private static String getNextLine(LineNumberReader input) {
try {
return input.readLine();
} catch (IOException e) {
throw new RuntimeException("Exception reading next line");
}
}
/**
* @return String containing error messages for any failed cases. In the case that there are no
* failed cases, the empty string is returned. In the case where commands is empty (there
* are no more test cases and the end of the file has been reached), null is returned.
*/
public static String runTest(LineNumberReader commands) {
boolean endOfFile = initFields(commands, false);
if (endOfFile) {
return null;
}
while (true) {
String commandLine = getNextRealLine(commands);
int lineNumber = commands.getLineNumber();
if (InvariantAddAndCheckTester.isComment(commandLine)) {
continue;
} else if (isTestTerminator(commandLine)) {
break;
} else if (isAddCommand(commandLine) || isCheckCommand(commandLine)) {
exicuteCheckOrAddCommand(commandLine, lineNumber);
} else if (isCompareCommand(commandLine)) {
} else {
throw new RuntimeException("unrecognized command");
}
}
return results.toString();
}
/**
* @return a String containing the proper add and check commands for this input lines of this
* test case.
*/
public static String generateTest(LineNumberReader commands) {
boolean endOfFile = initFields(commands, true);
if (endOfFile) return null;
while (true) {
String commandLine = getNextLine(commands).trim();
int lineNumber = commands.getLineNumber();
if (InvariantAddAndCheckTester.isComment(commandLine)) {
results.append(commandLine + lineSep);
} else if (isTestTerminator(commandLine)) {
results.append(commandLine + lineSep + lineSep);
break;
} else if (isAddCommand(commandLine) || isCheckCommand(commandLine)) {
generateCheckOrAddCommand(commandLine, lineNumber);
} else if (isCompareCommand(commandLine)) {
// generateCompareCommand(commandLine);
} else {
throw new RuntimeException("unrecognized command");
}
}
return results.toString();
}
private void add(PptTopLevel ppt, ValueTuple vt) {
// Add the sample to any splitters
if (ppt.has_splitters()) {
for (PptSplitter ppt_split : ppt.splitters) {
PptConditional ppt_cond = ppt_split.choose_conditional(vt);
if (ppt_cond != null) add(ppt_cond, vt);
else debug.fine(": sample doesn't pick conditional");
}
}
// if this is a numbered exit, apply to the combined exit as well
if (!(ppt instanceof PptConditional) && ppt.ppt_name.isNumberedExitPoint()) {
PptTopLevel parent = all_ppts.get(ppt.ppt_name.makeExit());
if (parent != null) {
parent.get_missingOutOfBounds(ppt, vt);
add(parent, vt);
}
}
// If the point has no variables, skip it
if (ppt.var_infos.length == 0) return;
// We should have received sample here before, or there is nothing
// to check.
// Yoav added: It can be that the different dtrace and inv files have different program points
if (false && ppt.num_samples() <= 0)
Assert.assertTrue(
ppt.num_samples() > 0,
"ppt " + ppt.name + " has 0 samples and " + ppt.var_infos.length + " variables");
// Loop through each slice
slice_loop:
for (Iterator<PptSlice> i = ppt.views_iterator(); i.hasNext(); ) {
PptSlice slice = i.next();
if (debug_detail.isLoggable(Level.FINE))
debug_detail.fine(
": processing slice " + slice + "vars: " + Debug.toString(slice.var_infos, vt));
// If any variables are missing, skip this slice
for (int j = 0; j < slice.var_infos.length; j++) {
VarInfo v = slice.var_infos[j];
int mod = vt.getModified(v);
if (v.isMissing(vt)) {
if (debug_detail.isLoggable(Level.FINE))
debug_detail.fine(": : Skipping slice, " + v.name() + " missing");
continue slice_loop;
}
if (v.missingOutOfBounds()) {
if (debug_detail.isLoggable(Level.FINE))
debug.fine(": : Skipping slice, " + v.name() + " out of bounds");
continue slice_loop;
}
}
// Loop through each invariant
for (Invariant inv : slice.invs) {
if (debug_detail.isLoggable(Level.FINE))
debug_detail.fine(": : Processing invariant: " + inv);
if (!inv.isActive()) {
if (debug_detail.isLoggable(Level.FINE))
debug_detail.fine(": : skipped non-active " + inv);
continue;
}
// Yoav added
if (!activeInvariants.contains(inv)) {
// System.out.printf ("skipping invariant %s:%s\n", inv.ppt.name(),
// inv.format());
continue;
}
// String invRep = invariant2str(ppt, inv);
testedInvariants.add(inv);
InvariantStatus status = inv.add_sample(vt, 1);
sample_cnt++;
if (status != InvariantStatus.NO_CHANGE) {
LineNumberReader lnr = FileIO.data_trace_state.reader;
String line = (lnr == null) ? "?" : String.valueOf(lnr.getLineNumber());
if (!quiet) {
output_stream.println(
"At ppt "
+ ppt.name
+ ", Invariant '"
+ inv.format()
+ "' invalidated by sample "
+ Debug.toString(slice.var_infos, vt)
+ "at line "
+ line
+ " in file "
+ FileIO.data_trace_state.filename);
}
failedInvariants.add(inv);
activeInvariants.remove(inv);
error_cnt++;
}
}
}
}