Fixes class methods errors. Adds string tests

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

@@ -12,14 +12,14 @@ import org.teavm.model.MethodReference;
 public class ClassNativeGenerator implements Generator {
     @Override
     public void generate(GeneratorContext context, SourceWriter writer, MethodReference methodRef) {
-        switch (methodRef.getClassName()) {
+        switch (methodRef.getName()) {
             case "isInstance":
                 generateIsInstance(context, writer);
                 break;
             case "isAssignable":
                 generateIsAssignableFrom(context, writer);
                 break;
-            case "getComponentType":
+            case "getComponentType0":
                 generateGetComponentType(context, writer);
                 break;
         }

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

@@ -33,6 +33,11 @@ class TClassTests {
         assertEquals(Object.class, Object[].class.getComponentType());
     }
 
+    @Test
+    public void arrayOfArraysComponentTypeDetected() {
+        assertEquals(Object[].class, Object[][].class.getComponentType());
+    }
+
     @Test
     public void nonArrayComponentTypeIsNull() {
         assertNull(Object.class.getComponentType());

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

@@ -0,0 +1,24 @@
+package org.teavm.classlib.java.lang;
+
+import static org.junit.Assert.assertEquals;
+import org.junit.Test;
+
+/**
+ *
+ * @author Alexey Andreev <konsoletyper@gmail.com>
+ */
+class TStringTests {
+    @Test
+    public void charsExtracted() {
+        String str = "123";
+        assertEquals('1', str.charAt(0));
+        assertEquals('2', str.charAt(1));
+        assertEquals('3', str.charAt(2));
+    }
+
+    @Test
+    public void lengthComputed() {
+        String str = "123";
+        assertEquals(3, str.length());
+    }
+}

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

@@ -29,4 +29,14 @@ class TSystemTests {
     public void failsToCopyArraysWithIncompatibleElements() {
         TSystem.arraycopy(TObject.wrap(new TObject[1]), 0, TObject.wrap(new int[1]), 0, 1);
     }
+
+    @Test(expected = NullPointerException.class)
+    public void failsToCopyFromNullSource() {
+        TSystem.arraycopy(null, 0, TObject.wrap(new int[1]), 0, 1);
+    }
+
+    @Test(expected = NullPointerException.class)
+    public void failsToCopyToNullTarget() {
+        TSystem.arraycopy(TObject.wrap(new TObject[1]), 0, null, 0, 1);
+    }
 }

teavm-classlib/src/main/java/org/teavm/classlib/org/junit/Assert.java

@@ -34,6 +34,18 @@ public class Assert {
         }
     }
 
+    public static void assertEquals(long expected, long actual) {
+        if (expected != actual) {
+            fail();
+        }
+    }
+
+    public static void assertNotEquals(long expected, long actual) {
+        if (expected == actual) {
+            fail();
+        }
+    }
+
     public static void assertNotNull(Object object) {
         if (object == null) {
             fail();

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

@@ -32,7 +32,7 @@ public class ClasslibTestGenerator {
     private static List<MethodReference> testMethods = new ArrayList<>();
     private static Map<String, List<MethodReference>> groupedMethods = new HashMap<>();
     private static String[] testClasses = { "java.lang.ObjectTests", "java.lang.SystemTests",
-            "java.lang.StringBuilderTests", "java.lang.ClassTests" };
+            "java.lang.StringBuilderTests", "java.lang.ClassTests", "java.lang.StringTests" };
 
     public static void main(String[] args) throws IOException {
         out = System.out;

teavm-core/src/main/java/org/teavm/dependency/DependencyChecker.java

@@ -170,7 +170,7 @@ public class DependencyChecker {
                 if (method != null) {
                     return methodCache.map(new MethodReference(cls.getName(), methodRef.getDescriptor()));
                 }
-                cls = classSource.getClassHolder(cls.getParent());
+                cls = cls.getParent() != null ? classSource.getClassHolder(cls.getParent()) : null;
             }
             throw new RuntimeException("Method not found: " + methodRef);
         }

teavm-core/src/main/resources/org/teavm/javascript/runtime.js

@@ -218,17 +218,17 @@ Long = function(lo, hi) {
     this.lo = lo | 0;
     this.hi = hi | 0;
 }
-Long.ZERO = new Long(0, 0);
-Long.fromInt = function(val) {
+Long_ZERO = new Long(0, 0);
+Long_fromInt = function(val) {
     return new Long(val, 0);
 }
-Long.fromNumber = function(val) {
+Long_fromNumber = function(val) {
     return new Long(val | 0, (val / 0x100000000) | 0);
 }
-Long.toNumber = function(val) {
+Long_toNumber = function(val) {
     return val.lo + 0x100000000 * val.hi;
 }
-Long.add = function(a, b) {
+Long_add = function(a, b) {
     var a_lolo = a.lo & 0xFFFF;
     var a_lohi = a.lo >>> 16;
     var a_hilo = a.hi & 0xFFFF;
@@ -245,7 +245,7 @@ Long.add = function(a, b) {
     return new Long((lolo & 0xFFFF) | ((lohi & 0xFFFF) << 16),
             (hilo & 0xFFFF) | ((hihi & 0xFFFF) << 16));
 }
-Long.inc = function(a) {
+Long_inc = function(a) {
     var lo = (a.lo + 1) | 0;
     var hi = a.hi;
     if (lo === 0) {
@@ -253,7 +253,7 @@ Long.inc = function(a) {
     }
     return new Long(lo, hi);
 }
-Long.dec = function(a) {
+Long_dec = function(a) {
     var lo = (a.lo - 1) | 0;
     var hi = a.hi;
     if (lo === -1) {
@@ -261,10 +261,10 @@ Long.dec = function(a) {
     }
     return new Long(lo, hi);
 }
-Long.neg = function(a) {
+Long_neg = function(a) {
     return Long.inc(new Long(a.lo ^ 0xFFFFFFFF, a.hi ^ 0xFFFFFFFF));
 }
-Long.sub = function(a, b) {
+Long_sub = function(a, b) {
     var a_lolo = a.lo & 0xFFFF;
     var a_lohi = a.lo >>> 16;
     var a_hilo = a.hi & 0xFFFF;
@@ -281,17 +281,17 @@ Long.sub = function(a, b) {
     return new Long((lolo & 0xFFFF) | ((lohi & 0xFFFF) << 16),
             (hilo & 0xFFFF) | ((hihi & 0xFFFF) << 16));
 }
-Long.compare = function(a, b) {
+Long_compare = function(a, b) {
     var r = a.hi - a.hi;
     if (r != 0) {
         return r;
     }
     return a.lo - b.lo;
 }
-Long.isNegative = function(a) {
+Long_isNegative = function(a) {
     return a.hi < 0;
 }
-Long.mul = function(a, b) {
+Long_mul = function(a, b) {
     var a_lolo = a.lo & 0xFFFF;
     var a_lohi = a.lo >>> 16;
     var a_hilo = a.hi & 0xFFFF;
@@ -309,38 +309,38 @@ Long.mul = function(a, b) {
     return new Long((lolo & 0xFFFF) | ((lohi & 0xFFFF) << 16),
             (hilo & 0xFFFF) | ((hihi & 0xFFFF) << 16));
 }
-Long.div = function(a, b) {
+Long_div = function(a, b) {
     var result = (a.hi * 0x100000000 + a.lo) / (b.hi * 0x100000000 + b.lo);
     return new Long(result | 0, (result / 0x100000000) | 0);
 }
-Long.rem = function(a, b) {
+Long_rem = function(a, b) {
     var result = (a.hi * 0x100000000 + a.lo) % (b.hi * 0x100000000 + b.lo);
     return new Long(result | 0, (result / 0x100000000) | 0);
 }
-Long.and = function(a, b) {
+Long_and = function(a, b) {
     return new Long(a.lo & b.lo, a.hi & b.hi);
 }
-Long.or = function(a, b) {
+Long_or = function(a, b) {
     return new Long(a.lo | b.lo, a.hi | b.hi);
 }
-Long.xor = function(a, b) {
+Long_xor = function(a, b) {
     return new Long(a.lo ^ b.lo, a.hi ^ b.hi);
 }
-Long.shl = function(a, b) {
+Long_shl = function(a, b) {
     if (b < 32) {
         return new Long(a.lo << b, (a.lo >>> (32 - b)) | (a.hi << b));
     } else {
         return new Long(0, a.lo << (b - 32));
     }
 }
-Long.shr = function(a, b) {
+Long_shr = function(a, b) {
     if (b < 32) {
         return new Long((a.lo >>> b) | (a.hi << (32 - b)), a.hi >> b);
     } else {
         return new Long((a.hi >> (b - 32)), -1);
     }
 }
-Long.shru = function(a, b) {
+Long_shru = function(a, b) {
     if (b < 32) {
         return new Long((a.lo >>> b) | (a.hi << (32 - b)), a.hi >>> b);
     } else {