@Test
public void testInjectionOfString() throws CLIException {
HelloClI command = new HelloClI();
CLI cli = CLIConfigurator.define(HelloClI.class);
CommandLine evaluatedCLI = cli.parse(Arrays.asList("--name", "vert.x"));
CLIConfigurator.inject(evaluatedCLI, command);
assertThat(command.run()).isEqualToIgnoringCase("Hello vert.x");
assertThat(command.name).isEqualToIgnoringCase("vert.x");
}
@Test
public void retrievingExtraArguments() throws ParsingException {
cli =
new CLI() {
{
operand("input");
}
};
Args args = cli.parse("input", "output", "encoding");
assertEquals(asList("output", "encoding"), args.others());
}
@Test
public void specifyingADefaultValueForAnOption() throws Exception {
cli =
new CLI() {
{
option("-b").takingArgument("SIZE").ofType(int.class).defaultingTo(1024);
}
};
cli.parse();
assertEquals(1024, cli.get("-b"));
}
@Test
public void usingSimpleOptionSwitches() throws ParsingException {
cli =
new CLI() {
{
flag("-x").describedAs("Turns debugging on");
}
};
cli.parse("-x");
assertTrue(cli.has("-x"));
}
@Test
public void detectingAnUnrecognizedOption() throws Exception {
cli = new CLI();
try {
cli.parse("--whatever");
fail("Expected exception " + UnrecognizedOptionException.class.getName());
} catch (UnrecognizedOptionException expected) {
assertEquals("--whatever", expected.getOption());
assertThat(expected.getMessage(), containsString("whatever"));
}
}
@Test
public void specifyingTheTypeOfAnOptionArgument() throws Exception {
cli =
new CLI() {
{
option("-b").takingArgument("SIZE").ofType(int.class);
}
};
cli.parse("-b", "1024");
int blockSize = cli.<Integer>get("-b");
assertEquals(1024, blockSize);
}
@Test
public void definingAnOptionWithAnAliasForm() throws Exception {
cli =
new CLI() {
{
option("-x").alias("--debug");
}
};
cli.parse("--debug");
assertTrue(cli.has("-x"));
assertTrue(cli.has("--debug"));
}
@Test
public void usingACustomOptionType() throws Exception {
cli =
new CLI() {
{
coerceType(BigDecimal.class).using(new BigDecimalCoercer());
option("--size VALUE").ofType(BigDecimal.class);
}
};
cli.parse("--size", "1000.00");
assertEquals(new BigDecimal("1000.00"), cli.get("--size"));
}
@Test
public void specifyingTheTypeOfAPositionalArgument() throws ParsingException {
cli =
new CLI() {
{
operand("input").ofType(File.class);
}
};
cli.parse("/path/to/input");
File inputFile = cli.get("input");
assertEquals("/path/to/input", inputFile.getAbsolutePath());
}
@Test
public void specifyingAnOptionInLiteralForm() throws Exception {
cli =
new CLI() {
{
option("-h", "--host HOSTNAME", "Hostname to bind to");
}
};
cli.parse("--host", "0.0.0.0");
assertTrue(cli.has("-h"));
assertTrue(cli.has("--host"));
assertEquals("0.0.0.0", cli.get("-h"));
}
@Test
public void executingACallbackWhenAnOptionIsDetected() throws Exception {
final CaptureLocale captureLocale = new CaptureLocale();
cli =
new CLI() {
{
option("-l LOCALE").ofType(Locale.class).whenPresent(captureLocale);
}
};
cli.parse("-l", "FR");
assertEquals(Locale.FRENCH, captureLocale.locale);
}
@Test
public void usingBuiltInCoercers() throws Exception {
cli =
new CLI() {
{
option("-c").takingArgument("CLASSNAME").ofType(Class.class);
operand("file").ofType(File.class);
}
};
cli.parse("-c", "java.lang.String", "/path/to/file");
assertEquals(String.class, cli.get("-c"));
assertEquals(new File("/path/to/file"), cli.get("file"));
}
@Test
