gtester: implemented logic to handle failing tests, self tests, and validate XML reports.

* gtester.c: terminate when tests failed. keep XML valid when test cases fail.
restart test binaries when tests fail, resuming after the last processed test.
support --gtester-selftest to run gtester itself as test program.
support --test-arg=<arg> to pass args along to test programs. added
main_selftest() which does a simplistic fixture test. fail if exit
code of test programs is not 0.

* gtestframework.h: added G_TEST_LOG_SKIP_CASE test log message type.

* gtestframework.c: support --GTestSkipCount=<n> to skip a number of tests.

* tests/Makefile.am: added test-report: for demonstration purposes.
added gtester-xmllint-check: and hooked it up into check:, this rule calls
gtester as test program, running it's selftest, and then uses xmllint to
validate the generate XML test log file.

svn path=/trunk/; revision=5904

glib/tests/Makefile.am

@@ -11,8 +11,18 @@ TEST_PROGS       += testing
 testing_SOURCES	  = testing.c
 testing_LDADD	  = $(progs_ldadd)
 
-
+# exemplary unit test rules
 test:
 	${GTESTER} --verbose ${TEST_PROGS}
-.PHONY: test
+test-report:
+	${GTESTER} --verbose -k -o testreport.xml ${TEST_PROGS}
+.PHONY: test test-report
 check-local: test
+
+
+# some testing of gtester funcitonality
+XMLLINT=xmllint
+gtester-xmllint-check: # check testreport xml with xmllint if present
+	${GTESTER} -k --quiet -o tmpsample.xml --test-arg=--gtester-selftest ${GTESTER}
+	${XMLLINT} --version 2>/dev/null; test "$$?" != 0 || ${XMLLINT} --noout tmpsample.xml
+check-am: gtester-xmllint-check