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Merge pull request #20545 from jimblye/18191-Create-unit-test-for-schemaGen-script
Create a unit test for schemaGen script
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  • dev/com.ibm.ws.config.schemagen/test/com/ibm/ws/config/schemagen/internal

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‎dev/com.ibm.ws.config.schemagen/test/com/ibm/ws/config/schemagen/internal/SchemaGenTest.java‎

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package com.ibm.ws.config.schemagen.internal;
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/*******************************************************************************
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* Copyright (c) 2022 IBM Corporation and others.
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* All rights reserved. This program and the accompanying materials
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* are made available under the terms of the Eclipse Public License v1.0
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* which accompanies this distribution, and is available at
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* http://www.eclipse.org/legal/epl-v10.html
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*
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* Contributors:
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* IBM Corporation - initial API and implementation
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*******************************************************************************/
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import static org.junit.Assert.assertFalse;
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import static org.junit.Assert.assertNull;
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import static org.junit.Assert.assertTrue;
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import java.io.BufferedReader;
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import java.io.File;
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import java.io.IOException;
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import java.io.InputStreamReader;
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import org.junit.Test;
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/**
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* Tests the schemaGen command that exists in the wlp/bin directory.
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*/
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public class SchemaGenTest {
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public static final String WLP_BIN_DIR = "../build.image/wlp/bin";
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public static final String OUTPUT_FILE = "schemaGenOutput.xsd";
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public static final String HELP_OPTION = "-help";
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public static final String SCHEMAGEN_BAT = "./schemaGen.bat";
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public static final String SCHEMAGEN_LINUX_SCRIPT = "./schemaGen";
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public static final long TIMEOUT = 30_000_000_000L; // 30-second timeout
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public static final int MAX_OUTPUT_LINES = 500; // Reasonable limit to output to standard output by schemaGen
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public static final boolean IS_WINDOWS = isWindows();
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public static boolean isWindows() {
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String os = System.getProperty("os.name");
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if (os.startsWith("Win")) {
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return true;
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}
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return false;
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}
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/**
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* Test that when no parameters are passed, only basic usage info is displayed
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* @throws IOException
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*/
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@Test
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public void testSchemaGenNoParms() throws IOException {
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System.out.println("==== testSchemaGenNoParms ====");
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ProcessBuilder pb;
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Process p = null;
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try {
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if (IS_WINDOWS) {
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pb = new ProcessBuilder("cmd", "/c", SCHEMAGEN_BAT);
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} else {
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pb = new ProcessBuilder(SCHEMAGEN_LINUX_SCRIPT);
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}
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File dir = new File(WLP_BIN_DIR);
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pb.directory(dir);
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p = pb.start();
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BufferedReader br = new BufferedReader(new InputStreamReader(p.getInputStream()));
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String line;
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boolean usageAppears = false;
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boolean encodingAppears = false;
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long startTime = System.nanoTime();
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int lineCounter = 0;
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while ((line = br.readLine()) != null) {
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System.out.println(line);
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if (line.indexOf("Usage") != -1) {
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usageAppears = true;
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}
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if (line.indexOf("--encoding") != -1) {
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encodingAppears = true;
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}
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// Exit loop if we are getting hung
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if (lineCounter++ > MAX_OUTPUT_LINES) {
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System.out.println("schemaGen usage info exceeded [ " + MAX_OUTPUT_LINES + " ] lines");
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break;
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} else if (System.nanoTime() - startTime > TIMEOUT) {
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System.out.println("SchemaGen exceeded [ " + TIMEOUT + " ] ns when displaying usage Info");
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break;
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}
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}
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assertTrue("'Usage' should appear in command output", usageAppears);
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assertFalse("'--encoding' should NOT appear in command output when no arguments passed.", encodingAppears);
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System.out.println("PASSED");
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} finally {
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if ( p!= null) {
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p.destroy();
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}
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}
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}
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/**
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* Test that when -help parameter is passed that help and usage information is displayed.
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* @throws IOException
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*/
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@Test
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public void testSchemaGenHelp() throws IOException {
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System.out.println("==== testSchemaGenHelp ====");
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ProcessBuilder pb;
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Process p = null;
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try {
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if (IS_WINDOWS) {
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pb = new ProcessBuilder("cmd", "/c", SCHEMAGEN_BAT, HELP_OPTION);
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} else {
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pb = new ProcessBuilder(SCHEMAGEN_LINUX_SCRIPT, HELP_OPTION);
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}
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File dir = new File(WLP_BIN_DIR);
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pb.directory(dir);
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p = pb.start();
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BufferedReader br = new BufferedReader(new InputStreamReader(p.getInputStream()));
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String line;
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boolean usageAppears = false;
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boolean encodingAppears = false;
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long startTime = System.nanoTime();
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int lineCounter = 0;
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while ((line = br.readLine()) != null) {
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System.out.println(line);
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if (line.indexOf("Usage") != -1) {
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usageAppears = true;
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}
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if (line.indexOf("--encoding") != -1) {
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encodingAppears = true;
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}
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// Exit loop if we are getting hung
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if (lineCounter++ > MAX_OUTPUT_LINES) {
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System.out.println("schemaGen help exceeded [ " + MAX_OUTPUT_LINES + " ] lines");
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break;
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} else if (System.nanoTime() - startTime > TIMEOUT) {
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System.out.println("schemaGen exceeded [ " + TIMEOUT + " ] ns when displaying help");
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break;
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}
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}
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assertTrue("'Usage' should appear in command output", usageAppears);
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assertTrue("'--encoding' should appear in command output when " + HELP_OPTION + " is passed.", encodingAppears);
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System.out.println("PASSED");
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} finally {
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if ( p!= null) {
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p.destroy();
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}
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}
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}
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/**
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* Test that when an output file is specified as parameter that the output file is created.
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* @throws IOException
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*/
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@Test
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public void testSchemaGenOutput() throws IOException {
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System.out.println("==== testSchemaGenOutput ====");
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ProcessBuilder pb;
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Process p = null;
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try {
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if (IS_WINDOWS) {
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pb = new ProcessBuilder("cmd", "/c", SCHEMAGEN_BAT, OUTPUT_FILE);
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} else {
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pb = new ProcessBuilder(SCHEMAGEN_LINUX_SCRIPT, OUTPUT_FILE);
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}
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File dir = new File(WLP_BIN_DIR);
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pb.directory(dir);
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p = pb.start();
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BufferedReader br = new BufferedReader(new InputStreamReader(p.getInputStream()));
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// The command should not generate any output to stdio or stderr
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assertNull("Stream should be null", br.readLine());
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// It should, however, generate the output file.
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File outputFile = new File(WLP_BIN_DIR + "/" + OUTPUT_FILE);
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assertTrue("File [" + outputFile.getName() + "] should exist.", outputFile.exists());
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outputFile.delete(); // clean up
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System.out.println("PASSED");
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} finally {
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if ( p!= null) {
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p.destroy();
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}
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}
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}
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}

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