public void definingAnOptionThatExpectsAnArgument() throws Exception {
cli =
new CLI() {
{
option("-b").takingArgument("SIZE");
}
};
cli.parse("-b", "1024");
assertTrue(cli.has("-b"));
assertEquals("1024", cli.get("-b"));
}
@Test
public void usingPositionalArguments() throws Exception {
cli =
new CLI() {
{
operand("input").describedAs("The input file");
operand("output").describedAs("The output file");
}
};
cli.parse("input", "output");
assertEquals("input", cli.get("input"));
assertEquals("output", cli.get("output"));
}
@Test
public void retrievingArgumentsInATypeSafeWay() throws ParsingException {
cli = new CLI();
ArgumentSpec<Boolean> verbose = cli.option("-v").ofType(Boolean.class);
ArgumentSpec<Integer> size =
cli.option("--block-size").takingArgument("SIZE").ofType(int.class).defaultingTo(1024);
OperandSpec<File> input = cli.operand("input").ofType(File.class);
Args args = cli.parse("-v", "--block-size", "2048", "/path/to/input");
File inputFile = input.get(args);
assertEquals("/path/to/input", inputFile.getAbsolutePath());
boolean verboseFlag = verbose.get(args);
assertEquals(true, verboseFlag);
int blockSize = size.get(args);
assertEquals(2048, blockSize);
}
@Test
public void omittingARequiredOptionArgument() throws Exception {
cli =
new CLI() {
{
option("-b SIZE").ofType(int.class);
}
};
try {
cli.parse("-b");
fail("Expected exception " + ArgumentMissingException.class.getName());
} catch (ArgumentMissingException expected) {
assertEquals("-b", expected.getUnsatisfiedOption());
assertThat(expected.getMessage(), containsString("-b"));
}
}
@Test
public void omittingARequiredPositionalArgument() throws Exception {
cli =
new CLI() {
{
operand("input");
operand("output");
}
};
try {
cli.parse("input");
fail("Expected exception " + MissingOperandException.class.getName());
} catch (MissingOperandException expected) {
assertEquals("output", expected.getMissingOperand());
assertThat(expected.getMessage(), containsString("output"));
}
}
@Test
public void usingAnInvalidPositionalArgument() throws Exception {
cli =
new CLI() {
{
operand("size").ofType(int.class);
}
};
try {
cli.parse("LITERAL");
fail("Expected exception " + InvalidArgumentException.class.getName());
} catch (InvalidArgumentException expected) {
assertEquals("size", expected.getUnsatisfiedArgument());
assertEquals("LITERAL", expected.getOffendingValue());
assertThat(expected.getMessage(), containsString("size"));
assertThat(expected.getMessage(), containsString("LITERAL"));
}
}
public static void main(String[] args) {
try {
CLI.parse(args, new String[0]);
InputStream inputStream =
args.length == 0 ? System.in : new java.io.FileInputStream(CLI.infile);
if (CLI.target == CLI.SCAN) {
DecafScanner lexer = new DecafScanner(new DataInputStream(inputStream));
Token token;
boolean done = false;
while (!done) {
try {
for (token = lexer.nextToken();
token.getType() != DecafParserTokenTypes.EOF;
token = lexer.nextToken()) {
String type = "";
String text = token.getText();
switch (token.getType()) {
case DecafScannerTokenTypes.ID:
type = " IDENTIFIER";
break;
}
System.out.println(token.getLine() + type + " " + text);
}
done = true;
} catch (Exception e) {
// print the error:
System.out.println(CLI.infile + " " + e);
lexer.consume();
}
}
} else if (CLI.target == CLI.PARSE || CLI.target == CLI.DEFAULT) {
DecafScanner lexer = new DecafScanner(new DataInputStream(inputStream));
