import org.junit.jupiter.api.Test; import static org.junit.jupiter.api.Assertions.$*$; $^$ import org.junit.jupiter.api.BeforeEach; $^$ public class ExpressionTreeTest $\{$ import org.junit.jupiter.api.Test; $^//$ You can initialize your ExpressionTree objects here before each test @BeforeEach $^$ symbol: class BeforeEach location: class ExpressionTreeTest tree $=$ new ExpressionTree$("34+")$; @Test $^$ symbol: class Test location: class ExpressionTreeTest tree $=$ new ExpressionTree$("345*+")$; @Test $^$ symbol: class Test location: class ExpressionTreeTest tree $=$ new ExpressionTree$("50/")$; @Test $^$ symbol: class Test location: class ExpressionTreeTest tree $=$ new ExpressionTree$("34++")$; @Test $^$ symbol: class Test location: class ExpressionTreeTest tree $=$ new ExpressionTree$("")$; @Test $^$ symbol: class Test location: class ExpressionTreeTest tree $=$ new ExpressionTree$("34+5*")$; @Test $^$ symbol: class Test location: class ExpressionTreeTest tree $=$ new ExpressionTree$("102/3+4*")$; @Test $^$ symbol: class Test location: class ExpressionTreeTest assertEquals$(7,$ tree.evaluate$())$; assertTrue$($tree$.$parse$())$; $^$ symbol: method assertTrue$($boolean$)$ location: class ExpressionTreeTest assertEquals$("(3+4)",$ tree.infixNotation$())$; assertNotNull$($tree$.$getRoot$())$; $^$ symbol: method assertNotNull$($BinaryNode$)$ location: class ExpressionTreeTest $\}$ assertEquals$(7,$ tree.evaluate$())$; $^$ symbol: method assertEquals$($int$,$int$)$ location: class ExpressionTreeTest assertEquals$("(3+4)",$ tree.infixNotation$())$; $^$ symbol: method assertEquals$($String$,$String$)$ location: class ExpressionTreeTest assertEquals$("(3+(4*5))",$ tree.infixNotation$())$; assertTrue$($tree$.$parse$())$; $^$ symbol: method assertTrue$($boolean$)$ location: class ExpressionTreeTest $\}$ assertEquals$(23,$ tree.evaluate$())$; $//(3+(4*5))=23^$ symbol: method assertEquals$($int$,$int$)$ location: class ExpressionTreeTest assertEquals$("(3+(4*5))",$ tree.infixNotation$())$; $^$ symbol: method assertEquals$($String$,$String$)$ location: class ExpressionTreeTest assertThrows$($ArithmeticException$.$class, $()->$ tree.evaluate$())$; $^$ symbol: method assertThrows$($Class$,()->$tree.evaluate$())$ location: class ExpressionTreeTest $\}$ assertFalse$($tree$.$parse$())$; $^$ symbol: method assertFalse$($boolean$)$ location: class ExpressionTreeTest assertNull$($tree$.$getRoot$())$; $^$ symbol: method assertNull$($BinaryNode$)$ location: class ExpressionTreeTest $\}$ assertFalse$($tree$.$parse$())$; $^$ symbol: method assertFalse$($boolean$)$ location: class ExpressionTreeTest assertNull$($tree$.$getRoot$())$; $^$ symbol: method assertNull$($BinaryNode$)$ location: class ExpressionTreeTest assertEquals$("((3+4)*5)",$ tree.infixNotation$())$; assertTrue$($tree$.$parse$())$; $^$ symbol: method assertTrue$($boolean$)$ location: class ExpressionTreeTest $\}$ assertEquals$(35,$ tree.evaluate$())$; $//(3+4)*5=35^$ symbol: method assertEquals$($int$,$int$)$ location: class ExpressionTreeTest assertEquals$("((3+4)*5)",$ tree.infixNotation$())$; $^$ symbol: method assertEquals$($String$,$String$)$ location: class ExpressionTreeTest assertEquals$("(((10/2)+3)*4)",$ tree.infixNotation$())$; assertTrue$($tree$.$parse$())$; $^$ symbol: method assertTrue$($boolean$)$ location: class ExpressionTreeTest $\}$ assertEquals$(16,$ tree.evaluate$())$; $//((10/2)+3)*4=16^$ symbol: method assertEquals$($int$,$int$)$ location: class ExpressionTreeTest $\}$ assertEquals$("(((10/2)+3)*4)",$ tree.infixNotation$())$; $^$ symbol: method assertEquals$($String$,$String$)$ location: class ExpressionTreeTest $29$ errors

this is what I got, I cant add any other classes or xml files so i have to make sure everything is covered in those two classes