package edu.uci.ics.hivesterix.test.runtimefunction;

import java.io.File;
import java.util.List;

import junit.framework.Test;
import junit.framework.TestResult;
import edu.uci.ics.hivesterix.test.base.AbstractTestSuiteClass;

public class RuntimeFunctionTestSuiteGenerator extends AbstractTestSuiteClass {

	private static final String PATH_TO_QUERIES = "src/test/resources/runtimefunctionts/queries/";
	private static final String PATH_TO_RESULTS = "src/test/resources/runtimefunctionts/results/";
	private static final String PATH_TO_IGNORES = "src/test/resources/runtimefunctionts/ignore.txt";

	private static final String FILE_EXTENSION_OF_RESULTS = "result";

	public static Test suite() throws Exception {
		List<String> ignores = getIgnoreList(PATH_TO_IGNORES);
		File testData = new File(PATH_TO_QUERIES);
		File[] queries = testData.listFiles();
		RuntimeFunctionTestSuiteGenerator testSuite = new RuntimeFunctionTestSuiteGenerator();

		// set hdfs and hyracks cluster, and load test data to hdfs
		try {
			testSuite.setup();
			testSuite.loadData();
		} catch (Exception e) {
			e.printStackTrace();
			throw new IllegalStateException(e.getMessage());
		}

		for (File qFile : queries) {
			if (isIgnored(qFile.getName(), ignores))
				continue;

			if (qFile.isFile() && qFile.getName().startsWith("q16_")) {
				String resultFileName = hiveExtToResExt(qFile.getName());
				File rFile = new File(PATH_TO_RESULTS + resultFileName);
				testSuite.addTest(new RuntimeFunctionTestSuiteCaseGenerator(
						qFile, rFile));
			}
		}
		return testSuite;
	}

	private static String hiveExtToResExt(String fname) {
		int dot = fname.lastIndexOf('.');
		return fname.substring(0, dot + 1) + FILE_EXTENSION_OF_RESULTS;
	}

	/**
	 * Runs the tests and collects their result in a TestResult.
	 */
	@Override
	public void run(TestResult result) {

		int testCount = countTestCases();
		for (int i = 0; i < testCount; i++) {
			Test each = this.testAt(i);
			if (result.shouldStop())
				break;
			runTest(each, result);
		}

		// cleanup hdfs and hyracks cluster
		try {
			cleanup();
		} catch (Exception e) {
			e.printStackTrace();
			throw new IllegalStateException(e.getMessage());
		}
	}

}