@Test
public void testReadConfig() throws FileNotFoundException {
printlnMethodName();
final Map<Integer, IJVMCommand> expected = new HashMap<Integer, IJVMCommand>();
expected.put(0x00, new IJVMCommand("NOP"));
expected.put(0x10, new IJVMCommand("BIPUSH", IJVMCommandArgument.BYTE));
expected.put(0x13, new IJVMCommand("LDC_W", IJVMCommandArgument.INDEX));
expected.put(0x15, new IJVMCommand("ILOAD", IJVMCommandArgument.VARNUM));
expected.put(0x36, new IJVMCommand("ISTORE", IJVMCommandArgument.VARNUM));
expected.put(0x57, new IJVMCommand("POP"));
expected.put(0x59, new IJVMCommand("DUP"));
expected.put(0x5F, new IJVMCommand("SWAP"));
expected.put(0x60, new IJVMCommand("IADD"));
expected.put(0x64, new IJVMCommand("ISUB"));
expected.put(0x7E, new IJVMCommand("IAND"));
expected.put(0x80, new IJVMCommand("IOR"));
expected.put(
0x84, new IJVMCommand("IINC", IJVMCommandArgument.VARNUM, IJVMCommandArgument.CONST));
expected.put(0x99, new IJVMCommand("IFEQ", IJVMCommandArgument.LABEL));
expected.put(0x9B, new IJVMCommand("IFLT", IJVMCommandArgument.LABEL));
expected.put(0x9F, new IJVMCommand("IF_ICMPEQ", IJVMCommandArgument.LABEL));
expected.put(0xA7, new IJVMCommand("GOTO", IJVMCommandArgument.LABEL));
expected.put(0xAC, new IJVMCommand("IRETURN"));
expected.put(0xB6, new IJVMCommand("INVOKEVIRTUAL", IJVMCommandArgument.OFFSET));
expected.put(0xC4, new IJVMCommand("WIDE"));
expected.put(0xF0, new IJVMCommand("SRA1"));
expected.put(0xF1, new IJVMCommand("SLL8"));
expected.put(0xFC, new IJVMCommand("IN"));
expected.put(0xFD, new IJVMCommand("OUT"));
expected.put(0xFE, new IJVMCommand("ERR"));
expected.put(0xFF, new IJVMCommand("HALT"));
assertThat(READER.readConfig(getClass().getClassLoader().getResourceAsStream("ijvm.conf")))
.isEqualTo(expected);
}
@Test
public void testReadConfig_SingleLine() {
printlnMethodName();
final Map<Integer, IJVMCommand> expected = new HashMap<Integer, IJVMCommand>();
expected.put(16, new IJVMCommand("BIPUSH", IJVMCommandArgument.BYTE));
assertThat(
READER.readConfig(
new ByteArrayInputStream("0x10 BIPUSH byte // Push byte onto stack".getBytes())))
.isEqualTo(expected);
assertThat(
READER.readConfig(
new ByteArrayInputStream("0x10 BIPUSH byte// Push byte onto stack".getBytes())))
.isEqualTo(expected);
assertThat(READER.readConfig(new ByteArrayInputStream("0x10 BIPUSH byte".getBytes())))
.isEqualTo(expected);
}
@Test
public void testReadConfig_Empty_OnlyComments() {
printlnMethodName();
assertThat(
READER.readConfig(
new ByteArrayInputStream(" // nothing\n\n//also empty here".getBytes())))
.isEmpty();
}
@Test
public void testReadConfig_Empty_LineDoesntMatchRegex() {
printlnMethodName();
assertThat(READER.readConfig(new ByteArrayInputStream("xyz? What is that?".getBytes())))
.isEmpty();
}
@Test
public void testReadConfig_Empty_Null() {
printlnMethodName();
assertThat(READER.readConfig(null)).isEmpty();
}
@Test
public void testReadConfig_Empty_EmptyFile() {
printlnMethodName();
assertThat(READER.readConfig(new ByteArrayInputStream("".getBytes()))).isEmpty();
}
