[libcxx] r289283 - [libcxx] [test] Fix string_view tests.

[Stephan T. Lavavej via cfe-commits]

Author: stl_msft
Date: Fri Dec  9 16:35:53 2016
New Revision: 289283

URL: http://llvm.org/viewvc/llvm-project?rev=289283&view=rev
Log:
[libcxx] [test] Fix string_view tests.

test/std/strings/string.view/string.view.ops/compare.pointer_size.pass.cpp
Passing -1 to size_t triggers signed/unsigned mismatch warnings because it's
a value-modifying conversion. Add static_cast<size_t> to soothe the compiler.
(This file refers to size_t unqualified.)

test/std/strings/string.view/string.view.ops/substr.pass.cpp
Add <algorithm> for std::min() and <stdexcept> for std::out_of_range.

N4618 21.4.2.4 [string.view.access]/1: "Requires: pos < size()."
/4: "[ Note: Unlike basic_string::operator[], basic_string_view::operator[](size())
has undefined behavior instead of returning charT(). -end note ]"

Fixes D27633.

Modified:
    libcxx/trunk/test/std/strings/string.view/string.view.ops/compare.pointer_size.pass.cpp
    libcxx/trunk/test/std/strings/string.view/string.view.ops/substr.pass.cpp

Modified: libcxx/trunk/test/std/strings/string.view/string.view.ops/compare.pointer_size.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/strings/string.view/string.view.ops/compare.pointer_size.pass.cpp?rev=289283&r1=289282&r2=289283&view=diff
==============================================================================
--- libcxx/trunk/test/std/strings/string.view/string.view.ops/compare.pointer_size.pass.cpp (original)
+++ libcxx/trunk/test/std/strings/string.view/string.view.ops/compare.pointer_size.pass.cpp Fri Dec  9 16:35:53 2016
@@ -376,7 +376,7 @@ int main()
     test("abcdefghijklmnopqrst", 5, 5, "", 20);
     test("abcdefghijklmnopqrst", 0, 8, "abcde", 15);
     test("abcdefghijklmnopqrst", 0, 12, "abcdefghij", 10);
-    test("abcdefghijklmnopqrst", 0, -1, "abcdefghijklmnopqrst", 0);
+    test("abcdefghijklmnopqrst", 0, static_cast<size_t>(-1), "abcdefghijklmnopqrst", 0);
     }
 
     {
@@ -395,7 +395,7 @@ int main()
     test(L"abcdefghijklmnopqrst", 5, 5, L"", 20);
     test(L"abcdefghijklmnopqrst", 0, 8, L"abcde", 15);
     test(L"abcdefghijklmnopqrst", 0, 12, L"abcdefghij", 10);
-    test(L"abcdefghijklmnopqrst", 0, -1, L"abcdefghijklmnopqrst", 0);
+    test(L"abcdefghijklmnopqrst", 0, static_cast<size_t>(-1), L"abcdefghijklmnopqrst", 0);
     }
 
 #if TEST_STD_VER >= 11
@@ -415,7 +415,7 @@ int main()
     test(U"abcdefghijklmnopqrst", 5, 5, U"", 20);
     test(U"abcdefghijklmnopqrst", 0, 8, U"abcde", 15);
     test(U"abcdefghijklmnopqrst", 0, 12, U"abcdefghij", 10);
-    test(U"abcdefghijklmnopqrst", 0, -1, U"abcdefghijklmnopqrst", 0);
+    test(U"abcdefghijklmnopqrst", 0, static_cast<size_t>(-1), U"abcdefghijklmnopqrst", 0);
     }
 
     {
@@ -434,7 +434,7 @@ int main()
     test(u"abcdefghijklmnopqrst", 5, 5, u"", 20);
     test(u"abcdefghijklmnopqrst", 0, 8, u"abcde", 15);
     test(u"abcdefghijklmnopqrst", 0, 12, u"abcdefghij", 10);
-    test(u"abcdefghijklmnopqrst", 0, -1, u"abcdefghijklmnopqrst", 0);
+    test(u"abcdefghijklmnopqrst", 0, static_cast<size_t>(-1), u"abcdefghijklmnopqrst", 0);
     }
 #endif
 

Modified: libcxx/trunk/test/std/strings/string.view/string.view.ops/substr.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/strings/string.view/string.view.ops/substr.pass.cpp?rev=289283&r1=289282&r2=289283&view=diff
==============================================================================
--- libcxx/trunk/test/std/strings/string.view/string.view.ops/substr.pass.cpp (original)
+++ libcxx/trunk/test/std/strings/string.view/string.view.ops/substr.pass.cpp Fri Dec  9 16:35:53 2016
@@ -16,6 +16,8 @@
 // Returns: basic_string_view(data()+pos, rlen).
 
 #include <string_view>
+#include <algorithm>
+#include <stdexcept>
 #include <cassert>
 
 #include "test_macros.h"
@@ -39,7 +41,7 @@ void test1(std::basic_string_view<CharT>
 #endif
     const size_t rlen = std::min(n, sv.size() - pos);
     assert (sv1.size() == rlen);
-    for (size_t i = 0; i <= rlen; ++i)
+    for (size_t i = 0; i < rlen; ++i)
         assert(sv[pos+i] == sv1[i]);
 }