public OutputTypeModel AnalyzeOperation(
IDocumentAnalyzerContext context,
SelectionSetVariants selectionSetVariants)
{
Path rootSelectionPath = Path.Root.Append(context.OperationName);
FragmentNode returnTypeFragment =
FragmentHelper.CreateFragmentNode(
context.OperationType,
rootSelectionPath,
selectionSetVariants.ReturnType);
returnTypeFragment = FragmentHelper.RewriteForConcreteType(returnTypeFragment);
OutputTypeModel returnType =
FragmentHelper.CreateInterface(
context,
returnTypeFragment,
rootSelectionPath);
FragmentHelper.CreateClass(
context,
returnTypeFragment,
selectionSetVariants.ReturnType,
returnType);
return(returnType);
}
public async Task GetFragment_From_FragmentTree_Found()
{
// arrange
var schema =
await new ServiceCollection()
.AddStarWarsRepositories()
.AddGraphQL()
.AddStarWars()
.BuildSchemaAsync();
var document =
Utf8GraphQLParser.Parse(@"
query GetHero {
hero(episode: NEW_HOPE) @returns(fragment: ""Hero"") {
... Characters
}
}
fragment Characters on Character @remove {
... Human
... Droid
}
fragment Hero on Character {
name
}
fragment Human on Human {
... Hero
homePlanet
}
fragment Droid on Droid {
... Hero
primaryFunction
}");
var context = new DocumentAnalyzerContext(schema, document);
var selectionSetVariants = context.CollectFields();
var fieldSelection = selectionSetVariants.ReturnType.Fields.First();
selectionSetVariants = context.CollectFields(fieldSelection);
// act
var returnTypeFragmentName = FragmentHelper.GetReturnTypeName(fieldSelection);
var returnTypeFragment = FragmentHelper.CreateFragmentNode(
selectionSetVariants.Variants[0],
fieldSelection.Path,
appendTypeName: true);
returnTypeFragment = FragmentHelper.GetFragment(
returnTypeFragment,
returnTypeFragmentName !);
// assert
Assert.NotNull(returnTypeFragment);
Assert.Equal("Hero", returnTypeFragment?.Fragment.Name);
}
private OutputTypeModel AnalyzeWithDefaults(
IDocumentAnalyzerContext context,
FieldSelection fieldSelection,
SelectionSetVariants selectionVariants)
{
FragmentNode returnTypeFragment =
FragmentHelper.CreateFragmentNode(
selectionVariants.ReturnType,
fieldSelection.Path);
OutputTypeModel returnType =
FragmentHelper.CreateInterface(
context,
returnTypeFragment,
fieldSelection.Path);
context.RegisterSelectionSet(
returnType.Type,
selectionVariants.ReturnType.SyntaxNode,
returnType.SelectionSet);
foreach (SelectionSet selectionSet in selectionVariants.Variants)
{
returnTypeFragment = FragmentHelper.CreateFragmentNode(
selectionSet,
fieldSelection.Path,
appendTypeName: true);
returnTypeFragment = FragmentHelper.RewriteForConcreteType(returnTypeFragment);
OutputTypeModel @interface =
FragmentHelper.CreateInterface(
context,
returnTypeFragment,
fieldSelection.Path,
new[] { returnType });
OutputTypeModel @class =
FragmentHelper.CreateClass(
context,
returnTypeFragment,
selectionSet,
@interface);
context.RegisterSelectionSet(
selectionSet.Type,
selectionSet.SyntaxNode,
@class.SelectionSet);
}
return(returnType);
}
public async Task GetReturnTypeName_Not_Found()
{
// arrange
var schema =
await new ServiceCollection()
.AddStarWarsRepositories()
.AddGraphQL()
.AddStarWars()
.BuildSchemaAsync();
var document =
Utf8GraphQLParser.Parse(@"
query GetHero {
hero(episode: NEW_HOPE) {
... Characters
}
}
fragment Characters on Character {
... Human
... Droid
}
fragment Hero on Character {
name
}
fragment Human on Human {
... Hero
homePlanet
}
fragment Droid on Droid {
... Hero
primaryFunction
}");
var context = new DocumentAnalyzerContext(schema, document);
var selectionSetVariants = context.CollectFields();
var fieldSelection = selectionSetVariants.ReturnType.Fields.First();
// act
var returnTypeFragmentName = FragmentHelper.GetReturnTypeName(fieldSelection);
// assert
Assert.Null(returnTypeFragmentName);
}
public override OutputTypeModel Analyze(
IDocumentAnalyzerContext context,
FieldSelection fieldSelection,
SelectionSetVariants selectionVariants)
{
var returnTypeFragmentName = FragmentHelper.GetReturnTypeName(fieldSelection);
if (returnTypeFragmentName is null)
{
return(AnalyzeWithDefaults(
context,
fieldSelection,
selectionVariants));
}
return(AnalyzeWithHoistedFragment(
context,
fieldSelection,
selectionVariants,
