| /* |
| * Copyright 2010 Google Inc. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); you may not |
| * use this file except in compliance with the License. You may obtain a copy of |
| * the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT |
| * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the |
| * License for the specific language governing permissions and limitations under |
| * the License. |
| */ |
| package com.google.gwt.lang; |
| |
| import com.google.gwt.lang.BigLongLibBase.BigLong; |
| import com.google.gwt.lang.LongLib.LongEmul; |
| |
| import junit.framework.TestCase; |
| |
| import java.util.Random; |
| import java.util.Set; |
| import java.util.TreeSet; |
| |
| /** |
| * Tests for {@link LongLib}. |
| */ |
| public class LongLibTest extends TestCase { |
| |
| private static abstract class BinaryOp extends Op { |
| public BinaryOp(String name) { |
| super(name); |
| } |
| |
| public abstract long ref(long longVal0, long longVal1); |
| |
| public abstract LongEmul test(LongEmul longVal0, LongEmul longVal1); |
| } |
| |
| private static abstract class BooleanOp extends Op { |
| public BooleanOp(String name) { |
| super(name); |
| } |
| |
| public abstract boolean ref(long longVal0, long longVal1); |
| |
| public abstract boolean test(LongEmul longVal0, LongEmul longVal1); |
| } |
| |
| private static abstract class CompareOp extends Op { |
| public CompareOp(String name) { |
| super(name); |
| } |
| |
| public abstract int ref(long longVal0, long longVal1); |
| |
| public abstract int test(LongEmul longVal0, LongEmul longVal1); |
| } |
| |
| private static abstract class Op { |
| String name; |
| |
| public Op(String name) { |
| this.name = name; |
| } |
| |
| public String getName() { |
| return name; |
| } |
| } |
| |
| private static abstract class ShiftOp extends Op { |
| public ShiftOp(String name) { |
| super(name); |
| } |
| |
| public abstract long ref(long longVal, int shift); |
| |
| public abstract LongEmul test(LongEmul longVak, int shift); |
| } |
| |
| private static abstract class UnaryOp extends Op { |
| public UnaryOp(String name) { |
| super(name); |
| } |
| |
| public abstract long ref(long longVal); |
| |
| public abstract LongEmul test(LongEmul longVal); |
| } |
| |
| private static final int BASE_VALUES = 128; |
| |
| private static final BinaryOp OP_ADD = new BinaryOp("ADD") { |
| @Override |
| public long ref(long longVal0, long longVal1) { |
| return longVal0 + longVal1; |
| } |
| |
| @Override |
| public LongEmul test(LongEmul longVal0, LongEmul longVal1) { |
| return LongLib.add(longVal0, longVal1); |
| } |
| }; |
| |
| private static final BinaryOp OP_AND = new BinaryOp("AND") { |
| @Override |
| public long ref(long longVal0, long longVal1) { |
| return longVal0 & longVal1; |
| } |
| |
| @Override |
| public LongEmul test(LongEmul longVal0, LongEmul longVal1) { |
| return LongLib.and(longVal0, longVal1); |
| } |
| }; |
| |
| private static final CompareOp OP_COMPARE = new CompareOp("COMPARE") { |
| @Override |
| public int ref(long longVal0, long longVal1) { |
| if (longVal0 < longVal1) { |
| return -1; |
| } |
| if (longVal0 > longVal1) { |
| return 1; |
| } |
| return 0; |
| } |
| |
| @Override |
| public int test(LongEmul longVal0, LongEmul longVal1) { |
