public void ParseQueryWithFragment()
{
// arrange
var sourceText = "query a { x { ... y } } fragment y on Type { z }";
// act
var parser = new StringGraphQLParser(sourceText);
DocumentNode document = parser.Parse();
// assert
Assert.Collection(document.Definitions,
t =>
{
Assert.IsType <OperationDefinitionNode>(t);
var operationDefinition = (OperationDefinitionNode)t;
Assert.Equal(NodeKind.OperationDefinition, operationDefinition.Kind);
Assert.Equal("a", operationDefinition.Name.Value);
Assert.Equal(OperationType.Query, operationDefinition.Operation);
Assert.Empty(operationDefinition.VariableDefinitions);
Assert.Empty(operationDefinition.Directives);
Assert.Collection(operationDefinition.SelectionSet.Selections,
s1 =>
{
FieldNode field1 = Assert.IsType <FieldNode>(s1);
Assert.Null(field1.Alias);
Assert.Equal("x", field1.Name.Value);
Assert.Empty(field1.Arguments);
Assert.Empty(field1.Directives);
Assert.Collection(field1.SelectionSet.Selections,
s2 =>
{
Assert.IsType <FragmentSpreadNode>(s2);
FragmentSpreadNode spread = (FragmentSpreadNode)s2;
Assert.Equal("y", spread.Name.Value);
Assert.Empty(spread.Directives);
});
});
},
t =>
{
FragmentDefinitionNode fragmentDefinition = Assert.IsType <FragmentDefinitionNode>(t);
Assert.Equal("y", fragmentDefinition.Name.Value);
Assert.Equal("Type", fragmentDefinition.TypeCondition.Name.Value);
Assert.Empty(fragmentDefinition.Directives);
ISelectionNode selectionNode = fragmentDefinition
.SelectionSet.Selections.Single();
Assert.IsType <FieldNode>(selectionNode);
Assert.Equal("z", ((FieldNode)selectionNode).Name.Value);
});
}
public void ParserSimpleQuery(string operation, OperationType expectedOperation)
{
// arrange
string sourceText = $"{operation } a($s : String = \"hello\") {{ x {{ y }} }}";
// act
var parser = new StringGraphQLParser(sourceText);
DocumentNode document = parser.Parse();
// assert
Assert.Collection(document.Definitions,
t =>
{
OperationDefinitionNode operationDefinition = Assert.IsType <OperationDefinitionNode>(t);
Assert.Equal(NodeKind.OperationDefinition, operationDefinition.Kind);
Assert.Equal("a", operationDefinition.Name.Value);
Assert.Equal(expectedOperation, operationDefinition.Operation);
Assert.Empty(operationDefinition.Directives);
Assert.Collection(operationDefinition.VariableDefinitions,
v1 =>
{
Assert.Equal("s", v1.Variable.Name.Value);
Assert.Equal("String", ((NamedTypeNode)v1.Type).Name.Value);
Assert.IsType <StringValueNode>(v1.DefaultValue);
});
Assert.Collection(operationDefinition.SelectionSet.Selections,
s1 =>
{
FieldNode field1 = Assert.IsType <FieldNode>(s1);
Assert.Null(field1.Alias);
Assert.Equal("x", field1.Name.Value);
Assert.Empty(field1.Arguments);
Assert.Empty(field1.Directives);
Assert.Collection(field1.SelectionSet.Selections,
s2 =>
{
FieldNode field2 = Assert.IsType <FieldNode>(s2);
Assert.Null(field2.Alias);
Assert.Equal("y", field2.Name.Value);
Assert.Empty(field2.Arguments);
Assert.Empty(field2.Directives);
Assert.Null(field2.SelectionSet);
});
});
});
}
public void ParseSimpleShortHandFormQuery()
{
// arrange
string sourceText = "{ x { y } }";
// act
var parser = new StringGraphQLParser(sourceText);
DocumentNode document = parser.Parse();
// assert
Assert.Collection(document.Definitions,
t =>
{
Assert.IsType <OperationDefinitionNode>(t);
var operationDefinition = (OperationDefinitionNode)t;
Assert.Equal(NodeKind.OperationDefinition, operationDefinition.Kind);
Assert.Null(operationDefinition.Name);
Assert.Equal(OperationType.Query, operationDefinition.Operation);
Assert.Empty(operationDefinition.VariableDefinitions);
Assert.Empty(operationDefinition.Directives);
Assert.Collection(operationDefinition.SelectionSet.Selections,
s1 =>
{
Assert.IsType <FieldNode>(s1);
var field1 = (FieldNode)s1;
Assert.Null(field1.Alias);
Assert.Equal("x", field1.Name.Value);
Assert.Empty(field1.Arguments);
Assert.Empty(field1.Directives);
Assert.Collection(field1.SelectionSet.Selections,
s2 =>
{
Assert.IsType <FieldNode>(s2);
var field2 = (FieldNode)s2;
Assert.Null(field2.Alias);
Assert.Equal("y", field2.Name.Value);
Assert.Empty(field2.Arguments);
Assert.Empty(field2.Directives);
Assert.Null(field2.SelectionSet);
});
});
});
}
public void QueryWithComments()
{
// arrange
string sourceText =
@"{
hero {
name
# Queries can have comments!
friends(a:""foo"" b: 123456 c:null d: true) {
name
}
}
}";
// act
var parser = new StringGraphQLParser(sourceText);
DocumentNode document = parser.Parse();
// assert
document.MatchSnapshot();
}