1 // Copyright 2017 The Abseil Authors.
2 //
3 // Licensed under the Apache License, Version 2.0 (the "License");
4 // you may not use this file except in compliance with the License.
5 // You may obtain a copy of the License at
6 //
7 // https://www.apache.org/licenses/LICENSE-2.0
8 //
9 // Unless required by applicable law or agreed to in writing, software
10 // distributed under the License is distributed on an "AS IS" BASIS,
11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 // See the License for the specific language governing permissions and
13 // limitations under the License.
14
15 #include "absl/strings/internal/str_format/output.h"
16
17 #include <sstream>
18 #include <string>
19
20 #include "gmock/gmock.h"
21 #include "gtest/gtest.h"
22
23 namespace absl {
24 ABSL_NAMESPACE_BEGIN
25 namespace {
26
TEST(InvokeFlush,String)27 TEST(InvokeFlush, String) {
28 std::string str = "ABC";
29 str_format_internal::InvokeFlush(&str, "DEF");
30 EXPECT_EQ(str, "ABCDEF");
31 }
32
TEST(InvokeFlush,Stream)33 TEST(InvokeFlush, Stream) {
34 std::stringstream str;
35 str << "ABC";
36 str_format_internal::InvokeFlush(&str, "DEF");
37 EXPECT_EQ(str.str(), "ABCDEF");
38 }
39
TEST(BufferRawSink,Limits)40 TEST(BufferRawSink, Limits) {
41 char buf[16];
42 {
43 std::fill(std::begin(buf), std::end(buf), 'x');
44 str_format_internal::BufferRawSink bufsink(buf, sizeof(buf) - 1);
45 str_format_internal::InvokeFlush(&bufsink, "Hello World237");
46 EXPECT_EQ(std::string(buf, sizeof(buf)), "Hello World237xx");
47 }
48 {
49 std::fill(std::begin(buf), std::end(buf), 'x');
50 str_format_internal::BufferRawSink bufsink(buf, sizeof(buf) - 1);
51 str_format_internal::InvokeFlush(&bufsink, "Hello World237237");
52 EXPECT_EQ(std::string(buf, sizeof(buf)), "Hello World2372x");
53 }
54 {
55 std::fill(std::begin(buf), std::end(buf), 'x');
56 str_format_internal::BufferRawSink bufsink(buf, sizeof(buf) - 1);
57 str_format_internal::InvokeFlush(&bufsink, "Hello World");
58 str_format_internal::InvokeFlush(&bufsink, "237");
59 EXPECT_EQ(std::string(buf, sizeof(buf)), "Hello World237xx");
60 }
61 {
62 std::fill(std::begin(buf), std::end(buf), 'x');
63 str_format_internal::BufferRawSink bufsink(buf, sizeof(buf) - 1);
64 str_format_internal::InvokeFlush(&bufsink, "Hello World");
65 str_format_internal::InvokeFlush(&bufsink, "237237");
66 EXPECT_EQ(std::string(buf, sizeof(buf)), "Hello World2372x");
67 }
68 }
69
70 } // namespace
71 ABSL_NAMESPACE_END
72 } // namespace absl
73
74