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-rw-r--r--absl/strings/string_view_test.cc47
1 files changed, 28 insertions, 19 deletions
diff --git a/absl/strings/string_view_test.cc b/absl/strings/string_view_test.cc
index 7b1d56fa..dcebb150 100644
--- a/absl/strings/string_view_test.cc
+++ b/absl/strings/string_view_test.cc
@@ -28,6 +28,7 @@
#include "gtest/gtest.h"
#include "absl/base/config.h"
#include "absl/base/dynamic_annotations.h"
+#include "absl/base/options.h"
#if defined(ABSL_HAVE_STD_STRING_VIEW) || defined(__ANDROID__)
// We don't control the death messaging when using std::string_view.
@@ -410,7 +411,7 @@ TEST(StringViewTest, STL2) {
EXPECT_EQ(a.find(e, 17), 17);
absl::string_view g("xx not found bb");
EXPECT_EQ(a.find(g), absl::string_view::npos);
- // empty std::string nonsense
+ // empty string nonsense
EXPECT_EQ(d.find(b), absl::string_view::npos);
EXPECT_EQ(e.find(b), absl::string_view::npos);
EXPECT_EQ(d.find(b, 4), absl::string_view::npos);
@@ -438,7 +439,7 @@ TEST(StringViewTest, STL2) {
EXPECT_EQ(g.find('o', 4), 4);
EXPECT_EQ(g.find('o', 5), 8);
EXPECT_EQ(a.find('b', 5), absl::string_view::npos);
- // empty std::string nonsense
+ // empty string nonsense
EXPECT_EQ(d.find('\0'), absl::string_view::npos);
EXPECT_EQ(e.find('\0'), absl::string_view::npos);
EXPECT_EQ(d.find('\0', 4), absl::string_view::npos);
@@ -465,7 +466,7 @@ TEST(StringViewTest, STL2) {
EXPECT_EQ(e.rfind(b), absl::string_view::npos);
EXPECT_EQ(d.rfind(b, 4), absl::string_view::npos);
EXPECT_EQ(e.rfind(b, 7), absl::string_view::npos);
- // empty std::string nonsense
+ // empty string nonsense
EXPECT_EQ(d.rfind(d, 4), std::string().rfind(std::string()));
EXPECT_EQ(e.rfind(d, 7), std::string().rfind(std::string()));
EXPECT_EQ(d.rfind(e, 4), std::string().rfind(std::string()));
@@ -484,7 +485,7 @@ TEST(StringViewTest, STL2) {
EXPECT_EQ(f.rfind('\0', 12), 3);
EXPECT_EQ(f.rfind('3'), 2);
EXPECT_EQ(f.rfind('5'), 5);
- // empty std::string nonsense
+ // empty string nonsense
EXPECT_EQ(d.rfind('o'), absl::string_view::npos);
EXPECT_EQ(e.rfind('o'), absl::string_view::npos);
EXPECT_EQ(d.rfind('o', 4), absl::string_view::npos);
@@ -520,7 +521,7 @@ TEST(StringViewTest, STL2FindFirst) {
EXPECT_EQ(g.find_first_of(c), 0);
EXPECT_EQ(a.find_first_of(f), absl::string_view::npos);
EXPECT_EQ(f.find_first_of(a), absl::string_view::npos);
- // empty std::string nonsense
+ // empty string nonsense
EXPECT_EQ(a.find_first_of(d), absl::string_view::npos);
EXPECT_EQ(a.find_first_of(e), absl::string_view::npos);
EXPECT_EQ(d.find_first_of(b), absl::string_view::npos);
@@ -538,7 +539,7 @@ TEST(StringViewTest, STL2FindFirst) {
EXPECT_EQ(a.find_first_not_of(f), 0);
EXPECT_EQ(a.find_first_not_of(d), 0);
EXPECT_EQ(a.find_first_not_of(e), 0);
- // empty std::string nonsense
+ // empty string nonsense
EXPECT_EQ(a.find_first_not_of(d), 0);
EXPECT_EQ(a.find_first_not_of(e), 0);
EXPECT_EQ(a.find_first_not_of(d, 1), 1);
@@ -566,7 +567,7 @@ TEST(StringViewTest, STL2FindFirst) {
EXPECT_EQ(f.find_first_not_of('\0'), 0);
EXPECT_EQ(f.find_first_not_of('\0', 3), 4);
EXPECT_EQ(f.find_first_not_of('\0', 2), 2);
- // empty std::string nonsense
+ // empty string nonsense
EXPECT_EQ(d.find_first_not_of('x'), absl::string_view::npos);
EXPECT_EQ(e.find_first_not_of('x'), absl::string_view::npos);
EXPECT_EQ(d.find_first_not_of('\0'), absl::string_view::npos);
@@ -606,7 +607,7 @@ TEST(StringViewTest, STL2FindLast) {
EXPECT_EQ(f.find_last_of(i, 5), 5);
EXPECT_EQ(f.find_last_of(i, 6), 6);
EXPECT_EQ(f.find_last_of(a, 4), absl::string_view::npos);
- // empty std::string nonsense
+ // empty string nonsense
EXPECT_EQ(f.find_last_of(d), absl::string_view::npos);
EXPECT_EQ(f.find_last_of(e), absl::string_view::npos);
EXPECT_EQ(f.find_last_of(d, 4), absl::string_view::npos);
@@ -632,7 +633,7 @@ TEST(StringViewTest, STL2FindLast) {
EXPECT_EQ(a.find_last_not_of(c, 24), 22);