returnTypeFragmentName));
}
public async Task Create_TypeModels_Infer_From_Fragments_With_HoistedFragment()
{
// arrange
var schema =
await new ServiceCollection()
.AddStarWarsRepositories()
.AddGraphQL()
.AddStarWars()
.BuildSchemaAsync();
var document =
Utf8GraphQLParser.Parse(@"
query GetHero {
hero(episode: NEW_HOPE) @returns(fragment: ""Hero"") {
... Characters
}
}
fragment Characters on Character {
... Human
... Droid
}
fragment Hero on Character {
name
}
fragment Human on Human {
... Hero
homePlanet
}
fragment Droid on Droid {
... Hero
primaryFunction
}");
var context = new DocumentAnalyzerContext(schema, document);
var selectionSetVariants = context.CollectFields();
var fieldSelection = selectionSetVariants.ReturnType.Fields.First();
selectionSetVariants = context.CollectFields(fieldSelection);
// act
var list = new List <OutputTypeModel>();
var returnTypeFragmentName = FragmentHelper.GetReturnTypeName(fieldSelection);
var returnTypeFragment = FragmentHelper.CreateFragmentNode(
selectionSetVariants.Variants[0],
fieldSelection.Path,
appendTypeName: true);
returnTypeFragment = FragmentHelper.GetFragment(
returnTypeFragment,
returnTypeFragmentName !);
list.Add(FragmentHelper.CreateInterface(
context,
returnTypeFragment !,
fieldSelection.Path));
foreach (SelectionSet selectionSet in
selectionSetVariants.Variants.OrderBy(t => t.Type.Name.Value))
{
returnTypeFragment = FragmentHelper.CreateFragmentNode(
selectionSet,
fieldSelection.Path,
appendTypeName: true);
returnTypeFragment = FragmentHelper.RewriteForConcreteType(returnTypeFragment);
OutputTypeModel @interface = FragmentHelper.CreateInterface(
context,
returnTypeFragment,
fieldSelection.Path,
new [] { list[0] });
OutputTypeModel @class = FragmentHelper.CreateClass(
context,
returnTypeFragment,
selectionSet,
@interface);
list.Add(@interface);
list.Add(@class);
}
// assert
Assert.Collection(
list,
type =>
{
Assert.Equal("IHero", type.Name);
Assert.Empty(type.Implements);
Assert.Collection(
type.Fields,
field => Assert.Equal("Name", field.Name));
},
type =>
{
Assert.Equal("IGetHero_Hero_Droid", type.Name);
Assert.Collection(
type.Implements,
impl => Assert.Equal("ICharacters_Droid", impl.Name));
Assert.Empty(type.Fields);
},
type =>
{
Assert.Equal("GetHero_Hero_Droid", type.Name);
Assert.Collection(
type.Implements,
impl => Assert.Equal("IGetHero_Hero_Droid", impl.Name));
Assert.Collection(
type.Fields,
field => Assert.Equal("Name", field.Name),
field => Assert.Equal("PrimaryFunction", field.Name));
},
type =>
{
Assert.Equal("IGetHero_Hero_Human", type.Name);
Assert.Collection(
type.Implements,
impl => Assert.Equal("ICharacters_Human", impl.Name));
Assert.Empty(type.Fields);
},
type =>
{
Assert.Equal("GetHero_Hero_Human", type.Name);
Assert.Collection(
type.Implements,
impl => Assert.Equal("IGetHero_Hero_Human", impl.Name));
Assert.Collection(
type.Fields,
field => Assert.Equal("Name", field.Name),
field => Assert.Equal("HomePlanet", field.Name));
});
}
public async Task Create_TypeModels_Infer_TypeStructure()
{
// arrange
var schema =
await new ServiceCollection()
.AddStarWarsRepositories()
.AddGraphQL()
.AddStarWars()
.BuildSchemaAsync();
var document =
Utf8GraphQLParser.Parse(@"
query GetHero {
hero(episode: NEW_HOPE) {
name
}
}");
var context = new DocumentAnalyzerContext(schema, document);
var selectionSetVariants = context.CollectFields();
var fieldSelection = selectionSetVariants.ReturnType.Fields.First();
selectionSetVariants = context.CollectFields(fieldSelection);
// act
var list = new List <OutputTypeModel>();
var returnTypeFragment = FragmentHelper.CreateFragmentNode(
selectionSetVariants.ReturnType,
fieldSelection.Path);
list.Add(FragmentHelper.CreateInterface(
context,
returnTypeFragment,
fieldSelection.Path));
foreach (SelectionSet selectionSet in
selectionSetVariants.Variants.OrderBy(t => t.Type.Name.Value))
{
returnTypeFragment = FragmentHelper.CreateFragmentNode(
selectionSet,
fieldSelection.Path,
appendTypeName: true);
OutputTypeModel @interface = FragmentHelper.CreateInterface(
context,
returnTypeFragment,
fieldSelection.Path,
new [] { list[0] });
OutputTypeModel @class = FragmentHelper.CreateClass(
context,
