import static org.junit.jupiter.api.Assertions.$*$;

import org.junit.jupiter.api.Test;

class StudentTest $\{$

private final String ALICE $=$ "Alice";

private final String BOB $=$ "Bob";

private final String CAROL $=$ "Carol";

private final double GRADES$[]=\{100\mathrm{.}0,89\mathrm{.}0,90\mathrm{.}0,75\mathrm{.}0,65\mathrm{.}0,50\mathrm{.}0\}$;

private final char LETTERS$[]=\{\text{'}$A$\text{'},\text{'}$B$\text{'},\text{'}$A$\text{'},\text{'}$C$\text{'},\text{'}$D$\text{'},\text{'}$X$\text{'}\}$;

private final double AVERAGE $=(100\mathrm{.}0+89\mathrm{.}0+90\mathrm{.}0+75\mathrm{.}0+65\mathrm{.}0+50\mathrm{.}0)/6\mathrm{.}0$;

private final char LETTER $=\text{'}$C$\text{'}$;

@Test

void testSetName$()\{$

Student stu $=$ new Student$($ALICE$,0)$;

stu.setName$($BOB$)$;

assertEquals$($BOB$,$ stu.getName$())$;

stu.setName$($CAROL$)$;

assertEquals$($CAROL$,$ stu.getName$())$;

$\}$

@Test

void testGetName$()\{$

Student alice $=$ new Student$($ALICE$,0)$;

assertEquals$($ALICE$,$ alice.getName$())$;

Student bob $=$ new Student$($BOB$,0)$;

assertEquals$($BOB$,$ bob.getName$())$;

Student carol $=$ new Student$($CAROL$,0)$;

assertEquals$($CAROL$,$ carol.getName$())$;

$\}$

@Test

void testSetGrade$()\{$

Student stu $=$ new Student$($ALICE$,$ GRADES.length$)$;

for $($int i $=0$; i $<$ GRADES.length; i$++)\{$

stu.setGrade$($i$,$ GRADES$[$i$])$;

assertEquals$($GRADES$[$i$],$ stu.getGrade$($i$))$;

$\}$

$\}$

@Test

void testGetGradeInt$()\{$

Student stu $=$ new Student$($ALICE$,$ GRADES.length$)$;

for $($double g : GRADES$)\{$

stu.setGrade$(0,$ g$)$;

assertEquals$($g$,$ stu.getGrade$(0))$;

$\}$

$\}$

@Test

void testGetLetterGradeInt$()\{$

Student stu $=$ new Student$($ALICE$,$ GRADES.length$)$;

for $($int i $=0$; i $<$ GRADES.length; i$++)\{$

stu.setGrade$($i$,$ GRADES$[$i$])$;

assertEquals$($LETTERS$[$i$],$ stu.getLetterGrade$($i$))$;

$\}$

$\}$

@Test

void testGetGrade$()\{$

Student stu $=$ new Student$($ALICE$,$ GRADES.length$)$;

for $($int i $=0$; i $<$ GRADES.length; i$++)\{$

stu.setGrade$($i$,$ GRADES$[$i$])$;

$\}$

assertEquals$($AVERAGE$,$ stu.getGrade$())$;

$\}$

@Test

void testGetLetterGrade$()\{$

Student stu $=$ new Student$($ALICE$,$ GRADES.length$)$;

for $($int i $=0$; i $<$ GRADES.length; i$++)\{$

stu.setGrade$($i$,$ GRADES$[$i$])$;

$\}$

assertEquals$($LETTER$,$ stu.getLetterGrade$())$;

$\}$

$\}$

public class Student $\{$

public Student$($String name, int assignments$)\{$

$\}$

public void setName$($String name$)\{$

$\}$

public String getName$()\{$

return $""$;

$\}$

public void setGrade$($int assignment, double grade$)\{$

$\}$

public double getGrade$($int assignment$)\{$

return $0\mathrm{.}0$;

$\}$

public char getLetterGrade$($int assignment$)\{$

return $\text{'}$x$\text{'}$;

$\}$

public double getGrade$()\{$

return $0\mathrm{.}0$;

$\}$

public char getLetterGrade$()\{$

return $\text{'}$x$\text{'}$;

$\}$

$\}$