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+# Syntax errors
+
+Test cases to ensure that red knot does not panic if there are syntax errors in the source code.
+
+## Keyword as identifiers
+
+When keywords are used as identifiers, the parser recovers from this syntax error by emitting an
+error and including the text value of the keyword to create the `Identifier` node.
+
+### Name expression
+
+```py
+# error: [invalid-syntax]
+pass = 1
+
+# error: [invalid-syntax]
+# error: [invalid-syntax]
+type pass = 1
+
+# error: [invalid-syntax]
+# error: [invalid-syntax]
+# error: [invalid-syntax]
+# error: [invalid-syntax]
+# error: [invalid-syntax]
+def True(for):
+    # error: [invalid-syntax]
+    pass
+
+# TODO: Why is there two diagnostics for the same error?
+
+# error: [invalid-syntax]
+# error: [invalid-syntax]
+# error: [invalid-syntax]
+# error: [unresolved-reference] "Name `pass` used when not defined"
+# error: [unresolved-reference] "Name `pass` used when not defined"
+for while in pass:
+    pass
+
+# error: [invalid-syntax]
+# error: [unresolved-reference] "Name `in` used when not defined"
+while in:
+    pass
+
+# error: [invalid-syntax]
+# error: [invalid-syntax]
+# error: [unresolved-reference] "Name `match` used when not defined"
+match while:
+    # error: [invalid-syntax]
+    # error: [invalid-syntax]
+    # error: [invalid-syntax]
+    # error: [unresolved-reference] "Name `case` used when not defined"
+    case in:
+        # error: [invalid-syntax]
+        # error: [invalid-syntax]
+        pass
+```
+
+### Attribute expression
+
+```py
+# TODO: Why is there two diagnostics for the same error?
+# TODO: Check when support for attribute expressions is added
+
+# error: [invalid-syntax]
+# error: [unresolved-reference] "Name `foo` used when not defined"
+# error: [unresolved-reference] "Name `foo` used when not defined"
+for x in foo.pass:
+    pass
+```