| return (int) Math.signum(LongLib.compare(longVal0, longVal1)); |
| } |
| }; |
| |
| private static final BinaryOp OP_DIV = new BinaryOp("DIV") { |
| @Override |
| public long ref(long longVal0, long longVal1) { |
| return longVal0 / longVal1; |
| } |
| |
| @Override |
| public LongEmul test(LongEmul longVal0, LongEmul longVal1) { |
| return LongLib.div(longVal0, longVal1); |
| } |
| }; |
| |
| private static final BooleanOp OP_EQ = new BooleanOp("EQ") { |
| @Override |
| public boolean ref(long longVal0, long longVal1) { |
| return longVal0 == longVal1; |
| } |
| |
| @Override |
| public boolean test(LongEmul longVal0, LongEmul longVal1) { |
| return LongLib.eq(longVal0, longVal1); |
| } |
| }; |
| |
| private static final BooleanOp OP_GT = new BooleanOp("GT") { |
| @Override |
| public boolean ref(long longVal0, long longVal1) { |
| return longVal0 > longVal1; |
| } |
| |
| @Override |
| public boolean test(LongEmul longVal0, LongEmul longVal1) { |
| return LongLib.gt(longVal0, longVal1); |
| } |
| }; |
| |
| private static final BooleanOp OP_GTE = new BooleanOp("GTE") { |
| @Override |
| public boolean ref(long longVal0, long longVal1) { |
| return longVal0 >= longVal1; |
| } |
| |
| @Override |
| public boolean test(LongEmul longVal0, LongEmul longVal1) { |
| return LongLib.gte(longVal0, longVal1); |
| } |
| }; |
| |
| private static final BooleanOp OP_LT = new BooleanOp("LT") { |
| @Override |
| public boolean ref(long longVal0, long longVal1) { |
| return longVal0 < longVal1; |
| } |
| |
| @Override |
| public boolean test(LongEmul longVal0, LongEmul longVal1) { |
| return LongLib.lt(longVal0, longVal1); |
| } |
| }; |
| |
| private static final BooleanOp OP_LTE = new BooleanOp("LTE") { |
| @Override |
| public boolean ref(long longVal0, long longVal1) { |
| return longVal0 <= longVal1; |
| } |
| |
| @Override |
| public boolean test(LongEmul longVal0, LongEmul longVal1) { |
| return LongLib.lte(longVal0, longVal1); |
| } |
| }; |
| |
| private static final BinaryOp OP_MOD = new BinaryOp("MOD") { |
| @Override |
| public long ref(long longVal0, long longVal1) { |
| return longVal0 % longVal1; |
| } |
| |
| @Override |
| public LongEmul test(LongEmul longVal0, LongEmul longVal1) { |
| return LongLib.mod(longVal0, longVal1); |
| } |
| }; |
| |
| private static final BinaryOp OP_MUL = new BinaryOp("MUL") { |
| @Override |
| public long ref(long longVal0, long longVal1) { |
| return longVal0 * longVal1; |
| } |
| |
| @Override |
| public LongEmul test(LongEmul longVal0, LongEmul longVal1) { |
| return LongLib.mul(longVal0, longVal1); |
| } |
| }; |
| |
| private static final UnaryOp OP_NEG = new UnaryOp("NEG") { |
| @Override |
| public long ref(long longVal) { |
| return -longVal; |
| } |
| |
| @Override |
| public LongEmul test(LongEmul longVal) { |
| return LongLib.neg(longVal); |
| } |
| }; |
| |
| private static final BooleanOp OP_NEQ = new BooleanOp("NEQ") { |
| @Override |
| public boolean ref(long longVal0, long longVal1) { |
| return longVal0 != longVal1; |
| } |
| |
| @Override |
| public boolean test(LongEmul longVal0, LongEmul longVal1) { |
| return LongLib.neq(longVal0, longVal1); |
| } |
| }; |
| |
| private static final UnaryOp OP_NOT = new UnaryOp("NOT") { |
| @Override |
| public long ref(long longVal) { |
