePayload = httpClient.getResponsePayload(httpResponse);

JsonElement responseJSON = JsonParser.parseString(responsePayload);
JsonElement expectedJSON = JsonParser.parseString(expectedResponse);
assertTrue(areJsonElementsEquivalent(expectedJSON, responseJSON), "Response payload mismatched");
}

@Test(groups = {"wso2.esb"}, description = "Testing Scatter-Gather mediator with JSON and variable output")
public void testScatterGatherJSONVariableOutput() throws IOException, InterruptedException {

CarbonLogReader carbonLogReader = new CarbonLogReader();
carbonLogReader.start();

String requestPayload = "{\n" +
" \"requestId\": 1114567\n" +
"}";

String serviceURL = getMainSequenceURL() + "scatter-gather/json-variable-output";
HttpResponse httpResponse = httpClient.doPost(serviceURL, null, requestPayload, "application/json");
String responsePayload = httpClient.getResponsePayload(httpResponse);

JsonElement responseJSON = JsonParser.parseString(responsePayload);
JsonElement expectedJSON = JsonParser.parseString(requestPayload);
assertEquals(responseJSON, expectedJSON, "Response payload mismatched");

boolean logFound = carbonLogReader
.checkForLog("Scatter Gather output = [{\"name\":\"pet1\",\"type\":\"dog\",\"requestId\":1114567}," +
"{\"name\":\"pet2\",\"type\":\"cat\",\"requestId\":1114567},{\"name\":\"pet3\",\"type\":\"mock-backend\"," +
"\"requestId\":1114567}]", DEFAULT_TIMEOUT);
Assert.assertTrue(logFound, "Scatter Gather result not set to variable");
carbonLogReader.stop();
}

@Test(groups = {"wso2.esb"}, description = "Testing Scatter-Gather mediator with XML body replace")
public void testScatterGatherXMLBodyReplace() throws IOException, ParserConfigurationException, SAXException {

String expectedResponse = "<scatter_response><pet><name>pet1</name><type>cat</type><requestId>78658</requestId>" +
"</pet><pet><name>pet2</name><type>mock-backend</type><requestId>78658</requestId></pet></scatter_response>";

String requestPayload = "<root>\n" +
" <requestId>78658</requestId>\n" +
"</root>";

String serviceURL = getMainSequenceURL() + "scatter-gather/xml-body-replace";
HttpResponse httpResponse = httpClient.doPost(serviceURL, null, requestPayload, "application/xml");
String responsePayload = httpClient.getResponsePayload(httpResponse);

Document document1 = parseXML(expectedResponse);
Document document2 = parseXML(responsePayload);

if (!document1.isEqualNode(document2)) {
Assert.fail("Response payload mismatched: " + responsePayload + " expected: " + expectedResponse);
}
}

@Test(groups = {"wso2.esb"}, description = "Testing Scatter-Gather mediator with XML and variable output")
public void testScatterGatherXMLVariableOutput() throws IOException, InterruptedException, ParserConfigurationException, SAXException {

CarbonLogReader carbonLogReader = new CarbonLogReader();
carbonLogReader.start();

String requestPayload = "<root>\n" +
" <requestId>78658</requestId>\n" +
"</root>";

String serviceURL = getMainSequenceURL() + "scatter-gather/xml-variable-output";
HttpResponse httpResponse = httpClient.doPost(serviceURL, null, requestPayload, "application/xml");
String responsePayload = httpClient.getResponsePayload(httpResponse);

Document document1 = parseXML(requestPayload);
Document document2 = parseXML(responsePayload);

if (!document1.isEqualNode(document2)) {
Assert.fail("Response payload mismatched: " + responsePayload + " expected: " + requestPayload);
}

boolean logFound = carbonLogReader
.checkForLog("Scatter Gather XML output = <scatter_response><pet><name>pet1</name><type>cat</type>" +
"<requestId>78658</requestId></pet><pet><name>pet2</name><type>dog</type><requestId>78658</requestId>" +
"</pet></scatter_response>", DEFAULT_TIMEOUT);
Assert.assertTrue(logFound, "Scatter Gather result not set to variable");
carbonLogReader.stop();
}

