From f25aa052cd31cab4c6301cca5eb8e5e5f129d5bd Mon Sep 17 00:00:00 2001
From: Pavel Boldin <pboldin@cloudlinux.com>
Date: Wed, 7 Feb 2018 23:59:39 +0200
Subject: [PATCH 15/89] add `fail to unpatch` test

Add a test sample where patch is always busy in the loop and cannot
be unapplied.

Signed-off-by: Pavel Boldin <pboldin@cloudlinux.com>
---
 tests/fail_unpatch/Makefile          |  4 ++++
 tests/fail_unpatch/desc              |  1 +
 tests/fail_unpatch/fail_unpatch.c    | 29 ++++++++++++++++++++++++++++
 tests/fail_unpatch/fail_unpatch.diff | 11 +++++++++++
 tests/run_tests.sh                   | 25 ++++++++++++++++++++++--
 5 files changed, 68 insertions(+), 2 deletions(-)
 create mode 100644 tests/fail_unpatch/Makefile
 create mode 100644 tests/fail_unpatch/desc
 create mode 100644 tests/fail_unpatch/fail_unpatch.c
 create mode 100644 tests/fail_unpatch/fail_unpatch.diff

diff --git a/tests/fail_unpatch/Makefile b/tests/fail_unpatch/Makefile
new file mode 100644
index 0000000..d7680e9
--- /dev/null
+++ b/tests/fail_unpatch/Makefile
@@ -0,0 +1,4 @@
+
+LDLIBS:=-lpthread
+
+include ../makefile.inc
diff --git a/tests/fail_unpatch/desc b/tests/fail_unpatch/desc
new file mode 100644
index 0000000..02151c5
--- /dev/null
+++ b/tests/fail_unpatch/desc
@@ -0,0 +1 @@
+fails to unpatch the code
diff --git a/tests/fail_unpatch/fail_unpatch.c b/tests/fail_unpatch/fail_unpatch.c
new file mode 100644
index 0000000..6b5c50f
--- /dev/null
+++ b/tests/fail_unpatch/fail_unpatch.c
@@ -0,0 +1,29 @@
+#include <stdio.h>
+#include <unistd.h>
+
+void print_greetings_patched(void)
+{
+	while (1) {
+		printf("Hello. This a PATCHED version!\n");
+		sleep(1);
+	}
+}
+
+void print_greetings(void)
+{
+	printf("Hello. This is an UNPATCHED version!\n");
+}
+
+void do_work() {
+	while (1) {
+		print_greetings();
+		sleep(1);
+	}
+}
+
+int main()
+{
+	do_work();
+
+	return 0;
+}
diff --git a/tests/fail_unpatch/fail_unpatch.diff b/tests/fail_unpatch/fail_unpatch.diff
new file mode 100644
index 0000000..49738bd
--- /dev/null
+++ b/tests/fail_unpatch/fail_unpatch.diff
@@ -0,0 +1,11 @@
+--- ./fail_unpatch.c	2018-02-07 18:39:27.145493215 +0200
++++ ./fail_unpatch.c	2018-02-07 18:39:43.349482218 +0200
+@@ -11,7 +11,7 @@
+ 
+ void print_greetings(void)
+ {
+-	printf("Hello. This is an UNPATCHED version!\n");
++	print_greetings_patched();
+ }
+ 
+ void do_work() {
diff --git a/tests/run_tests.sh b/tests/run_tests.sh
index fbfb273..2bdd303 100755
--- a/tests/run_tests.sh
+++ b/tests/run_tests.sh
@@ -105,6 +105,10 @@ check_result() {
 			! grep_tail 'UNPATCHED'
 			return $?
 			;;
+		fail_unpatch)
+			grep_tail '\<PATCHED'
+			return $?
+			;;
 		fail_*)
 			grep_tail 'UNPATCHED'
 			return $?
@@ -163,9 +167,24 @@ test_patch_files_fini() {
 
 
 check_result_unpatch() {
+	local testname="$1"
 	local outfile="$2"
+
 	check_result "$@"
-	test $? -ne "$(cat ${outfile}_patched)"
+	test $? -eq 0
+	local is_unpatched=$?
+
+	test "$(cat ${outfile}_patched)" -eq 1
+	local was_patched=$?
+
+	case $testname in
+		fail_unpatch)
+			test $is_unpatched -eq 0 && test $was_patched -eq 1
+			;;
+		*)
+			test $is_unpatched -eq 1 && test $was_patched -eq 1
+			;;
+	esac
 }
 
 test_unpatch_files_init() {
@@ -200,9 +219,11 @@ test_unpatch_files() {
 
 	check_result $testname $outfile
 	echo $? >${outfile}_patched
+	cat ${outfile}_patched
 
+	echo "============unpatching===============" >>$logfile
 	libcare_ctl unpatch-user -p $pid \
-		>$logfile 2>&1 || :
+		>>$logfile 2>&1 || :
 
 	sleep 2
 
-- 
2.23.0