tests: Add tests to exercise lexer; and some more complex number tests.

1 files changed, 12 insertions, 2 deletions

diff --git a/tests/basics/string1.py b/tests/basics/string1.py
index f58fcd401a..8d5f4618dc 100644
--- a/tests/basics/string1.py
+++ b/tests/basics/string1.py
@@ -1,17 +1,27 @@
 # basic strings
 
+# literals
+print('abc')
+print(r'abc')
+print(u'abc')
+print(repr('\a\b\t\n\v\f\r'))
+print('\z') # unrecognised escape char
+
+# construction
 print(str())
+print(str('abc'))
 
+# inplace addition
 x = 'abc'
 print(x)
-
 x += 'def'
 print(x)
 
+# binary ops
 print('123' + "456")
-
 print('123' * 5)
 
+# subscription
 print('abc'[1])
 print('abc'[-1])
 try: