Andy Gibbs 0fea04509a Change VerifyDiagnosticConsumer so that it *must* contain at least one "expected-*" directive. As a result, for test-cases that are not expected to generate any diagnostics, an additional directive "expected-no-diagnostics" has been implemented which can then be included in such test-cases. This new directive may not be used in conjunction with any other "expected-*" directive.
This change was initially proposed as a solution to the problem highlighted by check-in r164677, i.e. that -verify will not cause a test-case failure where the compile command does not actually reference the file.

Patch reviewed by David Blaikie.

llvm-svn: 166281
2012-10-19 12:49:32 +00:00

42 lines
1.4 KiB
C

// This test-case runs several sub-tests on -verify to ensure that correct
// diagnostics are generated in relation to the mis-use and non-use of the
// 'expected-no-diagnostics' directive.
// RUN: %clang_cc1 -DTEST1 -verify %s 2>&1 | FileCheck -check-prefix=CHECK1 %s
#ifdef TEST1
// expected-no-diagnostics
// expected-note {{}}
// CHECK1: error: 'error' diagnostics seen but not expected:
// CHECK1-NEXT: Line 8: expected directive cannot follow 'expected-no-diagnostics' directive
// CHECK1-NEXT: 1 error generated.
#endif
// RUN: %clang_cc1 -DTEST2 -verify %s 2>&1 | FileCheck -check-prefix=CHECK2 %s
#ifdef TEST2
#warning X
// expected-warning@-1 {{X}}
// expected-no-diagnostics
// CHECK2: error: 'error' diagnostics seen but not expected:
// CHECK2-NEXT: Line 19: 'expected-no-diagnostics' directive cannot follow other expected directives
// CHECK2-NEXT: 1 error generated.
#endif
// RUN: %clang_cc1 -DTEST3 -verify %s 2>&1 | FileCheck -check-prefix=CHECK3 %s
// RUN: %clang_cc1 -verify 2>&1 | FileCheck -check-prefix=CHECK3 %s
#ifdef TEST3
// no directives
// CHECK3: error: no expected directives found: consider use of 'expected-no-diagnostics'
// CHECK3-NEXT: 1 error generated.
#endif
// RUN: %clang_cc1 -E -DTEST4 -verify %s 2>&1 | FileCheck -check-prefix=CHECK4 %s
#ifdef TEST4
#warning X
// expected-warning@-1 {{X}}
// CHECK4-NOT: error: no expected directives found: consider use of 'expected-no-diagnostics'
#endif