Lightweight test262 runner

.gitmodules

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+[submodule "test262"]
+	path = test262
+	url = https://github.com/tc39/test262.git

test262

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+Subproject commit 12cc01484eb4253894d7e9a3478445382e80b262

testsrc/org/mozilla/javascript/tests/Test262SuiteTest.java

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+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+package org.mozilla.javascript.tests;
+
+import org.junit.Before;
+import org.junit.BeforeClass;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.junit.runners.Parameterized;
+import org.junit.runners.Parameterized.Parameters;
+import org.mozilla.javascript.Context;
+import org.mozilla.javascript.JavaScriptException;
+import org.mozilla.javascript.Scriptable;
+import org.mozilla.javascript.tools.shell.Global;
+
+import java.io.*;
+import java.util.*;
+
+import static org.junit.Assert.assertNotNull;
+import static org.junit.Assert.fail;
+
+@RunWith(Parameterized.class)
+public class Test262SuiteTest {
+
+    private final File jsFile;
+    private final int optLevel;
+    private final boolean isStrict;
+
+    static final int[] OPT_LEVELS = { -1, 0, 9 };
+
+    @BeforeClass
+    public static void setUpClass() throws Exception {
+        System.setProperty("user.language", "US");
+        System.setProperty("user.country", "en");
+    }
+
+    public Test262SuiteTest(File jsFile, int optLevel, boolean isStrict) {
+        this.jsFile = jsFile;
+        this.optLevel = optLevel;
+        this.isStrict = isStrict;
+    }
+
+    private Object executeRhinoScript(File jsFile, int optLevel, boolean isStrict) {
+        Reader jsFileReader = null;
+        Context cx = Context.enter();
+
+        try {
+            jsFileReader = new FileReader(jsFile);
+
+            cx.setOptimizationLevel(optLevel);
+            cx.setLanguageVersion(Context.VERSION_ES6);
+
+            Global global = new Global(cx);
+
+            cx.evaluateReader(global, new FileReader("test262/harness/sta.js"), "test262/harness/sta.js", 1, null);
+            cx.evaluateReader(global, new FileReader("test262/harness/assert.js"), "test262/harness/assert.js", 1, null);
+            cx.evaluateReader(global, new FileReader("test262/harness/propertyHelper.js"), "test262/harness/propertyHelper.js", 1, null);
+
+            Scriptable scope = cx.newObject(global);
+            scope.setPrototype(global);
+            scope.setParentScope(null);
+
+            return cx.evaluateReader(scope, jsFileReader, jsFile.getPath().replaceAll("\\\\", "/"), 1, null);
+        } catch (JavaScriptException ex) {
+            fail(String.format("%s%n%s", ex.getMessage(), ex.getScriptStackTrace()));
+            return null;
+        } catch (Exception e) {
+            throw new RuntimeException(e);
+        } finally {
+            Context.exit();
+            try {
+                if (null != jsFileReader) jsFileReader.close();
+            } catch (IOException e) {
+            }
+        }
+    }
+
+    public static File[] getTestFiles() throws IOException {
+//        File testDir = getTestDir();
+//        String[] tests = TestUtils.loadTestsFromResource("/" + getTestFilename(optLevel), null);
+//        Arrays.sort(tests);
+//        File[] files = new File[tests.length];
+//        for (int i=0; i < files.length; i++) {
+//            files[i] = new File(testDir, tests[i]);
+//        }
+//        return files;
+        return new File[]{new File("test262/test/built-ins/Set/name.js")};
+    }
+
+    public static String loadFile(File f) throws IOException {
+        int length = (int) f.length(); // don't worry about very long files
+        char[] buf = new char[length];
+        new FileReader(f).read(buf, 0, length);
+        return new String(buf);
+    }
+
+    @Parameters(name = "{index}, js={0}, opt={1}, strict={2}")
+    public static Collection<Object[]> test262SuiteValues() throws IOException {
+        List<Object[]> result = new ArrayList<Object[]>();
+        File[] tests = getTestFiles();
+        for (File jsTest : tests) {
+            for (int optLevel : OPT_LEVELS) {
+                result.add(new Object[]{jsTest, optLevel, false});
+                result.add(new Object[]{jsTest, optLevel, true});
+            }
+        }
+        return result;
+    }
+
+    @Test
+    public void test262() throws Exception {
+        assertNotNull(executeRhinoScript(jsFile, optLevel, isStrict));
+    }
+}