diff --git a/test/suites/invalid-strip/escaped-null-byte-in-string/error b/test/suites/invalid-strip/escaped-null-byte-in-string/error
new file mode 100644
index 0000000..0fa36e2
--- /dev/null
+++ b/test/suites/invalid-strip/escaped-null-byte-in-string/error
@@ -0,0 +1,2 @@
+1
+\u0000 is not allowed
diff --git a/test/suites/invalid-strip/escaped-null-byte-in-string/input b/test/suites/invalid-strip/escaped-null-byte-in-string/input
new file mode 100644
index 0000000..60f7f7b
--- /dev/null
+++ b/test/suites/invalid-strip/escaped-null-byte-in-string/input
@@ -0,0 +1 @@
+["\u0000 (null byte not allowed)"]
\ No newline at end of file
diff --git a/test/suites/invalid-strip/null-byte-in-string/error b/test/suites/invalid-strip/null-byte-in-string/error
index 0fa36e2..273f6d1 100644
--- a/test/suites/invalid-strip/null-byte-in-string/error
+++ b/test/suites/invalid-strip/null-byte-in-string/error
@@ -1,2 +1,2 @@
 1
-\u0000 is not allowed
+control character 0x0 near '"null byte '
diff --git a/test/suites/invalid-strip/null-byte-in-string/input b/test/suites/invalid-strip/null-byte-in-string/input
index 60f7f7b..c0d82be 100644
Binary files a/test/suites/invalid-strip/null-byte-in-string/input and b/test/suites/invalid-strip/null-byte-in-string/input differ
diff --git a/test/suites/invalid-strip/null-byte-outside-string/error b/test/suites/invalid-strip/null-byte-outside-string/error
new file mode 100644
index 0000000..f0e68ec
--- /dev/null
+++ b/test/suites/invalid-strip/null-byte-outside-string/error
@@ -0,0 +1,2 @@
+1
+invalid token near end of file
diff --git a/test/suites/invalid-strip/null-byte-outside-string/input b/test/suites/invalid-strip/null-byte-outside-string/input
new file mode 100644
index 0000000..75447d8
Binary files /dev/null and b/test/suites/invalid-strip/null-byte-outside-string/input differ
diff --git a/test/suites/invalid/escaped-null-byte-in-string/error b/test/suites/invalid/escaped-null-byte-in-string/error
new file mode 100644
index 0000000..0fa36e2
--- /dev/null
+++ b/test/suites/invalid/escaped-null-byte-in-string/error
@@ -0,0 +1,2 @@
+1
+\u0000 is not allowed
diff --git a/test/suites/invalid/escaped-null-byte-in-string/input b/test/suites/invalid/escaped-null-byte-in-string/input
new file mode 100644
index 0000000..22ae82b
--- /dev/null
+++ b/test/suites/invalid/escaped-null-byte-in-string/input
@@ -0,0 +1 @@
+["\u0000 (null byte not allowed)"]
diff --git a/test/suites/invalid/null-byte-in-string/error b/test/suites/invalid/null-byte-in-string/error
index 0fa36e2..273f6d1 100644
--- a/test/suites/invalid/null-byte-in-string/error
+++ b/test/suites/invalid/null-byte-in-string/error
@@ -1,2 +1,2 @@
 1
-\u0000 is not allowed
+control character 0x0 near '"null byte '
diff --git a/test/suites/invalid/null-byte-in-string/input b/test/suites/invalid/null-byte-in-string/input
index 22ae82b..268d1f1 100644
Binary files a/test/suites/invalid/null-byte-in-string/input and b/test/suites/invalid/null-byte-in-string/input differ
diff --git a/test/suites/invalid/null-byte-outside-string/error b/test/suites/invalid/null-byte-outside-string/error
new file mode 100644
index 0000000..f0e68ec
--- /dev/null
+++ b/test/suites/invalid/null-byte-outside-string/error
@@ -0,0 +1,2 @@
+1
+invalid token near end of file
diff --git a/test/suites/invalid/null-byte-outside-string/input b/test/suites/invalid/null-byte-outside-string/input
new file mode 100644
index 0000000..aa550eb
Binary files /dev/null and b/test/suites/invalid/null-byte-outside-string/input differ