Convert functional test suite to TAP

Automake provides a nice test harness that can parse TAP results, so
switch to using that.

Signed-off-by: Patrick McCarty <patrick.mccarty@intel.com>

.gitignore

@@ -28,3 +28,7 @@ stamp-h1
 bsdiff-*.tar.xz
 test/*.diff
 test/*.out
+test/*.log
+test/*.trs
+tap-driver.sh
+test-suite.log

Makefile.am

@@ -104,6 +104,11 @@ install-exec-hook:
 
 TEST_EXTENSIONS = .sh
 if ENABLE_TESTS
+tap_driver = env AM_TAP_AWK='$(AWK)' $(SHELL) \
+	$(top_srcdir)/tap-driver.sh
+
+LOG_DRIVER = $(tap_driver)
+SH_LOG_DRIVER = $(tap_driver)
 TESTS = $(dist_check_SCRIPTS)
 dist_check_SCRIPTS = \
 	test/run.sh

configure.ac

@@ -66,6 +66,7 @@ AS_IF([test "$enable_tests" != "no"], [
 AM_CONDITIONAL([ENABLE_TESTS], [test "$enable_tests" != "no"])
 
 AC_CONFIG_FILES([Makefile data/bsdiff.pc])
+AC_REQUIRE_AUX_FILE([tap-driver.sh])
 AC_OUTPUT
 
 AC_MSG_RESULT([

test/run.sh

@@ -1,5 +1,11 @@
 #!/bin/bash
 
+# $srcdir variable is set by automake environment
+cd $srcdir/test
+
+# number is incremented after running every test
+testnum=0
+
 sudo rm -f *.diff *.out
 
 libdir="$(realpath "../.libs")"
@@ -7,51 +13,72 @@ ldpath="LD_LIBRARY_PATH=$libdir"
 BSDIFF="sudo $ldpath valgrind -q $libdir/bsdiff"
 BSPATCH="sudo $ldpath valgrind -q $libdir/bspatch"
 
-echo -n "5.."
+# If exit status is 0, the test succeeded. Else it failed.
+check_success() {
+	res=$?
+	[ -n "$1" ] && msg="$1" || msg=""
+	testnum=$(expr $testnum + 1)
+	if [ $res -ne 0 ]; then
+		echo "not ok $testnum - $msg"
+	else
+		echo "ok $testnum"
+	fi
+}
+
+# If exit status is 255, the test succeeded. Else it failed.
+check_failure() {
+	res=$?
+	[ -n "$1" ] && msg="$1" || msg=""
+	testnum=$(expr $testnum + 1)
+	if [ $res -ne 255 ]; then
+		echo "not ok $testnum - $msg"
+	else
+		echo "ok $testnum"
+	fi
+}
+
+echo "Running test #5 ..."
 $BSPATCH data/5.bspatch.original 5.out data/5.bspatch.diff
-echo -n "6.."
+check_success
+
+echo "Running test #6 ..."
 $BSPATCH data/6.bspatch.original 6.out data/6.bspatch.diff
-echo -n "7.."
+check_success
+
+echo "Running test #7 ..."
 $BSPATCH data/7.bspatch.original 7.out data/7.bspatch.diff
-echo -n "8.."
+check_success
+
+echo "Running test #8 ..."
 $BSPATCH data/8.bspatch.original 8.out data/8.bspatch.diff
-echo -n "9.."
+check_success
+
+echo "Running test #9 ..."
 $BSPATCH data/9.bspatch.original 9.out data/9.bspatch.diff
 diff data/9.bspatch.modified 9.out
-if [ $? -ne 0 ]
-then
-	echo "bspatch 9 output does not match expected!!"
-fi
-echo -n "10.."
+check_success "output does not match expected!!"
+
+echo "Running test #10 ..."
 $BSPATCH data/10.bspatch.original 10.out data/10.bspatch.diff
 diff data/10.bspatch.modified 10.out
-if [ $? -ne 0 ]
-then
-	echo "bspatch 10 output does not match expected!!"
-fi
+check_success "output does not match expected!!"
+
 #same as 9 but with zeros encoding
-echo -n "11.."
+echo "Running test #11 ..."
 $BSPATCH data/9.bspatch.original 11.out data/11.bspatch.diff
 diff data/9.bspatch.modified 11.out
-if [ $? -ne 0 ]
-then
-	echo "bspatch 11 output does not match expected!!"
-fi
-echo -n "12.."
+check_success "output does not match expected!!"
+
+echo "Running test #12 ..."
 $BSPATCH data/12.bspatch.original 12.out data/12.bspatch.diff
 diff data/12.bspatch.modified 12.out
-if [ $? -ne 0 ]
-then
-	echo "bspatch 12 output does not match expected!!"
-fi
-echo -n "13.."
+check_success "output does not match expected!!"
+
+echo "Running test #13 ..."
 $BSDIFF data/13.bspatch.original data/13.bspatch.modified 13.diff any
 $BSPATCH data/13.bspatch.original 13.out 13.diff
 diff data/13.bspatch.modified 13.out
-if [ $? -ne 0 ]
-then
-	echo "bspatch 13 output does not match expected!!"
-fi
+check_success "output does not match expected!!"
 
 # Next a very loooong running test, but one which successfully condenses the 2MB
 # original file pair into a 26kB bsdiff.  The bsdiff computation alone (ie:
@@ -62,26 +89,21 @@ fi
 # used in a regression test run at every check-in of code changes to the bsdiff
 # implementation.
 #
-#echo -n "14.."
+#echo "Running test #14 ..."
 #$BSDIFF data/14.bspatch.original data/14.bspatch.modified 14.diff any
 #$BSPATCH data/14.bspatch.original 14.out 14.diff
 #diff data/14.bspatch.modified 14.out
-#if [ $? -ne 0 ]
-#then
-#	echo "bspatch 14 output does not match expected!!"
-#fi
+#check_success "output does not match expected!!"
 
-echo -n "15.."
+echo "Running test #15 ..."
 $BSDIFF data/15.bspatch.original data/15.bspatch.modified 15.diff any
 # expected output: "Failed to create delta (-1)"
-if [ $? -ne 255 ]
-then
-	echo "bspatch 15 creation has memory management issue!"
-fi
+check_failure "patch creation has memory management issue!"
 
-echo -n "16.."
+echo "Running test #16 ..."
 # any valgrind errors may indicate a buffer overflow
 $BSPATCH data/16.bspatch.original 16.out data/16.bspatch.diff
+check_success
 
-# add final newline
-echo ""
+# For TAP support, output the plan
+echo "1..${testnum}"