Homework 3

test/cd/AbstractTestAgainstFrozenReference.java

@@ -1,171 +0,0 @@
-package cd;
-
-import java.io.File;
-import java.io.FileNotFoundException;
-import java.io.FileReader;
-import java.io.IOException;
-import java.io.InputStream;
-import java.io.PrintStream;
-import java.util.List;
-import java.util.concurrent.TimeUnit;
-
-import org.junit.Assert;
-import org.junit.Rule;
-import org.junit.Test;
-import org.junit.rules.DisableOnDebug;
-import org.junit.rules.TestRule;
-import org.junit.rules.Timeout;
-
-import cd.frontend.parser.ParseFailure;
-import cd.ir.Ast.ClassDecl;
-import cd.util.FileUtil;
-import cd.util.debug.AstDump;
-
-abstract public class AbstractTestAgainstFrozenReference {
-    
-	public static final String SEMANTIC_OK = "OK";
-    public static final String PARSE_FAILURE = "ParseFailure";
-	
-    public File file, sfile, binfile, infile;
-	public File parserreffile, semanticreffile, execreffile, cfgreffile, rdreffile,
-	        nnreffile, optreffile;
-	public File errfile;
-	public Main main;
-
-	public static int counter = 0;
-
-	@Rule
-	public TestRule timeout = new DisableOnDebug(new Timeout(15, TimeUnit.SECONDS));
-	
-	@Test
-	public void test() throws Throwable {
-		System.err.println("[" + counter++ + " = " + file + "]");
-		
-		try {
-			// Delete intermediate files from previous runs:
-			if (sfile.exists())
-				sfile.delete();
-			if (binfile.exists())
-				binfile.delete();
-
-			runReference();
-			
-			List<ClassDecl> astRoots = testParser();
-			if (astRoots != null) {
-			}
-		} catch (org.junit.ComparisonFailure cf) {
-			throw cf;
-		} catch (Throwable e) {
-			PrintStream err = new PrintStream(errfile);
-			err.println("Debug information for file: " + this.file);
-			err.println(this.main.debug.toString());
-			err.println("Test failed because an exception was thrown:");
-			err.println("    " + e.getLocalizedMessage());
-			err.println("Stack trace:");
-			e.printStackTrace(err);
-			System.err.println(FileUtil.read(errfile));
-			throw e;
-		}
-
-		// if we get here, then the test passed, so delete the errfile:
-		// (which has been accumulating debug output etc)
-		if (errfile.exists())
-			errfile.delete();
-	}
-
-	private void runReference() throws IOException, InterruptedException {
-        String slash = File.separator;
-        String colon = File.pathSeparator;
-        String javaExe = System.getProperty("java.home") + slash + "bin" + slash + Config.JAVA_EXE;
-        
-        ProcessBuilder pb = new ProcessBuilder(
-                javaExe, "-Dcd.meta_hidden.Version=" + referenceVersion(),
-                "-cp", "lib/frozenReferenceObf.jar" + colon + " lib/junit-4.12.jar" + colon + "lib/antlr-4.7.1-complete.jar",
-                "cd.FrozenReferenceMain", file.getAbsolutePath());
-	        
-        Process proc = pb.start();
-        proc.waitFor();
-        try (InputStream err = proc.getErrorStream()) {
-            if (err.available() > 0) {
-                byte b[] = new byte[err.available()];
-                err.read(b, 0, b.length);
-                System.err.println(new String(b));
-            }
-        }
-	}
-	
-	private static String referenceVersion() {
-        {
-            return "CD_HW_PARSER_SOL";
-        }
-	}
-
-	private String tryReadRefFile(File fileToFind) {
-		if (fileToFind.exists() && fileToFind.lastModified() >= file.lastModified()) {
-			try {
-				return FileUtil.read(fileToFind);
-			} catch (IOException e) {
-				throw new RuntimeException("ERROR: could not read file " + fileToFind.getPath());
-			}
-		}
-		throw new RuntimeException("ERROR: could not find file " + fileToFind.getPath());
-	}
-	
-	/** Run the parser and compare the output against the reference results */
-	private List<ClassDecl> testParser() throws Exception {
-		String parserRef = tryReadRefFile(parserreffile);
-		List<ClassDecl> astRoots = null;
-		String parserOut;
-
-		try {
-			astRoots = main.parse(new FileReader(this.file));
-
-			parserOut = AstDump.toString(astRoots);
-		} catch (ParseFailure pf) {
-			{
-				// Parse errors are ok too.
-				main.debug("");
-				main.debug("");
-				main.debug("%s", pf.toString());
-				parserOut = PARSE_FAILURE;
-			}
-		}
-
-		{
-			assertEquals("parser", parserRef, parserOut);
-		}
-		return astRoots;
-	}
-
-
-	private void assertEquals(String phase, String exp, String act_) {
-		String act = act_.replace("\r\n", "\n"); // for windows machines
-		if (!exp.equals(act)) {
-			warnAboutDiff(phase, exp, act);
-		}
-	}
-
-	private void warnAboutDiff(String phase, String exp, String act) {
-		try {
-			try (PrintStream err = new PrintStream(errfile)) {
-				err.println("Debug information for file: " + this.file);
-				err.println(this.main.debug.toString());
-				err.println(String.format(
-						"Phase %s failed because we expected to see:", phase));
-				err.println(exp);
-				err.println("But we actually saw:");
-				err.println(act);
-				err.println("The difference is:");
-				err.println(Diff.computeDiff(exp, act));
-			}
-		} catch (FileNotFoundException exc) {
-			System.err.println("Unable to write debug output to " + errfile
-					+ ":");
-			exc.printStackTrace();
-		}
-		Assert.assertEquals(
-				String.format("Phase %s for %s failed!", phase,
-						file.getPath()), exp, act);
-	}
-	
-}