| return ~longVal; |
| } |
| |
| @Override |
| public LongEmul test(LongEmul longVal) { |
| return LongLib.not(longVal); |
| } |
| }; |
| |
| private static final BinaryOp OP_OR = new BinaryOp("OR") { |
| @Override |
| public long ref(long longVal0, long longVal1) { |
| return longVal0 | longVal1; |
| } |
| |
| @Override |
| public LongEmul test(LongEmul longVal0, LongEmul longVal1) { |
| return LongLib.or(longVal0, longVal1); |
| } |
| }; |
| |
| private static final ShiftOp OP_SHL = new ShiftOp("SHL") { |
| @Override |
| public long ref(long longVal, int shift) { |
| return longVal << shift; |
| } |
| |
| @Override |
| public LongEmul test(LongEmul longVal, int shift) { |
| return LongLib.shl(longVal, shift); |
| } |
| }; |
| |
| private static final ShiftOp OP_SHR = new ShiftOp("SHR") { |
| @Override |
| public long ref(long longVal, int shift) { |
| return longVal >> shift; |
| } |
| |
| @Override |
| public LongEmul test(LongEmul longVal, int shift) { |
| return LongLib.shr(longVal, shift); |
| } |
| }; |
| |
| private static final ShiftOp OP_SHRU = new ShiftOp("SHRU") { |
| @Override |
| public long ref(long longVal, int shift) { |
| return longVal >>> shift; |
| } |
| |
| @Override |
| public LongEmul test(LongEmul longVal, int shift) { |
| return LongLib.shru(longVal, shift); |
| } |
| }; |
| |
| private static final BinaryOp OP_SUB = new BinaryOp("SUB") { |
| @Override |
| public long ref(long longVal0, long longVal1) { |
| return longVal0 - longVal1; |
| } |
| |
| @Override |
| public LongEmul test(LongEmul longVal0, LongEmul longVal1) { |
| return LongLib.sub(longVal0, longVal1); |
| } |
| }; |
| |
| private static final BinaryOp OP_XOR = new BinaryOp("XOR") { |
| @Override |
| public long ref(long longVal0, long longVal1) { |
| return longVal0 ^ longVal1; |
| } |
| |
| @Override |
| public LongEmul test(LongEmul longVal0, LongEmul longVal1) { |
| return LongLib.xor(longVal0, longVal1); |
| } |
| }; |
| |
| private static final Random rand = new Random(1); |
| |
| private static final int RANDOM_TESTS = 1000; |
| |
| private static long[] TEST_VALUES; |
| |
| static { |
| LongLib.RUN_IN_JVM = true; |
| } |
| |
| static { |
| Set<Long> testSet = new TreeSet<Long>(); |
| for (long i = 0; i < BASE_VALUES; i++) { |
| testSet.add(i); |
| testSet.add(-i); |
| |
| testSet.add(Long.MIN_VALUE + i); |
| testSet.add(Long.MAX_VALUE - i); |
| |
| testSet.add(i << BigLongLib.BITS / 2); |
| testSet.add(i << BigLongLib.BITS); |
| testSet.add(i << (3 * BigLongLib.BITS) / 2); |
| testSet.add(i << 2 * BigLongLib.BITS); |
| testSet.add(i << (5 * BigLongLib.BITS) / 2); |
| } |
| |
| for (int i = 0; i < 16; i++) { |
| testSet.add(0x1111111111111111L * i); |
| testSet.add(~(0x1111111111111111L * i)); |
| testSet.add(-(0x1111111111111111L * i)); |
| testSet.add(0x1010101010101010L * i); |
| testSet.add(~(0x1010101010101010L * i)); |
| testSet.add(-(0x1010101010101010L * i)); |
| testSet.add(0x0101010101010101L * i); |
| testSet.add(~(0x0101010101010101L * i)); |
| testSet.add(-(0x0101010101010101L * i)); |
| testSet.add(0x123456789ABCDEFFL * i); |
| testSet.add(~(0x123456789ABCDEFFL * i)); |
| testSet.add(-(0x123456789ABCDEFFL * i)); |
| } |
| |
| for (int i = 0; i < 64; i += 4) { |
| testSet.add(0x1L << i); |
| testSet.add(~(0x1L << i)); |
