com.github.searls.jasmine.GenerateManualRunnerMojo Maven / Gradle / Ivy

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A JavaScript unit test plugin that processes JavaScript sources and Jasmine specs, prepares test runner HTML files, executes Jasmine specs headlessly with HtmlUnit, and produces JUnit XML reports

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package com.github.searls.jasmine;

import java.io.File;
import java.io.IOException;

import org.apache.commons.io.FileUtils;
import org.apache.commons.lang.StringUtils;
import org.apache.maven.plugin.MojoExecutionException;
import org.apache.maven.plugin.MojoFailureException;

import com.github.searls.jasmine.runner.ReporterType;
import com.github.searls.jasmine.runner.SpecRunnerHtmlGenerator;


/**
 * @component
 * @goal generateManualRunner
 * @phase generate-test-sources
 */
public class GenerateManualRunnerMojo extends AbstractJasmineMojo {

	public void execute() throws MojoExecutionException, MojoFailureException {
		if(jsSrcDir.exists() && jsTestSrcDir.exists()) {
			getLog().info("Generating runner '"+manualSpecRunnerHtmlFileName+"' in the Jasmine plugin's target directory to open in a browser to facilitate faster feedback.");
			try {
				writeSpecRunnerToSourceSpecDirectory();
			} catch (Exception e) {
				throw new MojoFailureException(e,"JavaScript Test execution failed.","Failed to generate "+manualSpecRunnerHtmlFileName);
			}
		} else {
			getLog().warn("Skipping manual spec runner generation. Check to make sure that both JavaScript directories `"+jsSrcDir.getAbsolutePath()+"` and `"+jsTestSrcDir.getAbsolutePath()+"` exist.");
		}
	}

	private void writeSpecRunnerToSourceSpecDirectory() throws IOException {
		SpecRunnerHtmlGenerator htmlGenerator = new SpecRunnerHtmlGenerator(jsSrcDir,jsTestSrcDir,preloadSources, sourceEncoding);
		String runner = htmlGenerator.generate(ReporterType.TrivialReporter, customRunnerTemplate);
		
		File destination = new File(jasmineTargetDir,manualSpecRunnerHtmlFileName);
		String existingRunner = loadExistingManualRunner(destination);
		
		if(!StringUtils.equals(runner, existingRunner)) {
			FileUtils.writeStringToFile(destination, runner);
		} else {
			getLog().info("Skipping spec runner generation, because an identical spec runner already exists.");
		}
	}

	private String loadExistingManualRunner(File destination) {
		String existingRunner = null;
		try {
			if(destination.exists()) {
				existingRunner = FileUtils.readFileToString(destination);
			}
		} catch(Exception e) {
			getLog().warn("An error occurred while trying to open an existing manual spec runner. Continuing");
		}
		return existingRunner;
	}

}