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/*
This source file is part of the Swift.org open source project
Copyright (c) 2021 Apple Inc. and the Swift project authors
Licensed under Apache License v2.0 with Runtime Library Exception
See https://swift.org/LICENSE.txt for license information
See https://swift.org/CONTRIBUTORS.txt for Swift project authors
*/
import XCTest
@testable import SymbolKit
class SymbolGraphTests: XCTestCase {
func testDecodingSymbolWithCompletionHandler() throws {
let jsonData = encodedSymbolGraph(withCompletionHandlerVariant: true, withAsyncKeywordVariant: false).data(using: .utf8)!
let symbolGraph = try JSONDecoder().decode(SymbolGraph.self, from: jsonData)
XCTAssertEqual(symbolGraph.symbols.count, 1, "Only one of the symbols should be decoded")
let symbol = try XCTUnwrap(symbolGraph.symbols.values.first)
let declaration = try XCTUnwrap(symbol.mixins[SymbolGraph.Symbol.DeclarationFragments.mixinKey] as? SymbolGraph.Symbol.DeclarationFragments)
XCTAssertFalse(declaration.declarationFragments.contains(where: { fragment in
fragment.kind == .keyword && fragment.spelling == "async"
}))
XCTAssertTrue(declaration.declarationFragments.contains(where: { fragment in
fragment.kind == .externalParameter && fragment.spelling == "completionHandler"
}))
}
func testDecodingSymbolWithAsyncKeyword() throws {
let jsonData = encodedSymbolGraph(withCompletionHandlerVariant: false, withAsyncKeywordVariant: true).data(using: .utf8)!
let symbolGraph = try JSONDecoder().decode(SymbolGraph.self, from: jsonData)
XCTAssertEqual(symbolGraph.symbols.count, 1, "Only one of the symbols should be decoded")
let symbol = try XCTUnwrap(symbolGraph.symbols.values.first)
let declaration = try XCTUnwrap(symbol.mixins[SymbolGraph.Symbol.DeclarationFragments.mixinKey] as? SymbolGraph.Symbol.DeclarationFragments)
XCTAssertTrue(declaration.declarationFragments.contains(where: { fragment in
fragment.kind == .keyword && fragment.spelling == "async"
}))
XCTAssertFalse(declaration.declarationFragments.contains(where: { fragment in
fragment.kind == .externalParameter && fragment.spelling == "completionHandler"
}))
}
func testDecodingDuplicateSymbolWithBothVariants() throws {
let jsonData = encodedSymbolGraph(withCompletionHandlerVariant: true, withAsyncKeywordVariant: true).data(using: .utf8)!
// This shouldn't fatalError
let symbolGraph = try JSONDecoder().decode(SymbolGraph.self, from: jsonData)
XCTAssertEqual(symbolGraph.symbols.count, 1, "Only one of the symbols should be decoded")
let symbol = try XCTUnwrap(symbolGraph.symbols.values.first)
let declaration = try XCTUnwrap(symbol.mixins[SymbolGraph.Symbol.DeclarationFragments.mixinKey] as? SymbolGraph.Symbol.DeclarationFragments)
XCTAssertFalse(declaration.declarationFragments.contains(where: { fragment in
fragment.kind == .keyword && fragment.spelling == "async"
}))
XCTAssertTrue(declaration.declarationFragments.contains(where: { fragment in
fragment.kind == .externalParameter && fragment.spelling == "completionHandler"
}))
// The async declaration should have been saved as an alternate declaration
let alternateDeclarations = try XCTUnwrap(symbol.alternateDeclarations)
XCTAssertEqual(alternateDeclarations.count, 1)
let alternate = alternateDeclarations[0]
XCTAssertTrue(alternate.declarationFragments.contains(where: { fragment in
fragment.kind == .keyword && fragment.spelling == "async"
}))
XCTAssertFalse(alternate.declarationFragments.contains(where: { fragment in
fragment.kind == .externalParameter && fragment.spelling == "completionHandler"
}))
}
}
// MARK: Test Data
// This is a symbol with a completion handler closure argument
let symbolWithCompletionBlock = """
{
"accessLevel" : "public",
"kind" : {
"displayName" : "Instance Method",
"identifier" : "swift.method"
},
"pathComponents" : [
"ClassName",
"something(completionHandler:)"
],
"identifier" : {
"precise" : "same-precise-identifier-for-both",
"interfaceLanguage" : "swift"
},
"names" : {
"title" : "something(completionHandler:)"
},
"declarationFragments" : [
{
"kind" : "keyword",
"spelling" : "func"
},
{
"kind" : "text",
"spelling" : " "
},
{
"kind" : "identifier",
"spelling" : "something"
},
{
"kind" : "text",
"spelling" : "("
},
{
"kind" : "externalParam",
"spelling" : "completionHandler"
},
{
"kind" : "text",
"spelling" : ": ("
},
{
"kind" : "keyword",
"spelling" : "Any"
},
{
"kind" : "text",
"spelling" : ") -> "
},
{
"kind" : "typeIdentifier",
"preciseIdentifier" : "s:s4Voida",
"spelling" : "Void"
},
{
"kind" : "text",
"spelling" : ")"
}
]
}
"""
// This is the async keyword variant of the same symbol
let symbolWithAsyncKeyword = """
{
"accessLevel" : "public",
"kind" : {
"displayName" : "Instance Method",
"identifier" : "swift.method"
},
"pathComponents" : [
"ClassName",
"something()"
],
"identifier" : {
"precise" : "same-precise-identifier-for-both",
"interfaceLanguage" : "swift"
},
"names" : {
"title" : "something()"
},
"declarationFragments" : [
{
"kind" : "keyword",
"spelling" : "func"
},
{
"kind" : "text",
"spelling" : " "
},
{
"kind" : "identifier",
"spelling" : "something"
},
{
"kind" : "text",
"spelling" : "()"
},
{
"kind" : "keyword",
"spelling" : "async"
},
{
"kind" : "text",
"spelling" : " -> "
},
{
"kind" : "keyword",
"spelling" : "Any"
}
]
}
"""
private func encodedSymbolGraph(withCompletionHandlerVariant: Bool, withAsyncKeywordVariant: Bool) -> String {
return """
{
"metadata" : {
"generator" : "unit-test",
"formatVersion" : {
"major" : 1,
"minor" : 0,
"patch" : 0
}
},
"relationships" : [
],
"symbols" : [
\(withCompletionHandlerVariant ? symbolWithCompletionBlock : "")\(withCompletionHandlerVariant && withAsyncKeywordVariant ? "," : "")
\(withAsyncKeywordVariant ? symbolWithAsyncKeyword : "")
],
"module" : {
"name" : "ModuleName",
"platform" : {
}
}
}
"""
}
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