| testSet.add(0x123456789ABCDEFFL >> i); |
| testSet.add(-(0x123456789ABCDEFFL >> i)); |
| |
| // Powers of two and nearby numbers |
| testSet.add(0x1L << i); |
| for (int j = 1; j <= 16; j++) { |
| testSet.add((0x1L << i) + j); |
| testSet.add(-((0x1L << i) + j)); |
| testSet.add(~((0x1L << i) + j)); |
| testSet.add((0x1L << i) - j); |
| testSet.add(-((0x1L << i) - j)); |
| testSet.add(~((0x1L << i) - j)); |
| testSet.add((0x3L << i) + j); |
| testSet.add(-((0x3L << i) + j)); |
| testSet.add(~((0x3L << i) + j)); |
| testSet.add((0x3L << i) - j); |
| testSet.add(-((0x3L << i) - j)); |
| testSet.add(~((0x3L << i) - j)); |
| } |
| } |
| |
| for (int a = 0; a < 19; a++) { |
| testSet.add((long) Math.pow(10, a)); |
| } |
| |
| TEST_VALUES = new long[testSet.size()]; |
| int index = 0; |
| for (long val : testSet) { |
| TEST_VALUES[index++] = val; |
| } |
| |
| System.out.println("VALUES.length = " + index); |
| } |
| |
| public static void testAdd() { |
| doTestBinary(OP_ADD); |
| } |
| |
| public static void testAnd() { |
| doTestBinary(OP_AND); |
| } |
| |
| public static void testCompare() { |
| doTestCompare(OP_COMPARE); |
| } |
| |
| public static void testDiv() { |
| doTestBinary(OP_DIV); |
| } |
| |
| public static void testEq() { |
| doTestBoolean(OP_EQ); |
| } |
| |
| public static void testGetAsLongArray() { |
| long longVal = 0L; |
| long[] array = LongLib.getAsLongArray(longVal); |
| assertEquals(1, array.length); |
| assertEquals(0, array[0]); |
| |
| longVal = 10L; |
| array = LongLib.getAsLongArray(longVal); |
| assertEquals(1, array.length); |
| assertEquals(10, array[0]); |
| |
| longVal = -10L; |
| array = LongLib.getAsLongArray(longVal); |
| assertEquals(1, array.length); |
| assertEquals(-10, array[0]); |
| |
| longVal = 0x123456789abcdef0L; |
| array = LongLib.getAsLongArray(longVal); |
| assertEquals(0x12345, array[2]); |
| assertEquals(0x19e26a, array[1]); |
| assertEquals(0x3cdef0, array[0]); |
| |
| longVal = -0x123456789abcdef0L; |
| array = LongLib.getAsLongArray(longVal); |
| assertEquals(0xedcba, array[2]); |
| assertEquals(0x261d95, array[1]); |
| assertEquals(0x32110, array[0]); |
| } |
| |
| public static void testGt() { |
| doTestBoolean(OP_GT); |
| } |
| |
| public static void testGte() { |
| doTestBoolean(OP_GTE); |
| } |
| |
| public static void testLt() { |
| doTestBoolean(OP_LT); |
| } |
| |
| public static void testLte() { |
| doTestBoolean(OP_LTE); |
| } |
| |
| public static void testMod() { |
| doTestBinary(OP_MOD); |
| } |
| |
| public static void testMul() { |
| doTestBinary(OP_MUL); |
| } |
| |
| public static void testNeg() { |
| doTestUnary(OP_NEG); |
| } |
| |
| public static void testNeq() { |
| doTestBoolean(OP_NEQ); |
| } |
| |
| public static void testNot() { |
| doTestUnary(OP_NOT); |
| } |
| |
| public static void testNumberOfLeadingZeros() { |
| BigLong longVal0 = LongLib.asBigLong(fromLong(0xfedcba9876543210L)); |
| for (int i = 0; i <= 64; i++) { |
| assertEquals(i, BigLongLibBase.numberOfLeadingZeros(longVal0)); |
| longVal0 = BigLongLib.shru(longVal0, 1); |
| } |
| } |
| |
| public static void testOr() { |
| doTestBinary(OP_OR); |
| } |
| |
| public static void testRoundTrip() { |
| System.out.println("ROUND_TRIP"); |
| |
| for (int i = 0; i < TEST_VALUES.length + RANDOM_TESTS; i++) { |
