Add additional test cases

Author: cdce8p

mypyc/test-data/irbuild-str.test

@@ -137,6 +137,38 @@ L4:
 L5:
     unreachable
 
+[case testStrStartswithEndswithTuple]
+from typing import Tuple
+
+def do_startswith(s1: str, s2: Tuple[str, ...]) -> bool:
+    return s1.startswith(s2)
+
+def do_endswith(s1: str, s2: Tuple[str, ...]) -> bool:
+    return s1.endswith(s2)
+[out]
+def do_startswith(s1, s2):
+    s1 :: str
+    s2 :: tuple
+    r0 :: i32
+    r1 :: bit
+    r2 :: bool
+L0:
+    r0 = CPyStr_Startswith(s1, s2)
+    r1 = r0 >= 0 :: signed
+    r2 = truncate r0: i32 to builtins.bool
+    return r2
+def do_endswith(s1, s2):
+    s1 :: str
+    s2 :: tuple
+    r0 :: i32
+    r1 :: bit
+    r2 :: bool
+L0:
+    r0 = CPyStr_Endswith(s1, s2)
+    r1 = r0 >= 0 :: signed
+    r2 = truncate r0: i32 to builtins.bool
+    return r2
+
 [case testStrToBool]
 def is_true(x: str) -> bool:
     if x:

mypyc/test-data/run-strings.test

@@ -28,6 +28,7 @@ def remove_prefix_suffix(x: str, y: str) -> Tuple[str, str]:
 [file driver.py]
 from native import f, g, tostr, booltostr, concat, eq, match, match_tuple, remove_prefix_suffix
 import sys
+from testutil import assertRaises
 
 assert f() == 'some string'
 assert f() is sys.intern('some string')
@@ -51,6 +52,12 @@ assert match_tuple('abc', ('d', 'e')) == (False, False)
 assert match_tuple('abc', ('a', 'c')) == (True, True)
 assert match_tuple('abc', ('a',)) == (True, False)
 assert match_tuple('abc', ('c',)) == (False, True)
+assert match_tuple('abc', ('x', 'y', 'z')) == (False, False)
+assert match_tuple('abc', ('x', 'y', 'z', 'a', 'c')) == (True, True)
+with assertRaises(TypeError, "tuple for startswith must only contain str"):
+    assert match_tuple('abc', (None,))
+with assertRaises(TypeError, "tuple for endswith must only contain str"):
+    assert match_tuple('abc', ('a', None))
 
 assert remove_prefix_suffix('', '') == ('', '')
 assert remove_prefix_suffix('abc', 'a') == ('bc', 'abc')