public void TokensWithNegation_Parse_ReturnsCorrectExpression() { string input = "[email protected]"; IReadOnlyList <FilterExpressionToken> tokens = FilterExpressionTokenizer.Tokenize(input); FilterSubExpression expr = FilterParser.Parse(tokens); Assert.IsType <NegationFilterSubExpression>(expr); NegationFilterSubExpression neg = expr as NegationFilterSubExpression; Assert.IsType <TruthyFilterSubExpression>(neg.Expression); TruthyFilterSubExpression truthy = neg.Expression as TruthyFilterSubExpression; PropertyFilterSubExpression prop = truthy.Expression as PropertyFilterSubExpression; Assert.True(prop != null && prop.PropertyChain.Length == 2 && prop.PropertyChain[0] == "price" && prop.PropertyChain[1] == "count"); }
public void TokensWithEscapedPropAccess_Parse_ReturnsCorrectExpression() { string input = "@.items['2'] > 3"; IReadOnlyList <FilterExpressionToken> tokens = FilterExpressionTokenizer.Tokenize(input); FilterSubExpression expr = FilterParser.Parse(tokens); Assert.IsType <ComparisonFilterSubExpression>(expr); ComparisonFilterSubExpression comp = expr as ComparisonFilterSubExpression; Assert.IsType <PropertyFilterSubExpression>(comp.LeftSide); Assert.True((comp.RightSide as NumberConstantFilterSubExpression)?.Value == 3.0); PropertyFilterSubExpression aa = comp.LeftSide as PropertyFilterSubExpression; Assert.Equal(2, aa.PropertyChain.Length); Assert.Equal("items", aa.PropertyChain[0]); Assert.Equal("2", aa.PropertyChain[1]); }
public void TokensWithMethodCallOnArray_Parse_ReturnsCorrectExpression() { string input = "@.items.next[-1].contains(2.123)"; IReadOnlyList <FilterExpressionToken> tokens = FilterExpressionTokenizer.Tokenize(input); FilterSubExpression expr = FilterParser.Parse(tokens); Assert.IsType <MethodCallFilterSubExpression>(expr); MethodCallFilterSubExpression mc = expr as MethodCallFilterSubExpression; Assert.Equal(1, mc.Arguments.Count); Assert.Equal(2.123, (mc.Arguments[0] as NumberConstantFilterSubExpression)?.Value ?? double.MinValue, 8); Assert.IsType <ArrayAccessFilterSubExpression>(mc.CalledOnExpression); ArrayAccessFilterSubExpression aa = mc.CalledOnExpression as ArrayAccessFilterSubExpression; Assert.Equal(-1, aa.ExactElementsAccess.Single()); Assert.IsType <PropertyFilterSubExpression>(aa.ExecutedOn); PropertyFilterSubExpression prop = aa.ExecutedOn as PropertyFilterSubExpression; Assert.Equal(2, prop.PropertyChain.Length); Assert.Equal("items", prop.PropertyChain[0]); Assert.Equal("next", prop.PropertyChain[1]); }
public void TokensWithMethodsComparisonLogicOperatorsAndTruthy_Parse_ReturnsValidExpression() { string input = "@.price.count >= 0 && (@.name.first.contains('a') || @['name'].contains(5) || @.f)"; IReadOnlyList <FilterExpressionToken> tokens = FilterExpressionTokenizer.Tokenize(input); FilterSubExpression expr = FilterParser.Parse(tokens); Assert.IsType <LogicalFilterSubExpression>(expr); LogicalFilterSubExpression e1 = expr as LogicalFilterSubExpression; Assert.True(e1.IsAnd); Assert.IsType <ComparisonFilterSubExpression>(e1.LeftSide); // @.price.count >= 0 ComparisonFilterSubExpression comp1 = e1.LeftSide as ComparisonFilterSubExpression; Assert.True(comp1.IsGreaterOrEqual); Assert.IsType <PropertyFilterSubExpression>(comp1.LeftSide); Assert.True(comp1.LeftSide is PropertyFilterSubExpression p1 && p1.PropertyChain.Length == 2 && p1.PropertyChain.First() == "price" && p1.PropertyChain.Last() == "count" ); Assert.True(comp1.RightSide is NumberConstantFilterSubExpression c1 && c1.Value == 0.0 ); // @.name.first.contains('a') || @['name'].contains(5) || @.f LogicalFilterSubExpression comp2 = (e1.RightSide as GroupFilterSubExpression).Expression as LogicalFilterSubExpression; Assert.NotNull(comp2); // @.name.first.contains('a') Assert.IsType <MethodCallFilterSubExpression>(comp2.LeftSide); MethodCallFilterSubExpression mc1 = comp2.LeftSide as MethodCallFilterSubExpression; Assert.Equal("contains", mc1.MethodName); Assert.True(mc1.Arguments.Count == 1 && (mc1.Arguments.Single() as StringConstantFilterSubExpression).Value == "a"); PropertyFilterSubExpression calledOn1 = mc1.CalledOnExpression as PropertyFilterSubExpression; Assert.True(calledOn1.PropertyChain.Length == 2 && calledOn1.PropertyChain.First() == "name" && calledOn1.PropertyChain.Last() == "first"); // @['name'].contains(5) || @.f Assert.IsType <LogicalFilterSubExpression>(comp2.RightSide); LogicalFilterSubExpression logical3 = comp2.RightSide as LogicalFilterSubExpression; Assert.True(logical3.IsOr); // @['name'].contains(5) Assert.IsType <MethodCallFilterSubExpression>(logical3.LeftSide); MethodCallFilterSubExpression mc2 = logical3.LeftSide as MethodCallFilterSubExpression; Assert.Equal("contains", mc2.MethodName); Assert.Equal(5.0, (mc2.Arguments.Single() as NumberConstantFilterSubExpression).Value); Assert.Equal("name", (mc2.CalledOnExpression as PropertyFilterSubExpression).PropertyChain.Single()); // || @.f Assert.IsType <TruthyFilterSubExpression>(logical3.RightSide); TruthyFilterSubExpression truthy = logical3.RightSide as TruthyFilterSubExpression; Assert.IsType <PropertyFilterSubExpression>(truthy.Expression); PropertyFilterSubExpression truthyProp = truthy.Expression as PropertyFilterSubExpression; Assert.Equal("f", truthyProp.PropertyChain.Single()); }