| long longVal0 = (i < TEST_VALUES.length) ? TEST_VALUES[i] |
| : rand.nextLong(); |
| LongEmul longVal1 = fromLong(longVal0); |
| long l2 = toLong(longVal1); |
| if (longVal0 != l2) { |
| fail("longVal0 = " + longVal0 + ", l2 = " + l2); |
| } |
| if (!toHex(longVal0).equals(toHex(longVal1))) { |
| fail("toHex(longVal0) = " + toHex(longVal0) + ", toHex(longVal1) = " |
| + toHex(longVal1)); |
| } |
| if (!toHex(longVal0).equals(toHex(l2))) { |
| fail("toHex(longVal0) = " + toHex(longVal0) + ", toHex(l2) = " |
| + toHex(l2)); |
| } |
| if (!LongLib.toString(longVal1).equals(Long.toString(longVal0))) { |
| fail("toString(longVal0) = " + Long.toString(longVal0) |
| + ", toString(longVal1) = " + LongLib.toString(longVal1)); |
| } |
| } |
| |
| for (int i = 0; i < TEST_VALUES.length + RANDOM_TESTS; i++) { |
| double d0 = (i < TEST_VALUES.length) ? TEST_VALUES[i] |
| : (rand.nextDouble() - 0.5) * 3.0 * Long.MAX_VALUE; |
| long longVal0 = (long) d0; |
| LongEmul longVal1 = LongLib.fromDouble(d0); |
| long l2 = toLong(longVal1); |
| if (longVal0 != l2) { |
| fail("d0 = " + d0 + ", longVal0 = " + longVal0 + ", l2 = " + l2); |
| } |
| } |
| |
| for (int i = 0; i < TEST_VALUES.length + RANDOM_TESTS; i++) { |
| long longVal0 = i < TEST_VALUES.length ? TEST_VALUES[i] : rand.nextLong(); |
| // Find a round-trip capable value |
| double d0 = longVal0; |
| longVal0 = (long) d0; |
| |
| LongEmul longVal1 = fromLong(longVal0); |
| double d1 = LongLib.toDouble(longVal1); |
| LongEmul l2 = LongLib.fromDouble(d1); |
| long l3 = toLong(l2); |
| |
| if (longVal0 != l3) { |
| fail("longVal0 = " + longVal0 + ", d1 = " + d1 + ", l3 = " + l3); |
| } |
| } |
| |
| for (int i = 0; i < TEST_VALUES.length + RANDOM_TESTS; i++) { |
| int i0 = i < TEST_VALUES.length ? (int) TEST_VALUES[i] : rand.nextInt(); |
| long longVal0 = i0; |
| LongEmul longVal1 = LongLib.fromInt(i0); |
| long l2 = toLong(longVal1); |
| if (longVal0 != l2) { |
| fail("i0 = " + i0 + ", longVal0 = " + longVal0 + ", l2 = " + l2); |
| } |
| } |
| |
| if (toLong(LongLib.fromDouble(Double.NaN)) != 0) { |
| fail("fromDouble(Nan) != 0"); |
| } |
| if (toLong(LongLib.fromDouble(Double.NEGATIVE_INFINITY)) != Long.MIN_VALUE) { |
| fail("fromDouble(-Inf) != MIN_VALUE"); |
| } |
| if (toLong(LongLib.fromDouble(Double.POSITIVE_INFINITY)) != Long.MAX_VALUE) { |
| fail("fromDouble(+Inf) != MAX_VALUE"); |
| } |
| if (LongLib.toDouble(fromLong(Long.MIN_VALUE)) != -9223372036854775808.0) { |
| fail("toDouble(Long.MIN_VALUE) != -9223372036854775808.0"); |
| } |
| if (LongLib.toDouble(fromLong(Long.MAX_VALUE)) != 9223372036854775807.0) { |
| fail("toDouble(Long.MAX_VALUE) != 9223372036854775807.0"); |
| } |
| } |
| |
| public static void testShl() { |
| doTestShift(OP_SHL); |
| } |
| |
| public static void testShr() { |
| doTestShift(OP_SHR); |
| } |
| |
| public static void testShru() { |
| doTestShift(OP_SHRU); |
| } |
| |
| public static void testSub() { |
| doTestBinary(OP_SUB); |
| } |
| |
| public static void testXor() { |
| doTestBinary(OP_XOR); |
| } |
| |
| private static LongEmul copy(LongEmul longVal) { |
| return LongLib.copy(longVal); |
| } |
| |
| private static void doTestBinary(BinaryOp op) { |
| System.out.println(op.getName()); |
| for (int i = 0; i < TEST_VALUES.length; i++) { |
