diff --git a/tests/misc/non_compliant_lexer.py b/tests/misc/non_compliant_lexer.py
new file mode 100644
index 0000000000..e0618efbbe
--- /dev/null
+++ b/tests/misc/non_compliant_lexer.py
@@ -0,0 +1,19 @@
+# lexer tests for things that are not implemented, or have non-compliant behaviour
+
+# uPy requires spaces between literal numbers and keywords, CPy doesn't
+try:
+    eval('1and 0')
+except SyntaxError:
+    print('SyntaxError')
+try:
+    eval('1or 0')
+except SyntaxError:
+    print('SyntaxError')
+try:
+    eval('1if 1else 0')
+except SyntaxError:
+    print('SyntaxError')
+try:
+    eval('1if 0else 0')
+except SyntaxError:
+    print('SyntaxError')
diff --git a/tests/misc/non_compliant_lexer.py.exp b/tests/misc/non_compliant_lexer.py.exp
new file mode 100644
index 0000000000..18b00cc767
--- /dev/null
+++ b/tests/misc/non_compliant_lexer.py.exp
@@ -0,0 +1,4 @@
+SyntaxError
+SyntaxError
+SyntaxError
+SyntaxError