package org.jtwig.render.expression.calculator;
import org.jtwig.exceptions.CalculationException;
import org.jtwig.model.expression.Expression;
import org.jtwig.model.expression.MapSelectionExpression;
import org.jtwig.render.RenderRequest;
import org.jtwig.value.WrappedCollection;
import org.jtwig.value.convert.Converter;
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 MapSelectionExpressionCalculatorTest {
private MapSelectionExpressionCalculator underTest = new MapSelectionExpressionCalculator();
@Rule
public ExpectedException expectedException = ExpectedException.none();
@Test
public void calculateWhenNotMap() throws Exception {
MapSelectionExpression mapSelectionExpression = mock(MapSelectionExpression.class);
RenderRequest request = mock(RenderRequest.class, RETURNS_DEEP_STUBS);
Expression expression = mock(Expression.class);
Object mapValue = new Object();
when(mapSelectionExpression.getMapExpression()).thenReturn(expression);
when(request.getEnvironment().getRenderEnvironment().getCalculateExpressionService().calculate(request, expression)).thenReturn(mapValue);
when(request.getEnvironment().getValueEnvironment().getCollectionConverter().convert(mapValue)).thenReturn(Converter.Result.<WrappedCollection>undefined());
expectedException.expect(CalculationException.class);
expectedException.expectMessage(containsString(String.format("Cannot convert %s to a map", mapValue)));
underTest.calculate(request, mapSelectionExpression);
}
@Test
public void calculateWhenMap() throws Exception {
MapSelectionExpression mapSelectionExpression = mock(MapSelectionExpression.class);
RenderRequest request = mock(RenderRequest.class, RETURNS_DEEP_STUBS);
WrappedCollection entries = mock(WrappedCollection.class);
Expression selectionExpression = mock(Expression.class);
Expression expression = mock(Expression.class);
Object selectionValue = new Object();
Object mapValue = new Object();
String mapEntryKey = "value";
Object mapEntryValue = new Object();
when(mapSelectionExpression.getSelectValue()).thenReturn(selectionExpression);
when(mapSelectionExpression.getMapExpression()).thenReturn(expression);
when(request.getEnvironment().getRenderEnvironment().getCalculateExpressionService().calculate(request, expression)).thenReturn(mapValue);
when(request.getEnvironment().getValueEnvironment().getCollectionConverter().convert(mapValue)).thenReturn(Converter.Result.defined(entries));
when(request.getEnvironment().getRenderEnvironment().getCalculateExpressionService().calculate(request, selectionExpression)).thenReturn(selectionValue);
when(request.getEnvironment().getValueEnvironment().getStringConverter().convert(selectionValue)).thenReturn(mapEntryKey);
when(entries.getValue(mapEntryKey)).thenReturn(mapEntryValue);
Object result = underTest.calculate(request, mapSelectionExpression);
assertSame(mapEntryValue, result);
}
}