| long randomLong = rand.nextLong(); |
| doTestBinary(op, TEST_VALUES[i], randomLong); |
| doTestBinary(op, randomLong, TEST_VALUES[i]); |
| for (int j = 0; j < TEST_VALUES.length; j++) { |
| doTestBinary(op, TEST_VALUES[i], TEST_VALUES[j]); |
| } |
| } |
| for (int i = 0; i < RANDOM_TESTS; i++) { |
| long longVal0 = rand.nextLong(); |
| long longVal1 = rand.nextLong(); |
| if (rand.nextInt(20) == 0) { |
| if (rand.nextInt(2) == 0) { |
| longVal1 = longVal0; |
| } else { |
| longVal1 = -longVal0; |
| } |
| } |
| doTestBinary(op, longVal0, longVal1); |
| } |
| } |
| |
| private static void doTestBinary(BinaryOp op, long longVal0, long longVal1) { |
| boolean refException = false; |
| long ref = -1; |
| try { |
| ref = op.ref(longVal0, longVal1); |
| } catch (ArithmeticException e) { |
| refException = true; |
| } |
| boolean testException = false; |
| long result = -2; |
| try { |
| LongEmul llongVal0 = fromLong(longVal0); |
| LongEmul llongVal1 = fromLong(longVal1); |
| LongEmul save_llongVal0 = copy(llongVal0); |
| LongEmul save_llongVal1 = copy(llongVal1); |
| |
| result = toLong(op.test(llongVal0, llongVal1)); |
| if (!LongLib.eq(llongVal0, save_llongVal0)) { |
| System.out.println("Test altered first argument"); |
| } |
| if (!LongLib.eq(llongVal1, save_llongVal1)) { |
| System.out.println("Test altered second argument"); |
| } |
| } catch (ArithmeticException e) { |
| testException = true; |
| } |
| if (testException && refException) { |
| return; |
| } |
| if (testException != refException) { |
| fail(op.getName() + ": longVal0 = " + longVal0 + ", longVal1 = " |
| + longVal1 + ", testException = " + testException |
| + ", refException = " + refException); |
| return; |
| } |
| if (ref != result) { |
| fail(op.getName() + ": longVal0 = " + longVal0 + ", longVal1 = " |
| + longVal1); |
| toLong(op.test(fromLong(longVal0), fromLong(longVal1))); |
| } |
| } |
| |
| private static void doTestBoolean(BooleanOp op) { |
| System.out.println(op.getName()); |
| for (int i = 0; i < TEST_VALUES.length; i++) { |
| long randomLong = rand.nextLong(); |
| doTestBoolean(op, TEST_VALUES[i], randomLong); |
| doTestBoolean(op, randomLong, TEST_VALUES[i]); |
| for (int j = 0; j < TEST_VALUES.length; j++) { |
| doTestBoolean(op, TEST_VALUES[i], TEST_VALUES[j]); |
| } |
| } |
| for (int i = 0; i < RANDOM_TESTS; i++) { |
| long longVal0 = rand.nextLong(); |
| long longVal1 = rand.nextLong(); |
| if (rand.nextInt(20) == 0) { |
| if (rand.nextInt(2) == 0) { |
| longVal1 = longVal0; |
| } else { |
| longVal1 = -longVal0; |
| } |
| } |
| doTestBoolean(op, longVal0, longVal1); |
| } |
| } |
| |
| private static void doTestBoolean(BooleanOp op, long longVal0, long longVal1) { |
| boolean ref = op.ref(longVal0, longVal1); |
| boolean result = op.test(fromLong(longVal0), fromLong(longVal1)); |
| if (ref != result) { |
| fail(op.getName() + ": longVal0 = " + longVal0 + ", longVal1 = " |
| + longVal1); |
| } |
| } |
| |
| private static void doTestCompare(CompareOp op) { |
| System.out.println(op.getName()); |
| for (int i = 0; i < TEST_VALUES.length; i++) { |
| long randomLong = rand.nextLong(); |
| doTestCompare(op, TEST_VALUES[i], randomLong); |
| doTestCompare(op, randomLong, TEST_VALUES[i]); |
| for (int j = 0; j < TEST_VALUES.length; j++) { |
