btrfs-progs: tests: add test driver for fuzzed images

Signed-off-by: David Sterba <dsterba@suse.com>

Makefile.in

@@ -205,11 +205,15 @@ test-mkfs: btrfs mkfs.btrfs
 	@echo "    [TEST]   mkfs-tests.sh"
 	$(Q)bash tests/mkfs-tests.sh
 
+test-fuzz: btrfs
+	@echo "    [TEST]   fuzz-tests.sh"
+	$(Q)bash tests/fuzz-tests.sh
+
 test-clean:
 	@echo "Cleaning tests"
 	$(Q)bash tests/clean-tests.sh
 
-test: test-fsck test-mkfs test-convert test-misc
+test: test-fsck test-mkfs test-convert test-misc test-fuzz
 
 #
 # NOTE: For static compiles, you need to have all the required libs

tests/fuzz-tests.sh

@@ -0,0 +1,41 @@
+#!/bin/bash
+#
+# misc tests on fuzzed or crafted images
+
+unset TOP
+unset LANG
+LANG=C
+SCRIPT_DIR=$(dirname $(readlink -f $0))
+TOP=$(readlink -f $SCRIPT_DIR/../)
+TEST_DEV=${TEST_DEV:-}
+RESULTS="$TOP/tests/fuzz-tests-results.txt"
+IMAGE="$TOP/tests/test.img"
+
+source $TOP/tests/common
+
+export TOP
+export RESULTS
+export LANG
+export IMAGE
+
+rm -f $RESULTS
+
+check_prereq btrfs
+
+# The tests are driven by their custom script called 'test.sh'
+
+for i in $(find $TOP/tests/fuzz-tests -maxdepth 1 -mindepth 1 -type d	\
+	${TEST:+-name "$TEST"} | sort)
+do
+	name=$(basename $i)
+	cd $i
+	if [ -x test.sh ]; then
+		echo "=== Entering $i" >> $RESULTS
+		echo "    [TEST]   $name"
+		./test.sh
+		if [ $? -ne 0 ]; then
+			_fail "test failed for case $(basename $i)"
+		fi
+	fi
+	cd $TOP
+done