public void createScanner() throws TestFailException {
jflexFiles.add((new File(testPath, testName + ".flex")).getPath());
// invoke JFlex
jflexResult = Exec.execJFlex(jflexCmdln, jflexFiles);
// System.out.println(jflexResult);
if (jflexResult.getSuccess()) {
// Scanner generation successful
if (Main.verbose) {
System.out.println("Scanner generation successful");
}
if (expectJFlexFail) {
System.out.println("JFlex failure expected!");
throw new TestFailException();
}
// check JFlex output conformance
File expected = new File(testPath, testName + "-flex.output");
if (expected.exists()) {
DiffStream check = new DiffStream();
String diff;
try {
diff =
check.diff(
jflexDiff, new StringReader(jflexResult.getOutput()), new FileReader(expected));
} catch (FileNotFoundException e) {
System.out.println("Error opening file " + expected);
throw new TestFailException();
}
if (diff != null) {
System.out.println("Test failed, unexpected jflex output: " + diff);
System.out.println("JFlex output: " + jflexResult.getOutput());
throw new TestFailException();
}
} else {
System.out.println("Warning: no file for expected output [" + expected + "]");
}
// Compile Scanner
String toCompile = new File(testPath, className + ".java").getPath();
if (Main.verbose) {
System.out.println("File to Compile: " + toCompile);
}
javacFiles.add(toCompile);
javacResult = Exec.execJavac(testPath, Main.jflexTestVersion);
// System.out.println(javacResult);
if (Main.verbose) {
System.out.println(
"Compilation successful: "
+ javacResult.getSuccess()
+ " [expected: "
+ !expectJavacFail
+ "]");
}
if (javacResult.getSuccess() == expectJavacFail) {
System.out.println("Compilation failed, messages:");
System.out.println(javacResult.getOutput());
throw new TestFailException();
}
} else {
if (!expectJFlexFail) {
System.out.println("Scanner generation failed!");
System.out.println("JFlex output was:\n" + jflexResult.getOutput());
throw new TestFailException();
} else {
// check JFlex output conformance
File expected = new File(testPath, testName + "-flex.output");
if (expected.exists()) {
DiffStream check = new DiffStream();
String diff;
try {
diff =
check.diff(
jflexDiff, new StringReader(jflexResult.getOutput()), new FileReader(expected));
} catch (FileNotFoundException e) {
System.out.println("Error opening file " + expected);
throw new TestFailException();
}
if (diff != null) {
System.out.println("Test failed, unexpected jflex output: " + diff);
System.out.println("JFlex output: " + jflexResult.getOutput());
throw new TestFailException();
}
}
}
}
}
