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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 Foundation
import XCTest
@testable import SwiftDocC
class VariantOverridesTests: XCTestCase {
var overrideA = VariantOverride(
traits: [.interfaceLanguage("language A")],
patch: [
.replace(
pointer: JSONPointer(pathComponents: ["a"]),
value: AnyCodable("value1")
),
]
)
var overrideB = VariantOverride(traits: [.interfaceLanguage("language B")], patch: [])
func testRegistersNewOverrideIfNoOverridesOfTheSameTraitHaveBeenRegistered() {
let variantOverrides = VariantOverrides(values: [overrideA])
variantOverrides.add(overrideB)
XCTAssertEqual(variantOverrides.values.count, 2)
XCTAssertEqual(variantOverrides.values[1].traits, [.interfaceLanguage("language B")])
}
func testRegistersPatchInExistingOverrideIfAnOverrideWithTheSameTraitHasBeenRegistered() throws {
let variantOverrides = VariantOverrides(values: [overrideA])
variantOverrides.add(
VariantOverride(
traits: [.interfaceLanguage("language A")],
patch: [
.replace(
pointer: JSONPointer(pathComponents: ["b", "c"]),
value: AnyCodable("value2")
),
]
)
)
XCTAssertEqual(variantOverrides.values.count, 1)
let variantOverride = try XCTUnwrap(variantOverrides.values.first)
XCTAssertEqual(variantOverride.traits, [.interfaceLanguage("language A")])
XCTAssertEqual(variantOverride.patch.count, 2)
for (index, patchOperation) in variantOverride.patch.enumerated() {
let expectedPointerComponents: [String]
let expectedValue: String
switch index {
case 0:
expectedPointerComponents = ["a"]
expectedValue = "value1"
case 1:
expectedPointerComponents = ["b", "c"]
expectedValue = "value2"
default:
continue
}
XCTAssertEqual(patchOperation.pointer.pathComponents, expectedPointerComponents)
guard case .replace(_, let value) = patchOperation else {
XCTFail("Unexpected patch operation")
return
}
XCTAssertEqual(value.value as! String, expectedValue)
}
}
func testRegistersMultipleOverrides() {
let variantOverrides = VariantOverrides()
variantOverrides.add(contentsOf: [overrideA, overrideB])
XCTAssertEqual(variantOverrides.values.count, 2)
}
func testEncodesAsASingleValue() throws {
let encodedVariantOverrides = try JSONEncoder().encode(VariantOverrides(values: [overrideA]))
let variantOverrides = try XCTUnwrap(
JSONSerialization.jsonObject(with: encodedVariantOverrides) as? NSArray
)
XCTAssertEqual(
variantOverrides,
[
[
"traits": [
[ "interfaceLanguage" : "language A" ],
],
"patch": [
[
"path": "/a",
"value": "value1",
"op": "replace",
]
],
],
]
)
}
func testDecodesAsASingleValue() throws {
let encoded = """
[
{
"traits": [ { "interfaceLanguage": "objc" } ],
"patch": [
{
"path": "/a/b",
"value": "value",
"op": "replace"
}
]
}
]
""".data(using: .utf8)!
let overrides = try JSONDecoder().decode(VariantOverrides.self, from: encoded)
XCTAssertEqual(overrides.values.count, 1)
let variantOverride = try XCTUnwrap(overrides.values.first)
XCTAssertEqual(variantOverride.traits, [.interfaceLanguage("objc")])
XCTAssertEqual(variantOverride.patch.count, 1)
let patchOperation = try XCTUnwrap(variantOverride.patch.first)
XCTAssertEqual(patchOperation.operation, .replace)
guard case .replace(_, let value) = patchOperation, case .string(let stringValue) = value.value as? JSON else {
XCTFail()
return
}
XCTAssertEqual(stringValue, "value")
XCTAssertEqual(patchOperation.pointer.pathComponents, ["a", "b"])
}
}
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