public void SubstringConstructor()
{
AString astr= new AString();
AString res= new AString();
constructorTest( "a" , res, false ); UT_EQ( "a", res );
constructorTest( " a" , res, false ); UT_EQ( " a", res );
constructorTest( "a " , res, false ); UT_EQ( "a ", res );
constructorTest( "a b" , res, false ); UT_EQ( "a b", res );
constructorTest( " a b" , res, false ); UT_EQ( " a b", res );
constructorTest( "a b " , res, false ); UT_EQ( "a b ", res );
constructorTest( "a" , res, true ); UT_EQ( "a", res );
constructorTest( " a" , res, true ); UT_EQ( "a", res );
constructorTest( "a " , res, true ); UT_EQ( "a", res );
constructorTest( "a b" , res, true ); UT_EQ( "a b", res );
constructorTest( " a b" , res, true ); UT_EQ( "a b", res );
constructorTest( "a b " , res, true ); UT_EQ( "a b", res );
// changing whitespaces
{
{
astr.Clear()._( "xy xz abc xy" );
Substring subs= new Substring();
subs.Set(astr).Trim("xy ".ToCharArray()).CopyTo( res );
UT_EQ( "z abc", res );
}
{
Substring subs= new Substring( "xy xz abc xy" );
subs.TrimStart("xy ".ToCharArray());
subs.TrimEnd("xy ".ToCharArray());
subs.CopyTo( res );
UT_EQ( "z abc", res );
}
}
// test other constructors
{
astr.Clear()._( " astring ");
UT_TRUE ( (new Substring()).IsEmpty() );
UT_TRUE ( (new Substring()).IsNull() );
UT_EQ( "astring", (new Substring( astr)).Trim() .ToString() );
UT_EQ( "str", (new Substring( astr, 2, 3 )).ToString() );
UT_EQ( "", (new Substring( astr, 20, 3 )).ToString() );
UT_TRUE ( (new Substring( astr, 20, 3 )).IsEmpty() );
UT_FALSE( (new Substring( astr, 20, 3 )).IsNull() );
Substring s2= new Substring( astr);
UT_EQ( "astring", new Substring( s2.Trim().ToString() ).ToString() );
UT_EQ( "str", (new Substring( (new Substring( astr, 2,3 )))).ToString() );
}
}