public void ExpressionWithMethodCallOnRoot_HasEmptyPropertyChain()
{
string input = "@.Something()";
IReadOnlyList <FilterExpressionToken> tokens = FilterExpressionTokenizer.Tokenize(input);
Assert.Single(tokens);
Assert.IsType <MethodCallExpressionToken>(tokens.Single());
MethodCallExpressionToken mct = tokens.Single() as MethodCallExpressionToken;
Assert.Equal("Something", mct.MethodName);
Assert.Empty(mct.Arguments);
Assert.IsType <PropertyExpressionToken>(mct.CalledOnExpression);
PropertyExpressionToken callee = mct.CalledOnExpression as PropertyExpressionToken;
Assert.Empty(callee.PropertyChain);
}
public void ExpressionWithMethodCallWithMixedArgs_ReturnsValidTokens()
{
string input = "@.a.c.Call1(@.call2(123, false).call3(), true)";
IReadOnlyList <FilterExpressionToken> tokens = FilterExpressionTokenizer.Tokenize(input);
Assert.Single(tokens);
Assert.IsType <MethodCallExpressionToken>(tokens.Single());
MethodCallExpressionToken call1 = tokens.Single() as MethodCallExpressionToken;
Assert.IsType <PropertyExpressionToken>(call1.CalledOnExpression);
PropertyExpressionToken prop1 = call1.CalledOnExpression as PropertyExpressionToken;
Assert.Equal(2, prop1.PropertyChain.Length);
Assert.Equal("a", prop1.PropertyChain[0].StringValue);
Assert.Equal("c", prop1.PropertyChain[1].StringValue);
Assert.Equal("Call1", call1.MethodName);
Assert.Equal(2, call1.Arguments.Length);
Assert.IsType <ConstantBoolExpressionToken>(call1.Arguments.Last());
Assert.True(call1.Arguments.Last() is ConstantBoolExpressionToken cbt && cbt.Token.BoolValue);
Assert.IsType <MethodCallExpressionToken>(call1.Arguments.First());
MethodCallExpressionToken call3 = call1.Arguments.First() as MethodCallExpressionToken;
Assert.Equal("call3", call3.MethodName);
Assert.Empty(call3.Arguments);
Assert.IsType <MethodCallExpressionToken>(call3.CalledOnExpression);
MethodCallExpressionToken call2 = call3.CalledOnExpression as MethodCallExpressionToken;
Assert.Equal("call2", call2.MethodName);
Assert.IsType <PropertyExpressionToken>(call2.CalledOnExpression);
Assert.Empty((call2.CalledOnExpression as PropertyExpressionToken).PropertyChain);
Assert.Equal(2, call2.Arguments.Length);
Assert.True(call2.Arguments[0] is ConstantNumberExpressionToken arg1 && arg1.Token.NumberValue == 123.0);
Assert.True(call2.Arguments[1] is ConstantBoolExpressionToken arg2 && !arg2.Token.BoolValue);
}