| doTestCompare(op, TEST_VALUES[i], TEST_VALUES[j]); |
| } |
| } |
| for (int i = 0; i < RANDOM_TESTS; i++) { |
| long longVal0 = rand.nextLong(); |
| long longVal1 = rand.nextLong(); |
| if (rand.nextInt(20) == 0) { |
| if (rand.nextInt(2) == 0) { |
| longVal1 = longVal0; |
| } else { |
| longVal1 = -longVal0; |
| } |
| } |
| doTestCompare(op, longVal0, longVal1); |
| } |
| } |
| |
| private static void doTestCompare(CompareOp op, long longVal0, long longVal1) { |
| int ref = op.ref(longVal0, longVal1); |
| int result = op.test(fromLong(longVal0), fromLong(longVal1)); |
| if (ref < 0) { |
| ref = -1; |
| } else if (ref > 0) { |
| ref = 1; |
| } |
| if (result < 0) { |
| result = -1; |
| } else if (result > 0) { |
| result = 1; |
| } |
| |
| if (ref != result) { |
| fail(op.getName() + ": longVal0 = " + longVal0 + ", longVal1 = " |
| + longVal1 + ", ref = " + ref + ", result = " + result); |
| } |
| } |
| |
| private static void doTestShift(ShiftOp op) { |
| System.out.println(op.getName()); |
| for (int i = 0; i < TEST_VALUES.length; i++) { |
| for (int shift = -64; shift <= 64; shift++) { |
| doTestShift(op, TEST_VALUES[i], shift); |
| } |
| } |
| for (int i = 0; i < RANDOM_TESTS; i++) { |
| long randomLong = rand.nextLong(); |
| for (int shift = -64; shift <= 64; shift++) { |
| doTestShift(op, randomLong, shift); |
| } |
| } |
| } |
| |
| private static void doTestShift(ShiftOp op, long longVal, int shift) { |
| long ref = op.ref(longVal, shift); |
| long result = toLong(op.test(fromLong(longVal), shift)); |
| if (ref != result) { |
| fail(op.getName() + ": longVal = " + longVal + ", shift = " + shift); |
| } |
| } |
| |
| private static void doTestUnary(UnaryOp op) { |
| System.out.println(op.getName()); |
| for (int i = 0; i < TEST_VALUES.length; i++) { |
| doTestUnary(op, TEST_VALUES[i]); |
| } |
| for (int i = 0; i < RANDOM_TESTS; i++) { |
| long randomLong = rand.nextLong(); |
| doTestUnary(op, randomLong); |
| } |
| } |
| |
| private static void doTestUnary(UnaryOp op, long longVal) { |
| long ref = op.ref(longVal); |
| long result = toLong(op.test(fromLong(longVal))); |
| if (ref != result) { |
| fail(op.getName() + ": longVal = " + longVal); |
| } |
| } |
| |
| private static LongEmul fromLong(long longVal) { |
| return LongLibTestBase.longFromBits((int) (longVal >> 32), (int) longVal); |
| } |
| |
| private static int getBit(LongEmul longVal, int bit) { |
| return LongLib.toInt(LongLib.shr(longVal, bit)) & 0x1; |
| } |
| |
| private static String toHex(long longVal) { |
| String result = Long.toHexString(longVal); |
| while (result.length() < 16) { |
| result = "0" + result; |
| } |
| return result; |
| } |
| |
| private static String toHex(LongEmul longVal) { |
| StringBuilder sb = new StringBuilder(); |
| for (int i = 60; i >= 0; i -= 4) { |
| int b0 = getBit(longVal, i); |
| int b1 = getBit(longVal, i + 1); |
| int b2 = getBit(longVal, i + 2); |
| int b3 = getBit(longVal, i + 3); |
| int b = (b3 << 3) + (b2 << 2) + (b1 << 1) + b0; |
| if (b < 10) { |
| sb.append(b); |
| } else { |
| sb.append((char) ('a' + b - 10)); |
| } |
| } |
| return sb.toString(); |
| } |
| |
| private static long toLong(LongEmul longVal) { |
| return Long.parseLong(LongLib.toString(longVal)); |
| } |
| |
| public LongLibTest() { |
| } |
| } |