Export of internal Abseil changes.

--
788c948f698afe5998738cbb40b0629668640d73 by Derek Mauro <dmauro@google.com>:

Add an empty raw_logging_internal library. The raw_logging sources
will eventually migrate here.

This target will only contain internal sources. Abseil compatibility
guidelines require users not depend on internals.
https://abseil.io/about/compatibility

PiperOrigin-RevId: 260712817

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8ea947ec54f47fb02e97597d243cb63aa4c5fe0b by Abseil Team <absl-team@google.com>:

Fixed an incorrect version number test for optional,etc. availability
in iOS. Added tests for watchOS and tvOS.

PiperOrigin-RevId: 260490390

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53af0544277dc3020b81d16ce110e7bc89f5cf6e by Jorg Brown <jorg@google.com>:

Test the error-string path a bit more.

PiperOrigin-RevId: 260175886
GitOrigin-RevId: 788c948f698afe5998738cbb40b0629668640d73
Change-Id: I366b73331857dc5a1db843b650c2ba27a69a141e

1 files changed, 10 insertions, 1 deletions

diff --git a/absl/strings/escaping_test.cc b/absl/strings/escaping_test.cc
index 6a633cdc..1967975b 100644
--- a/absl/strings/escaping_test.cc
+++ b/absl/strings/escaping_test.cc
@@ -72,6 +72,11 @@ TEST(CEscape, EscapeAndUnescape) {
       EXPECT_TRUE(absl::CUnescape(escaped, &unescaped_str));
       EXPECT_EQ(unescaped_str, original);
 
+      unescaped_str.erase();
+      std::string error;
+      EXPECT_TRUE(absl::CUnescape(escaped, &unescaped_str, &error));
+      EXPECT_EQ(error, "");
+
       // Check in-place unescaping
       std::string s = escaped;
       EXPECT_TRUE(absl::CUnescape(s, &s));
@@ -150,7 +155,8 @@ TEST(CEscape, BasicEscaping) {
 
 TEST(Unescape, BasicFunction) {
   epair tests[] =
-    {{"\\u0030", "0"},
+    {{"", ""},
+     {"\\u0030", "0"},
      {"\\u00A3", "\xC2\xA3"},
      {"\\u22FD", "\xE2\x8B\xBD"},
      {"\\U00010000", "\xF0\x90\x80\x80"},
@@ -173,6 +179,9 @@ TEST(Unescape, BasicFunction) {
     std::string out;
     EXPECT_FALSE(absl::CUnescape(e, &out, &error));
     EXPECT_FALSE(error.empty());
+
+    out.erase();
+    EXPECT_FALSE(absl::CUnescape(e, &out));
   }
 }