109 lines
3.8 KiB
C++
Executable file
109 lines
3.8 KiB
C++
Executable file
// Copyright 2005, Google Inc.
|
|
// All rights reserved.
|
|
//
|
|
// Redistribution and use in source and binary forms, with or without
|
|
// modification, are permitted provided that the following conditions are
|
|
// met:
|
|
//
|
|
// * Redistributions of source code must retain the above copyright
|
|
// notice, this list of conditions and the following disclaimer.
|
|
// * Redistributions in binary form must reproduce the above
|
|
// copyright notice, this list of conditions and the following disclaimer
|
|
// in the documentation and/or other materials provided with the
|
|
// distribution.
|
|
// * Neither the name of Google Inc. nor the names of its
|
|
// contributors may be used to endorse or promote products derived from
|
|
// this software without specific prior written permission.
|
|
//
|
|
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
|
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
|
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
|
|
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
|
|
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
|
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
|
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
|
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
|
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
|
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
|
|
// A sample program demonstrating using Google C++ testing framework.
|
|
//
|
|
// Author: wan@google.com (Zhanyong Wan)
|
|
|
|
|
|
// This sample shows how to write a more complex unit test for a class
|
|
// that has multiple member functions.
|
|
//
|
|
// Usually, it's a good idea to have one test for each method in your
|
|
// class. You don't have to do that exactly, but it helps to keep
|
|
// your tests organized. You may also throw in additional tests as
|
|
// needed.
|
|
|
|
#include "sample2.h"
|
|
#include "gtest/gtest.h"
|
|
|
|
// In this example, we test the MyString class (a simple string).
|
|
|
|
// Tests the default c'tor.
|
|
TEST(MyString, DefaultConstructor) {
|
|
const MyString s;
|
|
|
|
// Asserts that s.c_string() returns NULL.
|
|
//
|
|
// <TechnicalDetails>
|
|
//
|
|
// If we write NULL instead of
|
|
//
|
|
// static_cast<const char *>(NULL)
|
|
//
|
|
// in this assertion, it will generate a warning on gcc 3.4. The
|
|
// reason is that EXPECT_EQ needs to know the types of its
|
|
// arguments in order to print them when it fails. Since NULL is
|
|
// #defined as 0, the compiler will use the formatter function for
|
|
// int to print it. However, gcc thinks that NULL should be used as
|
|
// a pointer, not an int, and therefore complains.
|
|
//
|
|
// The root of the problem is C++'s lack of distinction between the
|
|
// integer number 0 and the null pointer constant. Unfortunately,
|
|
// we have to live with this fact.
|
|
//
|
|
// </TechnicalDetails>
|
|
EXPECT_STREQ(NULL, s.c_string());
|
|
|
|
EXPECT_EQ(0u, s.Length());
|
|
}
|
|
|
|
const char kHelloString[] = "Hello, world!";
|
|
|
|
// Tests the c'tor that accepts a C string.
|
|
TEST(MyString, ConstructorFromCString) {
|
|
const MyString s(kHelloString);
|
|
EXPECT_TRUE(strcmp(s.c_string(), kHelloString) == 0);
|
|
EXPECT_EQ(sizeof(kHelloString)/sizeof(kHelloString[0]) - 1,
|
|
s.Length());
|
|
}
|
|
|
|
// Tests the copy c'tor.
|
|
TEST(MyString, CopyConstructor) {
|
|
const MyString s1(kHelloString);
|
|
const MyString s2 = s1;
|
|
EXPECT_TRUE(strcmp(s2.c_string(), kHelloString) == 0);
|
|
}
|
|
|
|
// Tests the Set method.
|
|
TEST(MyString, Set) {
|
|
MyString s;
|
|
|
|
s.Set(kHelloString);
|
|
EXPECT_TRUE(strcmp(s.c_string(), kHelloString) == 0);
|
|
|
|
// Set should work when the input pointer is the same as the one
|
|
// already in the MyString object.
|
|
s.Set(s.c_string());
|
|
EXPECT_TRUE(strcmp(s.c_string(), kHelloString) == 0);
|
|
|
|
// Can we set the MyString to NULL?
|
|
s.Set(NULL);
|
|
EXPECT_STREQ(NULL, s.c_string());
|
|
}
|