sample2_unittest.cc File Reference

#include "sample2.h"
#include "gtest/gtest.h"

Go to the source code of this file.

Functions
	TEST (MyString, DefaultConstructor)
	TEST (MyString, ConstructorFromCString)
	TEST (MyString, CopyConstructor)
	TEST (MyString, Set)

Variables
const char	kHelloString [] = "Hello, world!"

Function Documentation

TEST	(	MyString	,
		DefaultConstructor
	)

Definition at line 49 of file sample2_unittest.cc.

References MyString::c_string(), EXPECT_EQ, EXPECT_STREQ, MyString::Length(), and s.

                                   {
  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());
}

TEST	(	MyString	,
		ConstructorFromCString
	)

Definition at line 80 of file sample2_unittest.cc.

References MyString::c_string(), EXPECT_EQ, kHelloString, MyString::Length(), and s.

                                       {
  const MyString s(kHelloString);
  EXPECT_EQ(0, strcmp(s.c_string(), kHelloString));
  EXPECT_EQ(sizeof(kHelloString)/sizeof(kHelloString[0]) - 1,
            s.Length());
}

TEST	(	MyString	,
		CopyConstructor
	)

Definition at line 88 of file sample2_unittest.cc.

References MyString::c_string(), EXPECT_EQ, and kHelloString.

                                {
  const MyString s1(kHelloString);
  const MyString s2 = s1;
  EXPECT_EQ(0, strcmp(s2.c_string(), kHelloString));
}

TEST	(	MyString	,
		Set
	)

Definition at line 95 of file sample2_unittest.cc.

References MyString::c_string(), EXPECT_EQ, EXPECT_STREQ, kHelloString, s, and MyString::Set().

                    {
  MyString s;

  s.Set(kHelloString);
  EXPECT_EQ(0, strcmp(s.c_string(), kHelloString));

  // Set should work when the input pointer is the same as the one
  // already in the MyString object.
  s.Set(s.c_string());
  EXPECT_EQ(0, strcmp(s.c_string(), kHelloString));

  // Can we set the MyString to NULL?
  s.Set(NULL);
  EXPECT_STREQ(NULL, s.c_string());
}

Variable Documentation

const char kHelloString[] = "Hello, world!"

Definition at line 77 of file sample2_unittest.cc.