diff options
Diffstat (limited to 'libjava/testsuite/libjava.lang/StackTrace.java')
-rw-r--r-- | libjava/testsuite/libjava.lang/StackTrace.java | 76 |
1 files changed, 76 insertions, 0 deletions
diff --git a/libjava/testsuite/libjava.lang/StackTrace.java b/libjava/testsuite/libjava.lang/StackTrace.java new file mode 100644 index 0000000..b16e297 --- /dev/null +++ b/libjava/testsuite/libjava.lang/StackTrace.java @@ -0,0 +1,76 @@ +// Check that stack trace's work, and stack trace line numbers, if available, +// are correct. + +public class StackTrace +{ + public static void main(String[] args) + { + try + { + a(); + } + catch (Exception x) + { + StackTraceElement[] trace = x.getStackTrace(); + checkTrace(trace); + } + } + + static void a() + { + new Inner(); + } + + static class Inner + { + public Inner() + { + doCrash(null); + } + + public void doCrash(Object o) + { + o.toString(); + } + } + + static void checkTrace(StackTraceElement[] trace) + { + System.out.println("Trace length = " + trace.length); + checkLine(trace[0], "StackTrace$Inner", "doCrash", 33); + checkLine(trace[1], "StackTrace$Inner", "<init>", 28); + checkLine(trace[2], "StackTrace", "a", 21); + checkLine(trace[3], "StackTrace", "main", 10); + } + + static void checkLine(StackTraceElement frame, String expected_cl, + String expected_method, int expected_line) + { + if (frame.getClassName().equals(expected_cl)) + System.out.print(expected_cl); + else + System.out.print("FAIL - expected " + expected_cl + ", got: " + + frame.getClassName()); + + System.out.print("."); + + if (frame.getMethodName().equals(expected_method)) + System.out.print(expected_method); + else + System.out.print("FAIL - expected " + expected_method + ", got: " + + frame.getMethodName()); + + System.out.print(":"); + + // Permit either the correct line number or no line number. This is so + // we don't fail on platforms that don't yet support reading debug info + // for stack traces, or when no debug info is available. + if (frame.getLineNumber() < 0 + || (frame.getLineNumber() == expected_line + && frame.getFileName().equals("StackTrace.java"))) + System.out.println("OK"); + else + System.out.println("FAIL - expected " + expected_line + ", got: " + + frame.getLineNumber()); + } +} |