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Field Merging[2/x] Compute MergedSelections w/MergingStrategy
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102 changes: 102 additions & 0 deletions
102
Tests/ApolloCodegenTests/CodeGenIR/IRMergedSelections_FieldMergingStrategy_Tests.swift
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,102 @@ | ||
| import XCTest | ||
| import Nimble | ||
| import OrderedCollections | ||
| import GraphQLCompiler | ||
| @testable import IR | ||
| @testable import ApolloCodegenLib | ||
| import ApolloInternalTestHelpers | ||
| import ApolloCodegenInternalTestHelpers | ||
| import ApolloAPI | ||
|
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| class IRMergedSelections_FieldMergingStrategy_Tests: XCTestCase { | ||
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| var schemaSDL: String! | ||
| var document: String! | ||
| var ir: IRBuilderTestWrapper! | ||
| var operation: CompilationResult.OperationDefinition! | ||
| var rootField: IRTestWrapper<IR.Field>! | ||
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| var schema: IR.Schema { ir.schema } | ||
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| override func setUp() { | ||
| super.setUp() | ||
| } | ||
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| override func tearDown() { | ||
| schemaSDL = nil | ||
| document = nil | ||
| operation = nil | ||
| rootField = nil | ||
| super.tearDown() | ||
| } | ||
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| // MARK: - Helpers | ||
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| func buildRootField( | ||
| mergingStrategy: IR.MergedSelections.MergingStrategy | ||
| ) async throws { | ||
| ir = try await IRBuilderTestWrapper(.mock(schema: schemaSDL, document: document)) | ||
| operation = try XCTUnwrap(ir.compilationResult.operations.first) | ||
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| rootField = await ir.build( | ||
| operation: operation, | ||
| mergingStrategy: mergingStrategy | ||
| ).rootField | ||
| } | ||
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| // MARK: - Test MergingStrategy: Ancestors | ||
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| func test__mergingStrategy_ancestors__givenFieldInAncestor_includesField() async throws { | ||
| // given | ||
| schemaSDL = """ | ||
| type Query { | ||
| allAnimals: [Animal!] | ||
| } | ||
| interface Animal { | ||
| species: String | ||
| } | ||
| interface Pet implements Animal { | ||
| species: String | ||
| petName: String | ||
| } | ||
| """ | ||
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| document = """ | ||
| query Test { | ||
| allAnimals { | ||
| species | ||
| ... on Pet { | ||
| petName | ||
| } | ||
| } | ||
| } | ||
| """ | ||
| let mergingStrategy: MergedSelections.MergingStrategy = .ancestors | ||
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| try await buildRootField(mergingStrategy: mergingStrategy) | ||
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| let Scalar_String = try unwrap(self.schema[scalar: "String"]) | ||
|
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| // when | ||
| let subject = rootField[field: "allAnimals"]?[as: "Pet"] | ||
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| let expected = SelectionSetMatcher( | ||
| parentType: try unwrap(self.schema[interface: "Pet"]), | ||
| directSelections: [ | ||
| .field("petName", type: .scalar(Scalar_String)) | ||
| ], | ||
| mergedSelections: [ | ||
| .field("species", type: .scalar(Scalar_String)) | ||
| ], | ||
| mergedSources: [ | ||
| try .mock(rootField[field:"allAnimals"]) | ||
| ], | ||
| mergingStrategy: mergingStrategy | ||
| ) | ||
|
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| // then | ||
| expect(subject).to(shallowlyMatch(expected)) | ||
| } | ||
| } |
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