EXPECT_EQ(a.find_last_not_of(b, 3), 3);
EXPECT_EQ(a.find_last_not_of(b, 2), absl::string_view::npos);
- // empty std::string nonsense
+ // empty string nonsense
EXPECT_EQ(f.find_last_not_of(d), f.size()-1);
EXPECT_EQ(f.find_last_not_of(e), f.size()-1);
EXPECT_EQ(f.find_last_not_of(d, 4), 4);
@@ -656,7 +657,7 @@ TEST(StringViewTest, STL2FindLast) {
EXPECT_EQ(h.find_last_not_of('x', 2), 2);
EXPECT_EQ(h.find_last_not_of('=', 2), absl::string_view::npos);
EXPECT_EQ(b.find_last_not_of('b', 1), 0);
- // empty std::string nonsense
+ // empty string nonsense
EXPECT_EQ(d.find_last_not_of('x'), absl::string_view::npos);
EXPECT_EQ(e.find_last_not_of('x'), absl::string_view::npos);
EXPECT_EQ(d.find_last_not_of('\0'), absl::string_view::npos);
@@ -678,7 +679,7 @@ TEST(StringViewTest, STL2Substr) {
EXPECT_EQ(a.substr(23, 99), c);
EXPECT_EQ(a.substr(0), a);
EXPECT_EQ(a.substr(3, 2), "de");
- // empty std::string nonsense
+ // empty string nonsense
EXPECT_EQ(d.substr(0, 99), e);
// use of npos
EXPECT_EQ(a.substr(0, absl::string_view::npos), a);
@@ -820,7 +821,7 @@ TEST(StringViewTest, FrontBackSingleChar) {
TEST(StringViewTest, FrontBackEmpty) {
#ifndef ABSL_USES_STD_STRING_VIEW
-#ifndef NDEBUG
+#if !defined(NDEBUG) || ABSL_OPTION_HARDENED
// Abseil's string_view implementation has debug assertions that check that
// front() and back() are not called on an empty string_view.
absl::string_view sv;
@@ -859,7 +860,7 @@ TEST(StringViewTest, NULLInput) {
EXPECT_EQ(s.size(), 0);
// .ToString() on a absl::string_view with nullptr should produce the empty
- // std::string.
+ // string.
EXPECT_EQ("", std::string(s));
#endif // ABSL_HAVE_STRING_VIEW_FROM_NULLPTR
}
@@ -977,7 +978,7 @@ TEST(StringViewTest, ConstexprCompiles) {
#if defined(ABSL_USES_STD_STRING_VIEW)
// In libstdc++ (as of 7.2), `std::string_view::string_view(const char*)`
- // calls `std::char_traits<char>::length(const char*)` to get the std::string
+ // calls `std::char_traits<char>::length(const char*)` to get the string
// length, but it is not marked constexpr yet. See GCC bug:
// https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78156
// Also, there is a LWG issue that adds constexpr to length() which was just
@@ -1086,6 +1087,14 @@ TEST(StringViewTest, ConstexprCompiles) {
EXPECT_EQ(sp_npos, -1);
}
+TEST(StringViewTest, ConstexprSubstr) {
+ constexpr absl::string_view foobar("foobar", 6);
+ constexpr absl::string_view foo = foobar.substr(0, 3);
+ constexpr absl::string_view bar = foobar.substr(3);
+ EXPECT_EQ(foo, "foo");
+ EXPECT_EQ(bar, "bar");
+}
+
TEST(StringViewTest, Noexcept) {
EXPECT_TRUE((std::is_nothrow_constructible<absl::string_view,
const std::string&>::value));
@@ -1122,7 +1131,7 @@ TEST(StringViewTest, Noexcept) {
TEST(StringViewTest, BoundsCheck) {
#ifndef ABSL_USES_STD_STRING_VIEW
-#ifndef NDEBUG
+#if !defined(NDEBUG) || ABSL_OPTION_HARDENED
// Abseil's string_view implementation has bounds-checking in debug mode.
absl::string_view h = "hello";
ABSL_EXPECT_DEATH_IF_SUPPORTED(h[5], "");
@@ -1168,11 +1177,11 @@ TEST(FindOneCharTest, EdgeCases) {
EXPECT_EQ(absl::string_view::npos, a.rfind('x'));
}
-#ifndef THREAD_SANITIZER // Allocates too much memory for tsan.
+#ifndef ABSL_HAVE_THREAD_SANITIZER // Allocates too much memory for tsan.
TEST(HugeStringView, TwoPointTwoGB) {
- if (sizeof(size_t) <= 4 || RunningOnValgrind())
+ if (sizeof(size_t) <= 4)
return;
- // Try a huge std::string piece.
+ // Try a huge string piece.
const size_t size = size_t{2200} * 1000 * 1000;
std::string s(size, 'a');
absl::string_view sp(s);
@@ -1182,7 +1191,7 @@ TEST(HugeStringView, TwoPointTwoGB) {
sp.remove_suffix(2);
EXPECT_EQ(size - 1 - 2, sp.length());
}
-#endif // THREAD_SANITIZER
+#endif // ABSL_HAVE_THREAD_SANITIZER
#if !defined(NDEBUG) && !defined(ABSL_USES_STD_STRING_VIEW)
TEST(NonNegativeLenTest, NonNegativeLen) {
generated by cgit v1.2.3 (git 2.39.1) at 2024-05-04 08:43:07 +0000