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Merged
mads-risager merged 2 commits into from
May 17, 2023
Merged

Mult div mod tests #87

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d7ac801
Added tests for all cases of MultDivMod visitor
EmilML May 16, 2023
0311bcc
Merge branch 'unit-tests' into multDivModTests
EmilML May 17, 2023
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46 changes: 43 additions & 3 deletions src/test/interpreter/VisitorUnitTest.java
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Original file line number Diff line number Diff line change
Expand Up @@ -4,8 +4,6 @@
import interpreter.types.*;
import interpreter.utils.MockTerminalNode;
import interpreter.utils.MockToken;
import org.antlr.v4.runtime.Token;
import org.jetbrains.annotations.NotNull;
import org.junit.jupiter.api.Assertions;
import org.junit.jupiter.api.Test;
import org.junit.jupiter.api.extension.ExtendWith;
Expand All @@ -18,7 +16,6 @@
import org.mockito.Spy;
import org.mockito.junit.jupiter.MockitoExtension;

import java.util.Objects;
import java.util.concurrent.atomic.AtomicReference;

@ExtendWith(MockitoExtension.class)
Expand All @@ -40,6 +37,8 @@ class VisitorUnitTest {
@Mock private MineScriptParser.NotExprContext mockNotExprContext;
@Mock private MineScriptParser.AndContext mockAndContext;
@Mock private MineScriptParser.AddSubContext mockAddSubContext;
@Mock private MineScriptParser.MultDivModContext mockMultDivModContext;

@ParameterizedTest
@ValueSource(ints = {-1000, -10, 0, 10, 1000})
void visitAssignStoresCorrectNumber(int value) {
Expand Down Expand Up @@ -303,4 +302,45 @@ void visitAddSubValidInputReturnsNumber(int value1, int value2, String operator)
Assertions.assertEquals(value1 - value2, ((MSNumber) result).getValue());
}
}

@ParameterizedTest
@CsvSource ({"2,2,*", "2,2,/", "2,2,%"})
void visitMultDivModValidInputReturnsNumber(int left, int right, String operator) {
mockMultDivModContext.op = new MockToken(operator);
Mockito.when(mockMultDivModContext.expression(0)).thenReturn(mockExpressionContext1);
Mockito.when(mockMultDivModContext.expression(1)).thenReturn(mockExpressionContext2);
Mockito.when(spyVisitor.visit(mockExpressionContext1)).thenReturn(new MSNumber(left));
Mockito.when(spyVisitor.visit(mockExpressionContext2)).thenReturn(new MSNumber(right));

MSType result = spyVisitor.visitMultDivMod(mockMultDivModContext);
switch (operator) {
case "*" -> Assertions.assertEquals(left * right, ((MSNumber) result).getValue());
case "/" -> Assertions.assertEquals(left / right, ((MSNumber) result).getValue());
case "%" -> Assertions.assertEquals(left % right, ((MSNumber) result).getValue());
}
}

@ParameterizedTest
@CsvSource ({"2,0,/", "2,0,%"})
void visitMultDivModDivByZeroThrowsRuntimeException(int left, int right, String operator) {
mockMultDivModContext.op = new MockToken(operator);
Mockito.when(mockMultDivModContext.expression(0)).thenReturn(mockExpressionContext1);
Mockito.when(mockMultDivModContext.expression(1)).thenReturn(mockExpressionContext2);
Mockito.when(spyVisitor.visit(mockExpressionContext1)).thenReturn(new MSNumber(left));
Mockito.when(spyVisitor.visit(mockExpressionContext2)).thenReturn(new MSNumber(right));

Assertions.assertThrows(RuntimeException.class, () -> spyVisitor.visitMultDivMod(mockMultDivModContext));
}

@ParameterizedTest
@CsvSource ({"2,true,/", "2,true,%", "2,false,/", "2,false,%", "true,2,/", "true,2,%", "false,2,/", "false,2,%"})
void visitMultDivModInvalidInputThrowsRuntimeException(String left, String right, String operator) {
mockMultDivModContext.op = new MockToken(operator);
Mockito.when(mockMultDivModContext.expression(0)).thenReturn(mockExpressionContext1);
Mockito.when(mockMultDivModContext.expression(1)).thenReturn(mockExpressionContext2);
Mockito.when(spyVisitor.visit(mockExpressionContext1)).thenReturn(new MSBool(Boolean.parseBoolean(left)));
Mockito.when(spyVisitor.visit(mockExpressionContext2)).thenReturn(new MSBool(Boolean.parseBoolean(right)));

Assertions.assertThrows(RuntimeException.class, () -> spyVisitor.visitMultDivMod(mockMultDivModContext));
}
}