3 files changed, 51 insertions, 1 deletions
diff --git a/tests/018.sh b/tests/018.sh
new file mode 100644
index 0000000..eb86a5e
--- /dev/null
+++ b/tests/018.sh
@@ -0,0 +1,22 @@
+set -e
+
+bash ../../test_output.sh "" <<'EOF'
+int main() {
+    "";
+    return 0;
+}
+EOF
+
+bash ../../test_output.sh "" <<'EOF'
+int main() {
+    "abc";
+    return 0;
+}
+EOF
+
+bash ../../test_output.sh "" <<'EOF'
+int main() {
+    "\"foo\"bar\\\n\"";
+    return 0;
+}
+EOF
diff --git a/tests/019.sh b/tests/019.sh
new file mode 100644
index 0000000..d31f154
--- /dev/null
+++ b/tests/019.sh
@@ -0,0 +1,28 @@
+set -e
+
+bash ../../test_output.sh "" <<'EOF'
+int printf();
+
+int main() {
+    printf("");
+    return 0;
+}
+EOF
+
+bash ../../test_output.sh "Hello, World!" <<'EOF'
+int printf();
+
+int main() {
+    printf("Hello, World!\n");
+    return 0;
+}
+EOF
+
+bash ../../test_output.sh '"Hello, World!"' <<'EOF'
+int printf();
+
+int main() {
+    printf("\"Hello, World!\"\n");
+    return 0;
+}
+EOF
diff --git a/tests/test_output.sh b/tests/test_output.sh
index f4a4a20..2c8fb29 100644
--- a/tests/test_output.sh
+++ b/tests/test_output.sh
@@ -16,7 +16,7 @@ fi
 
 expected="$1"
 
-if [[ "$output" -ne "$expected" ]]; then
+if [[ "$output" != "$expected" ]]; then
     echo "invalid output: expected '$expected', but got '$output'" >&2
     exit 1
 fi