returnTypeFragment,
selectionSet,
@interface);
list.Add(@interface);
list.Add(@class);
}
// assert
Assert.Collection(
list,
type =>
{
Assert.Equal("IGetHero_Hero", type.Name);
Assert.Empty(type.Implements);
Assert.Collection(
type.Fields,
field => Assert.Equal("Name", field.Name));
},
type =>
{
Assert.Equal("IGetHero_Hero_Droid", type.Name);
Assert.Collection(
type.Implements,
impl => Assert.Equal("IGetHero_Hero", impl.Name));
Assert.Empty(type.Fields);
},
type =>
{
Assert.Equal("GetHero_Hero_Droid", type.Name);
Assert.Collection(
type.Implements,
impl => Assert.Equal("IGetHero_Hero_Droid", impl.Name));
Assert.Collection(
type.Fields,
field => Assert.Equal("Name", field.Name));
},
type =>
{
Assert.Equal("IGetHero_Hero_Human", type.Name);
Assert.Collection(
type.Implements,
impl => Assert.Equal("IGetHero_Hero", impl.Name));
Assert.Empty(type.Fields);
},
type =>
{
Assert.Equal("GetHero_Hero_Human", type.Name);
Assert.Collection(
type.Implements,
impl => Assert.Equal("IGetHero_Hero_Human", impl.Name));
Assert.Collection(
type.Fields,
field => Assert.Equal("Name", field.Name));
});
}
private OutputTypeModel AnalyzeWithHoistedFragment(
IDocumentAnalyzerContext context,
FieldSelection fieldSelection,
SelectionSetVariants selectionVariants,
string fragmentName)
{
FragmentNode?returnTypeFragment =
FragmentHelper.CreateFragmentNode(
selectionVariants.Variants[0],
fieldSelection.Path,
appendTypeName: true);
returnTypeFragment = FragmentHelper.GetFragment(returnTypeFragment, fragmentName);
if (returnTypeFragment is null)
{
// TODO : throw helper
throw new GraphQLException(
"The specified return fragment does not exist.");
}
OutputTypeModel returnType =
FragmentHelper.CreateInterface(context, returnTypeFragment, fieldSelection.Path);
context.RegisterSelectionSet(
returnType.Type,
selectionVariants.ReturnType.SyntaxNode,
returnType.SelectionSet);
foreach (SelectionSet selectionSet in selectionVariants.Variants)
{
returnTypeFragment = FragmentHelper.CreateFragmentNode(
selectionSet,
fieldSelection.Path,
appendTypeName: true);
returnTypeFragment = FragmentHelper.RewriteForConcreteType(returnTypeFragment);
if (FragmentHelper.GetFragment(returnTypeFragment, fragmentName) is null)
{
// TODO : throw helper
throw new GraphQLException(
"The specified return fragment must be implement by all type fragments.");
}
OutputTypeModel @interface =
FragmentHelper.CreateInterface(
context,
returnTypeFragment,
fieldSelection.Path,
new[] { returnType });
OutputTypeModel @class =
FragmentHelper.CreateClass(
context,
returnTypeFragment,
selectionSet,
@interface);
context.RegisterSelectionSet(
selectionSet.Type,
selectionSet.SyntaxNode,
@class.SelectionSet);
}
return(returnType);
}
private OutputTypeModel AnalyzeWithHoistedFragment(
IDocumentAnalyzerContext context,
FieldSelection fieldSelection,
SelectionSetVariants selectionVariants,
string fragmentName)
{
FragmentNode?returnTypeFragment =
FragmentHelper.CreateFragmentNode(
selectionVariants.Variants[0],
fieldSelection.Path,
appendTypeName: true);
returnTypeFragment = FragmentHelper.GetFragment(returnTypeFragment, fragmentName);
if (returnTypeFragment is null)
{
throw ThrowHelper.ReturnFragmentDoesNotExist();
}
OutputTypeModel returnType =
FragmentHelper.CreateInterface(context, returnTypeFragment, fieldSelection.Path);
context.RegisterSelectionSet(
returnType.Type,
selectionVariants.ReturnType.SyntaxNode,
returnType.SelectionSet);
foreach (SelectionSet selectionSet in selectionVariants.Variants)
{
returnTypeFragment = FragmentHelper.CreateFragmentNode(
selectionSet,
fieldSelection.Path,
appendTypeName: true);
returnTypeFragment = FragmentHelper.RewriteForConcreteType(returnTypeFragment);
if (FragmentHelper.GetFragment(returnTypeFragment, fragmentName) is null)
{
throw ThrowHelper.FragmentMustBeImplementedByAllTypeFragments();
}
OutputTypeModel @interface =
FragmentHelper.CreateInterface(
context,
returnTypeFragment,
fieldSelection.Path,
new[] { returnType });
OutputTypeModel @class =
FragmentHelper.CreateClass(
context,
returnTypeFragment,
selectionSet,
@interface);
context.RegisterSelectionSet(
selectionSet.Type,
selectionSet.SyntaxNode,
@class.SelectionSet);
}
return(returnType);
}
