DataTest.java

package elw.dp.mips.asm;

import junit.framework.TestCase;

public class DataTest extends TestCase {
    public void testIsValidInt() {
        assertTrue(Data.isNum("0", 32));
        assertTrue(Data.isNum("0x0", 32));
        assertTrue(Data.isNum("0b", 32));
        assertTrue(Data.isNum("0h", 32));
        assertTrue(Data.isNum("0o", 32));
        assertTrue(Data.isNum("9", 32));
        assertTrue(Data.isNum("9h", 32));
        assertTrue(Data.isNum("0x9", 32));
        assertTrue(Data.isNum("7o", 32));
        assertTrue(Data.isNum("1o", 32));
        assertTrue(Data.isNum("1b", 32));

        assertTrue(Data.isNum("-0", 32));
        assertTrue(Data.isNum("-0x0", 32));
        assertTrue(Data.isNum("-0b", 32));
        assertTrue(Data.isNum("-0h", 32));
        assertTrue(Data.isNum("-0o", 32));
        assertTrue(Data.isNum("-9", 32));
        assertTrue(Data.isNum("-9h", 32));
        assertTrue(Data.isNum("-0x9", 32));
        assertTrue(Data.isNum("-7o", 32));
        assertTrue(Data.isNum("-1o", 32));
        assertTrue(Data.isNum("-1b", 32));

        assertFalse(Data.isNum("-F", 32));
        assertFalse(Data.isNum("-0xG", 32));
        assertFalse(Data.isNum("-2b", 32));
        assertFalse(Data.isNum("-Gh", 32));
        assertFalse(Data.isNum("-8o", 32));
        assertFalse(Data.isNum("-9-", 32));
        assertFalse(Data.isNum("9-h", 32));
        assertFalse(Data.isNum("-00x9", 32));
        assertFalse(Data.isNum("-8o", 32));
        assertFalse(Data.isNum("-8o", 32));
        assertFalse(Data.isNum("-2b", 32));

        assertFalse(Data.isNum(null, 32));
        assertFalse(Data.isNum("-", 32));
        assertFalse(Data.isNum("", 32));
        assertFalse(Data.isNum("--", 32));
        assertFalse(Data.isNum("0x", 32));
        assertFalse(Data.isNum("h", 32));
        assertFalse(Data.isNum("b", 32));
        assertFalse(Data.isNum("o", 32));
    }

    public void testParseInt() {
        assertEquals(0, Data.parse("-0"));
        assertEquals(0, Data.parse("-0x0"));
        assertEquals(0, Data.parse("-0b"));
        assertEquals(0, Data.parse("-0h"));
        assertEquals(0, Data.parse("-0o"));
        assertEquals(-9, Data.parse("-9"));
        assertEquals(-9, Data.parse("-9h"));
        assertEquals(-9, Data.parse("-0x9"));
        assertEquals(-7, Data.parse("-7o"));
        assertEquals(-1, Data.parse("-1o"));
        assertEquals(-1, Data.parse("-1b"));

        assertEquals(-10, Data.parse("-10"));
        assertEquals(-16, Data.parse("-0x10"));
        assertEquals(-2, Data.parse("-10b"));
        assertEquals(-16, Data.parse("-10h"));
        assertEquals(-8, Data.parse("-10o"));
        assertEquals(-19, Data.parse("-19"));
        assertEquals(-25, Data.parse("-19h"));
        assertEquals(-25, Data.parse("-0x19"));
        assertEquals(-15, Data.parse("-17o"));
        assertEquals(-9, Data.parse("-11o"));
        assertEquals(-3, Data.parse("-11b"));
    }

    public void testMsb() {
        assertEquals(0, Data.width(0));
        assertEquals(1, Data.width(1));
        assertEquals(2, Data.width(2));
        assertEquals(2, Data.width(3));
        assertEquals(3, Data.width(4));
        assertEquals(4, Data.width(12));
        assertEquals(5, Data.width(25));
        assertEquals(10, Data.width(1023));
        assertEquals(11, Data.width(1025));
        assertEquals(11, Data.width(1025));
        assertEquals(26, Data.width((1 << 25) + (1 << 23) + (1 << 12) + (1 << 3 + 1)));
    }
}