package org.jtwig.render.expression.calculator.operation.binary.calculators;
import org.jtwig.exceptions.CalculationException;
import org.jtwig.model.expression.Expression;
import org.jtwig.model.expression.InjectableExpression;
import org.junit.Rule;
import org.junit.Test;
import org.junit.rules.ExpectedException;
import static org.hamcrest.Matchers.containsString;
import static org.junit.Assert.assertSame;
import static org.mockito.Mockito.*;
public class CompositionOperationCalculatorTest {
private CompositionOperationCalculator underTest = new CompositionOperationCalculator();
@Rule
public ExpectedException expectedException = ExpectedException.none();
@Test
public void calculateInvalidRightExpression() throws Exception {
BinaryOperationCalculator.Request request = mock(BinaryOperationCalculator.Request.class, RETURNS_DEEP_STUBS);
Expression expression = mock(Expression.class);
when(request.getRightOperand()).thenReturn(expression);
expectedException.expect(CalculationException.class);
expectedException.expectMessage(containsString("Invalid composition expression"));
underTest.calculate(request);
}
@Test
public void calculate() throws Exception {
Object expected = new Object();
BinaryOperationCalculator.Request request = mock(BinaryOperationCalculator.Request.class, RETURNS_DEEP_STUBS);
InjectableExpression rightOperand = mock(InjectableExpression.class);
Expression leftOperand = mock(Expression.class);
Expression expression = mock(Expression.class);
when(request.getRightOperand()).thenReturn(rightOperand);
when(request.getLeftOperand()).thenReturn(leftOperand);
when(rightOperand.inject(leftOperand)).thenReturn(expression);
when(request.getEnvironment().getRenderEnvironment().getCalculateExpressionService().calculate(request, expression)).thenReturn(expected);
Object result = underTest.calculate(request);
assertSame(expected, result);
}
}