DecafParser parser = new DecafParser(lexer);
parser.program();
}
} catch (Exception e) {
// print the error:
System.out.println(CLI.infile + " " + e);
}
}
@Test
public void aMoreComplexExampleThatUsesAMixOfDifferentArguments() throws Exception {
cli =
new CLI() {
{
flag("-h").describedAs("Human readable format");
option("-b").alias("--block-size").takingArgument("SIZE").ofType(int.class);
flag("-x");
operand("input").as("INFILE").describedAs("The input file");
operand("output", "OUTFILE", "The output file");
}
};
cli.parse("-h", "--block-size", "1024", "-x", "input", "output", "extra", "more extra");
assertEquals(6, cli.options().size());
assertTrue(cli.has("-h"));
assertEquals(1024, cli.get("--block-size"));
assertTrue(cli.has("-x"));
assertEquals("input", cli.get("input"));
assertEquals("output", cli.get("output"));
assertEquals(asList("extra", "more extra"), cli.others());
}
public static void main(String[] args) {
try {
CLI.parse(args, new String[0]);
InputStream inputStream =
args.length == 0 ? System.in : new java.io.FileInputStream(CLI.infile);
if (CLI.target == CLI.SCAN) {
DecafScanner lexer = new DecafScanner(new DataInputStream(inputStream));
Token token;
boolean done = false;
while (!done) {
try {
for (token = lexer.nextToken();
token.getType() != DecafParserTokenTypes.EOF;
token = lexer.nextToken()) {
String type = "";
String text = token.getText();
switch (token.getType()) {
case DecafScannerTokenTypes.ID:
type = " IDENTIFIER";
break;
case DecafScannerTokenTypes.CHAR:
type = " CHARLITERAL";
break;
case DecafScannerTokenTypes.TRUE:
case DecafScannerTokenTypes.FALSE:
type = " BOOLEANLITERAL";
break;
case DecafScannerTokenTypes.HEX:
case DecafScannerTokenTypes.DECIMAL:
type = " INTLITERAL";
break;
case DecafScannerTokenTypes.STRING:
type = " STRINGLITERAL";
break;
}
System.out.println(token.getLine() + type + " " + text);
}
done = true;
} catch (Exception e) {
// print the error:
System.out.println(CLI.infile + " " + e);
lexer.consume();
}
}
} else if (CLI.target == CLI.PARSE || CLI.target == CLI.DEFAULT) {
DecafScanner lexer = new DecafScanner(new DataInputStream(inputStream));
DecafParser parser = new DecafParser(lexer, CLI.debug);
// DecafParser parser = new DecafParser (lexer);
parser.program();
} else if (CLI.target == CLI.INTER) {
DecafScanner lexer = new DecafScanner(new DataInputStream(inputStream));
DecafParser parser = new DecafParser(lexer, CLI.debug);
parser.program();
IrNode irRoot = parser.getIrTree();
SemanticChecker checker = new SemanticChecker(CLI.infile, CLI.debug);
if (CLI.debug) System.out.println("--- checking -----");
checker.checkProgram((IrClassDecl) irRoot);
} else if (CLI.target == CLI.LOWIR) {
DecafScanner lexer = new DecafScanner(new DataInputStream(inputStream));
DecafParser parser = new DecafParser(lexer, CLI.debug);
parser.program();
IrNode irRoot = parser.getIrTree();
SemanticChecker checker = new SemanticChecker(CLI.infile, CLI.debug);
if (CLI.debug) System.out.println("--- checking -----");
checker.checkProgram((IrClassDecl) irRoot);
CodeGen codegen = new CodeGen(irRoot, CLI.debug);
codegen.genLowIr();
codegen.printLowIr();
}
} catch (Exception e) {
// print the error:
System.out.println(CLI.infile + " " + e);
}
}
private CommandLine parse(CLI cli, String... args) throws CLIException {
return cli.parse(Arrays.asList(args));
}