this is the client program$($don$\text{'}$t change or you get a $0$ in this project$)/**-------------------*$ These functions are designed to help you test your MyString objects, $*$ as well as show the client usage of the class. $**$ The BasicTest function builds an array of strings using various $*$ constructor options and prints them out. It also uses the String $*$ stream operations to read some strings from a data file. $**$ The RelationTest function checks out the basic relational operations etc$)$ on Strings and char $*$s$.**$ The ConcatTest functions checks the overloaded $+$ and $+=$ operators that $*$ do string concatenation. $**$ The CopyTest tries out the copy constructor and assignment operators $*$ to make sure they do a true deep copy. $**$ Although not exhaustive, these tests will help you to exercise the basic $*$ functionality of the class and show you how a client might use it$.**$ While you are developing your MyString class, you might find it $*$ easier to comment out functions you are ready for, so that you don't $*$ get lots of compile$/$link complaints. $*/$ #include "mystring.h$"$ #include #include $//$ for toupper$()$ #include #include #include using namespace std; using namespace cs$\_$mystring; void BasicTest$()$; void RelationTest$()$; void ConcatTest$()$; void CopyTest$()$; MyString AppendTest$($const MyString& ref, MyString val$)$; string boolString$($bool convertMe$)$; int main$()\{$ BasicTest$()$; RelationTest$()$; ConcatTest$()$; CopyTest$()$; $\}$ string boolString$($bool convertMe$)\{$ if $($convertMe$)\{$ return "true"; $\}$ else $\{$ return "false"; $\}\}$ void BasicTest$()\{$ MyString s; int stringLength; cout Testing basic String creation & printing" $$ endl; const MyString strs$[]=\{$MyString$("$Wow$"),$ MyString$("$C$++$ is neat!"$),$ MyString$(""),$ MyString$("$a$-$z$")\}$; for $($int i $=0$; i $<mtext></mtext><mn>4</mn>$; i$++)\{$ cout $$ "string $["$ i strs$[$i$]$ endl; $\}$ cout $$ endl Now reading MyStrings from file" $$ endl; cout $$ endl first, word by word" $$ endl; ifstream in$("$mystring$.$txt$")$; assert$($in$)$; while $($in$.$peek$()==\text{'}$#$\text{'})\{$ in$.$ignore$(128,\text{'}$

$\text{'})$; $\}$ in $>>$ s; while $($in$)\{$ cout $$ "Read string $="$ s $$ endl; in $>>$ s; $\}$ in$.$close$()$; cout $$ endl now, line by line" $$ endl; ifstream in$2("$mystring$.$txt$")$; assert$($in$2)$; while $($in$2.$peek$()==\text{'}$#$\text{'})\{$ in$2.$ignore$(128,\text{'}$

$\text{'})$; $\}$ s$.$read$($in$2,\text{'}$

$\text{'})$; while $($in$2)\{$ cout $$ "Read string $="$ s $$ endl; s$.$read$($in$2,\text{'}$

$\text{'})$; $\}$ in$2.$close$()$; cout $$ endl Testing access to characters $($using const$)"$ endl; const MyString s$1("$abcdefghijklmnopqsrtuvwxyz$")$; cout $$ "Whole string is $"$ s$1$ endl; cout $$ "now char by char: $"$; stringLength $=$ s$1.$length$()$; for $($int i $=0$; i $$ stringLength; i$++)\{$ cout $$ s$1[$i$]$; $\}$ cout $$ endl Testing access to characters $($using non$-$const$)"$ endl; MyString s$2("$abcdefghijklmnopqsrtuvwxyz$")$; cout $$ "Start with $"$ s$2$; stringLength $=$ s$2.$length$()$; for $($int i $=0$; i $$ stringLength; i$++)\{$ s$2[$i$]=$ toupper$($s$2[$i$])$; $\}$ cout and convert to $"$ s$2$ endl; $\}$ void RelationTest$()\{$ cout

$-----$ Testing relational operators between MyStrings

$"$; const MyString strs$[]=\{$MyString$("$app$"),$ MyString$("$apple$"),$ MyString$(""),$ MyString$("$Banana$"),$ MyString$("$Banana$")\}$; for $($int i $=0$; i $<mtext></mtext><mn>4</mn>$; i$++)\{$ cout $$ "Comparing $"$ strs$[$i to $"$ strs$[$i$+1]$ endl; cout tIs left $$ right? $"$ boolString$($strs$[$i$]$ strs$[$i$+1])$ endl; cout tIs left right? $"$ boolString$($strs$[$i strs$[$i$+1])$ endl; cout tIs left $>$ right? $"$ boolString$($strs$[$i$]>$ strs$[$i$+1])$ endl; cout tIs left $>=$ right? $"$ boolString$($strs$[$i$]>=$ strs$[$i$+1])$ endl; cout tDoes left $==$ right? $"$ boolString$($strs$[$i$]==$ strs$[$i$+1])$ endl; cout tDoes left $!=$ right $?"$ boolString$($strs$[$i$]!=$ strs$[$i$+1])$ endl; $\}$ cout

$-----$ Testing relations between MyStrings and char $*$

$"$; MyString s$("$he$")$; const char $*$t $=$ "hello"; cout $$ "Comparing $"$ s to $"$ t $$ endl; cout tIs left $$ right? $"$ boolString$($s $$ t$)$ endl; cout tIs left right? $"$ boolString$($s t$)$ endl; cout tIs left $>$ right? $"$ boolString$($s $>$ t$)$ endl; cout tIs left $>=$ right? $"$ boolString$($s $>=$ t$)$ endl; cout tDoes left $==$ right? $"$ boolString$($s $==$ t$)$ endl; cout