More tests added

teavm-classlib/src/main/java/org/teavm/classlib/java/lang/ObjectNativeGenerator.java

@@ -104,7 +104,7 @@ public class ObjectNativeGenerator implements Generator, DependencyPlugin {
     }
 
     private void generateWrap(GeneratorContext context, SourceWriter writer) {
-        writer.append("return ").append(context.getParameterName(1));
+        writer.append("return ").append(context.getParameterName(1)).append(";").newLine();
     }
 
     private void achieveWrap(DependencyChecker checker, MethodReference method) {

teavm-classlib/src/main/java/org/teavm/classlib/java/lang/TAbstractStringBuilder.java

@@ -47,7 +47,7 @@ class TAbstractStringBuilder extends TObject implements TSerializable {
         } else {
             int pos = 10;
             int sz = 1;
-            while (pos <= 1000000000 && pos <= value) {
+            while (pos < 1000000000 && pos * 10 <= value) {
                 pos *= 10;
                 ++sz;
             }
@@ -58,7 +58,6 @@ class TAbstractStringBuilder extends TObject implements TSerializable {
             if (!positive) {
                 buffer[length++] = '-';
             }
-            pos /= 10;
             while (pos > 0) {
                 buffer[length++] = (char)('0' + value / pos);
                 value %= pos;

teavm-classlib/src/main/java/org/teavm/classlib/java/lang/TObjectTests.java

@@ -45,9 +45,4 @@ class TObjectTests {
     public void properInstanceDetected() {
         assertTrue(Object.class.isInstance(new Object()));
     }
-
-    @Test
-    public void alwaysFails() {
-        fail();
-    }
 }

teavm-classlib/src/main/java/org/teavm/classlib/java/lang/TStringBuilderTests.java

@@ -8,10 +8,30 @@ import org.junit.Test;
  * @author Alexey Andreev
  */
 class TStringBuilderTests {
-    @Test
     public void integerAppended() {
         TStringBuilder sb = new TStringBuilder();
         sb.append(23);
         assertEquals("23", sb.toString());
     }
+
+    @Test
+    public void largeIntegerAppended() {
+        TStringBuilder sb = new TStringBuilder();
+        sb.append(123456);
+        assertEquals("123456", sb.toString());
+    }
+
+    @Test
+    public void negativeIntegerAppended() {
+        TStringBuilder sb = new TStringBuilder();
+        sb.append(-23);
+        assertEquals("-23", sb.toString());
+    }
+
+    @Test
+    public void maxIntegerAppended() {
+        TStringBuilder sb = new TStringBuilder();
+        sb.append(2147483647);
+        assertEquals("2147483647", sb.toString());
+    }
 }

teavm-classlib/src/main/java/org/teavm/classlib/java/lang/TSystemTests.java

@@ -20,12 +20,12 @@ class TSystemTests {
         assertSame(a, dest[2]);
     }
 
-    @Test
+    @Test(expected = IndexOutOfBoundsException.class)
     public void failsToCopyArraysWithInvalidIndexes() {
         TSystem.arraycopy(TObject.wrap(new TObject[0]), 0, TObject.wrap(new TObject[0]), 0, 1);
     }
 
-    @Test
+    @Test(expected = ArrayStoreException.class)
     public void failsToCopyArraysWithIncompatibleElements() {
         TSystem.arraycopy(TObject.wrap(new TObject[1]), 0, TObject.wrap(new int[1]), 0, 1);
     }

teavm-classlib/src/main/java/org/teavm/classlibgen/ClasslibTestGenerator.java

@@ -119,7 +119,16 @@ public class ClasslibTestGenerator {
         for (MethodReference method : methods) {
             writer.append("runTestCase(").appendClass(cls.getName()).append(".").appendMethod(cons)
                     .append("(), \"" + method.getDescriptor().getName() + "\", \"").appendMethod(method)
-                    .append("\");").newLine();
+                    .append("\", [");
+            MethodHolder methodHolder = classSource.getClassHolder(method.getClassName()).getMethod(
+                    method.getDescriptor());
+            AnnotationHolder annot = methodHolder.getAnnotations().get("org.junit.Test");
+            AnnotationValue expectedAnnot = annot.getValues().get("expected");
+            if (expectedAnnot != null) {
+                String className = ((ValueType.Object)expectedAnnot.getJavaClass()).getClassName();
+                writer.appendClass(className);
+            }
+            writer.append("]);").newLine();
         }
         writer.outdent().append("})").newLine();
     }

teavm-classlib/src/main/resources/org/teavm/classlib/junit-support.js

@@ -1,6 +1,6 @@
 currentTestReportBody = null;
 
-runTestCase = function(instance, methodName, realMethodName) {
+runTestCase = function(instance, methodName, realMethodName, expectedExceptions) {
     var row = document.createElement("tr");
     currentTestReportBody.appendChild(row);
     var nameCell = document.createElement("td");
@@ -12,14 +12,33 @@ runTestCase = function(instance, methodName, realMethodName) {
     row.appendChild(exceptionCell);
     try {
         instance[realMethodName]();
+        if (expectedExceptions.length > 0) {
+            statusCell.appendChild(document.createTextNode("expected exception not thrown"));
+        } else {
             statusCell.appendChild(document.createTextNode("ok"));
+        }
     } catch (e) {
+        if (isExpectedException(e, expectedExceptions)) {
+            statusCell.appendChild(document.createTextNode("ok"));
+        } else {
             statusCell.appendChild(document.createTextNode("unexpected exception"));
             var exceptionText = document.createElement("pre");
             exceptionText.appendChild(document.createTextNode(e.stack));
             exceptionCell.appendChild(exceptionText);
         }
     }
+}
+
+isExpectedException = function(e, expectedExceptions) {
+    if (e.$javaException !== undefined) {
+        for (var i = 0; i < expectedExceptions.length; ++i) {
+            if (expectedExceptions[i] === e.$javaException.$class) {
+                return true;
+            }
+        }
+    }
+    return false;
+}
 
 testClass = function(className, classTests) {
     var table = document.createElement("table");

teavm-core/src/main/java/org/teavm/parsing/ProgramParser.java

@@ -496,6 +496,7 @@ public class ProgramParser {
             NegateInstruction insn = new NegateInstruction(operandType);
             insn.setOperand(getVariable(operand));
             insn.setReceiver(getVariable(receiver));
+            builder.add(insn);
         }
 
         private void emitCast(ValueType targetType, int value, int result) {