Factor out StringAppendF into spdy/platform/.

net/spdy/platform/api/spdy_string_utils_test.cc

 // Copyright 2017 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "net/spdy/platform/api/spdy_string_utils.h"
 
 #include <cstdint>
 
 #include "net/spdy/platform/api/spdy_string_piece.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace net {
 namespace test {
 namespace {
 
-TEST(SpdyStrUtilsTest, StrCat) {
+TEST(SpdyStrUtilsTest, SpdyStrCat) {
   // No arguments.
   EXPECT_EQ("", SpdyStrCat());
 
   // Single string-like argument.
   const char kFoo[] = "foo";
   const std::string string_foo(kFoo);
   const SpdyStringPiece stringpiece_foo(string_foo);
   EXPECT_EQ("foo", SpdyStrCat(kFoo));
   EXPECT_EQ("foo", SpdyStrCat(string_foo));
   EXPECT_EQ("foo", SpdyStrCat(stringpiece_foo));
@@ skipping 36 matching lines @@
   EXPECT_EQ("0", SpdyStrCat(f));
   EXPECT_EQ("0110", SpdyStrCat(f, t, t, f));
 
   // Mixed string-like, numerical, and Boolean arguments.
   EXPECT_EQ("foo1foo081bar3.14151",
             SpdyStrCat(kFoo, i, string_foo, f, u, t, stringpiece_bar, d, t));
   EXPECT_EQ("3.141511bar18bar13.14150",
             SpdyStrCat(d, t, t, string_bar, i, u, kBar, t, d, f));
 }
 
-TEST(SpdyStrUtilsTest, StrAppend) {
+TEST(SpdyStrUtilsTest, SpdyStrAppend) {
   // No arguments on empty string.
   std::string output;
   SpdyStrAppend(&output);
   EXPECT_TRUE(output.empty());
 
   // Single string-like argument.
   const char kFoo[] = "foo";
   const std::string string_foo(kFoo);
   const SpdyStringPiece stringpiece_foo(string_foo);
   SpdyStrAppend(&output, kFoo);
@@ skipping 74 matching lines @@
 
   output.clear();
 
   // Mixed string-like, numerical, and Boolean arguments.
   SpdyStrAppend(&output, kFoo, i, string_foo, f, u, t, stringpiece_bar, d, t);
   EXPECT_EQ("foo1foo081bar3.14151", output);
   SpdyStrAppend(&output, d, t, t, string_bar, i, u, kBar, t, d, f);
   EXPECT_EQ("foo1foo081bar3.141513.141511bar18bar13.14150", output);
 }
 
-TEST(SpdyStrUtilsTest, StringPrintf) {
+TEST(SpdyStrUtilsTest, SpdyStringPrintf) {
   EXPECT_EQ("", SpdyStringPrintf("%s", ""));
   EXPECT_EQ("foobar", SpdyStringPrintf("%sbar", "foo"));
   EXPECT_EQ("foobar", SpdyStringPrintf("%s%s", "foo", "bar"));
   EXPECT_EQ("foo: 1, bar: 2.0", SpdyStringPrintf("foo: %d, bar: %.1f", 1, 2.0));
 }
 
+TEST(SpdyStrUtilsTest, SpdyStringAppendF) {
+  std::string output;
+
+  SpdyStringAppendF(&output, "%s", "");
+  EXPECT_TRUE(output.empty());
+
+  SpdyStringAppendF(&output, "%sbar", "foo");
+  EXPECT_EQ("foobar", output);
+
+  SpdyStringAppendF(&output, "%s%s", "foo", "bar");
+  EXPECT_EQ("foobarfoobar", output);
+
+  SpdyStringAppendF(&output, "foo: %d, bar: %.1f", 1, 2.0);
+  EXPECT_EQ("foobarfoobarfoo: 1, bar: 2.0", output);
+}
+
 }  // namespace
 }  // namespace test
 }  // namespace net