@Test(groups = {"wso2.esb"}, description = "Testing Scatter-Gather mediator with Aggregation condition")
public void testScatterGatherJSONCondition() throws IOException {

String expectedResponse = "[\n" +
" {\n" +
" \"name\":\"pet1\",\n" +
" \"type\":\"dog\",\n" +
" \"requestId\":1114567\n" +
" },\n" +
" {\n" +
" \"name\":\"pet3\",\n" +
" \"type\":\"dog\",\n" +
" \"requestId\":1114567\n" +
" }\n" +
"]";

String requestPayload = "{\n" +
" \"requestId\": 1114567\n" +
"}";

String serviceURL = getMainSequenceURL() + "scatter-gather/aggregate-condition";
HttpResponse httpResponse = httpClient.doPost(serviceURL, null, requestPayload, "application/json");
String responsePayload = httpClient.getResponsePayload(httpResponse);

JsonElement responseJSON = JsonParser.parseString(responsePayload);
JsonElement expectedJSON = JsonParser.parseString(expectedResponse);
assertTrue(areJsonElementsEquivalent(expectedJSON, responseJSON), "Response payload mismatched");
}

@Test(groups = {"wso2.esb"}, description = "Testing Scatter-Gather mediator when a path fails")
public void testScatterGatherJSON404EPClone() throws IOException {

String expectedResponse = "[\n" +
" {\n" +
" \"name\":\"pet1\",\n" +
" \"type\":\"dog\",\n" +
" \"requestId\":1114567\n" +
" },\n" +
" {\n" +
" \"name\":\"pet3\",\n" +
" \"type\":\"dog\",\n" +
" \"requestId\":1114567\n" +
" }\n" +
"]";

String requestPayload = "{\n" +
" \"requestId\": 1114567\n" +
"}";

String serviceURL = getMainSequenceURL() + "scatter-gather/not-found-ep";
HttpResponse httpResponse = httpClient.doPost(serviceURL, null, requestPayload, "application/json");
String responsePayload = httpClient.getResponsePayload(httpResponse);

JsonElement responseJSON = JsonParser.parseString(responsePayload);
JsonElement expectedJSON = JsonParser.parseString(expectedResponse);
assertTrue(areJsonElementsEquivalent(expectedJSON, responseJSON), "Response payload mismatched");
}

private static boolean areJsonElementsEquivalent(JsonElement e1, JsonElement e2) {

if (e1.isJsonObject() && e2.isJsonObject()) {
JsonObject obj1 = e1.getAsJsonObject();
JsonObject obj2 = e2.getAsJsonObject();

if (obj1.size() != obj2.size()) {
return false;
}

for (String key : obj1.keySet()) {
if (!obj2.has(key) || !areJsonElementsEquivalent(obj1.get(key), obj2.get(key))) {
return false;
}
}
return true;
} else if (e1.isJsonArray() && e2.isJsonArray()) {
if (e1.getAsJsonArray().size() != e2.getAsJsonArray().size()) {
return false;
}

for (int i = 0; i < e1.getAsJsonArray().size(); i++) {
if (!areJsonElementsEquivalent(e1.getAsJsonArray().get(i), e2.getAsJsonArray().get(i))) {
return false;
}
}
return true;
} else {
return e1.equals(e2);
}
}

private static Document parseXML(String xml) throws IOException, ParserConfigurationException, SAXException {

DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
factory.setIgnoringElementContentWhitespace(true);
DocumentBuilder builder = factory.newDocumentBuilder();
return builder.parse(new java.io.ByteArrayInputStream(xml.getBytes()));
}

@AfterClass(alwaysRun = true)
private void destroy() throws Exception {

super.cleanup();
}
}
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