tools/vm-tests/src/dot/junit/opcodes/div_long/Test_div_long.java

/*
 * Copyright (C) 2008 The Android Open Source Project
 *
 * 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 dot.junit.opcodes.div_long;

import dot.junit.DxTestCase;
import dot.junit.DxUtil;
import dot.junit.opcodes.div_long.d.T_div_long_1;
import dot.junit.opcodes.div_long.d.T_div_long_2;


public class Test_div_long extends DxTestCase {
    /**
     * @title Arguments = 100000000000l, 40000000000l
     */
    public void testN1() {
        T_div_long_1 t = new T_div_long_1();
        assertEquals(2l, t.run(100000000000l, 40000000000l));
    }

    /**
     * @title Rounding
     */
    public void testN2() {
        T_div_long_1 t = new T_div_long_1();
        assertEquals(8l, t.run(98765432123456l, 12345678912345l));
    }

    /**
     * @title Dividend = 0
     */
    public void testN3() {
        T_div_long_1 t = new T_div_long_1();
        assertEquals(0l, t.run(0l, 98765432123456l));
    }

    /**
     * @title Dividend is negative
     */
    public void testN4() {
        T_div_long_1 t = new T_div_long_1();
        assertEquals(-8, t.run(-98765432123456l, 12345678912345l));
    }

    /**
     * @title Divisor is negative
     */
    public void testN5() {
        T_div_long_1 t = new T_div_long_1();
        assertEquals(-8, t.run(98765432123456l, -12345678912345l));
    }

    /**
     * @title Both Dividend and divisor are negative
     */
    public void testN6() {
        T_div_long_1 t = new T_div_long_1();
        assertEquals(80l, t.run(-98765432123456l, -1234567891234l));
    }
    
    /**
     * @title Types of arguments - long, double. Dalvik doens't distinguish 64-bits types internally,
     * so this division of long and double makes no sense but shall not crash the VM.  
     */
    public void testN7() {
        T_div_long_2 t = new T_div_long_2();
        try {
            t.run(1234l, 3.1415d);
        } catch (Throwable e) {
        }
    }

    /**
     * @title Arguments = Long.MIN_VALUE, -1
     */
    public void testB1() {
        T_div_long_1 t = new T_div_long_1();
        assertEquals(-9223372036854775808L, t.run(Long.MIN_VALUE, -1));
    }

    /**
     * @title Arguments = Long.MIN_VALUE, 1
     */
    public void testB2() {
        T_div_long_1 t = new T_div_long_1();
        assertEquals(-9223372036854775808L, t.run(Long.MIN_VALUE, 1));
    }

    /**
     * @title Arguments = Long.MAX_VALUE, 1
     */
    public void testB3() {
        T_div_long_1 t = new T_div_long_1();
        assertEquals(9223372036854775807L, t.run(Long.MAX_VALUE, 1));
    }

    /**
     * @title Arguments = Long.MIN_VALUE, Long.MAX_VALUE
     */
    public void testB4() {
        T_div_long_1 t = new T_div_long_1();
        assertEquals(-1, t.run(Long.MIN_VALUE, Long.MAX_VALUE));
    }

    /**
     * @title Arguments = 1, Long.MAX_VALUE
     */
    public void testB5() {
        T_div_long_1 t = new T_div_long_1();
        assertEquals(0, t.run(1, Long.MAX_VALUE));
    }

    /**
     * @title Arguments = 1, Long.MIN_VALUE
     */
    public void testB6() {
        T_div_long_1 t = new T_div_long_1();
        assertEquals(0, t.run(1, Long.MIN_VALUE));
    }

    /**
     * @title Divisor is 0
     */
    public void testE1() {
        T_div_long_1 t = new T_div_long_1();
        try {
            t.run(12345678912345l, 0);
            fail("expected ArithmeticException");
        } catch (ArithmeticException ae) {
            // expected
        }
    }

    

    /**
     * @constraint A24 
     * @title number of registers
     */
    public void testVFE1() {
        try {
            Class.forName("dot.junit.opcodes.div_long.d.T_div_long_6");
            fail("expected a verification exception");
        } catch (Throwable t) {
            DxUtil.checkVerifyException(t);
        }
    }

    /**
     * @constraint B1 
     * @title types of arguments - int / long
     */
    public void testVFE2() {
        try {
            Class.forName("dot.junit.opcodes.div_long.d.T_div_long_3");
            fail("expected a verification exception");
        } catch (Throwable t) {
            DxUtil.checkVerifyException(t);
        }
    }

    /**
     * @constraint B1 
     * @title types of arguments - float / long
     */
    public void testVFE3() {
        try {
            Class.forName("dot.junit.opcodes.div_long.d.T_div_long_4");
            fail("expected a verification exception");
        } catch (Throwable t) {
            DxUtil.checkVerifyException(t);
        }
    }

    /**
     * @constraint B1 
     * @title types of arguments - reference / long
     */
    public void testVFE4() {
        try {
            Class.forName("dot.junit.opcodes.div_long.d.T_div_long_5");
            fail("expected a verification exception");
        } catch (Throwable t) {
            DxUtil.checkVerifyException(t);
        }
    }

}