apollo-ios/Tests/ApolloCodegenTests/ApolloSchemaTests.swift at 10b76d648cd4bb4fa5f823a5d6fe24849383f475 · sfoulston/apollo-ios · GitHub

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//
//  ApolloSchemaTests.swift
//  ApolloCodegenTests
//
//  Created by Ellen Shapiro on 10/7/19.
//  Copyright © 2019 Apollo GraphQL. All rights reserved.
//

import XCTest
@testable import ApolloCodegenLib

class ApolloSchemaTests: XCTestCase {

  private lazy var endpointURL = URL(string: "http://localhost:8080/graphql")!

  func testCreatingOptionsWithDefaultParameters() throws {
    let sourceRoot = CodegenTestHelper.sourceRootURL()
    let options = ApolloSchemaOptions(endpointURL: self.endpointURL,
                                      outputFolderURL: sourceRoot)

    let expectedOutputURL = sourceRoot.appendingPathComponent("schema.json")
    XCTAssertEqual(options.endpointURL, self.endpointURL)
    XCTAssertEqual(options.outputURL, expectedOutputURL)
    XCTAssertNil(options.apiKey)
    XCTAssertNil(options.header)

    XCTAssertEqual(options.arguments, [
        "client:download-schema",
        "--endpoint=http://localhost:8080/graphql",
        "'\(expectedOutputURL.path)'"
    ])
  }

  func testCreatingOptionsWithAllParameters() throws {
    let sourceRoot = CodegenTestHelper.sourceRootURL()
    let apiKey = "Fake_API_Key"
    let header = "Authorization: Bearer tokenGoesHere"

    let options = ApolloSchemaOptions(schemaFileName: "different_name",
                                      schemaFileType: .schemaDefinitionLanguage,
                                      apiKey: apiKey,
                                      endpointURL: self.endpointURL,
                                      header: header,
                                      outputFolderURL: sourceRoot)
    XCTAssertEqual(options.apiKey, apiKey)
    XCTAssertEqual(options.endpointURL, self.endpointURL)
    XCTAssertEqual(options.header, header)

    let expectedOutputURL = sourceRoot.appendingPathComponent("different_name.graphql")
    XCTAssertEqual(options.outputURL, expectedOutputURL)

    XCTAssertEqual(options.arguments, [
        "client:download-schema",
        "--endpoint=http://localhost:8080/graphql",
        "--key=\(apiKey)",
        "'\(expectedOutputURL.path)'",
        "--header='\(header)'"
    ])
  }

  func testDownloadingSchemaAsJSON() throws {
    let testOutputFolderURL = CodegenTestHelper.outputFolderURL()

    let options = ApolloSchemaOptions(endpointURL: self.endpointURL,
                                      outputFolderURL: testOutputFolderURL)

    // Delete anything existing at the output URL
    try FileManager.default.apollo_deleteFile(at: options.outputURL)
    XCTAssertFalse(FileManager.default.apollo_fileExists(at: options.outputURL))

    let cliFolderURL = CodegenTestHelper.cliFolderURL()

    _ = try ApolloSchemaDownloader.run(with: cliFolderURL,
                                       options: options)

    // Does the file now exist?
    XCTAssertTrue(FileManager.default.apollo_fileExists(at: options.outputURL))

    // Is it non-empty?
    let data = try Data(contentsOf: options.outputURL)
    XCTAssertFalse(data.isEmpty)

    // Is it JSON?
    let json = try XCTUnwrap(JSONSerialization.jsonObject(with: data, options: []) as? [AnyHashable:Any])

    // Is it schema json?
    _ = try XCTUnwrap(json["__schema"])

    // OK delete it now
    try FileManager.default.apollo_deleteFile(at: options.outputURL)
    XCTAssertFalse(FileManager.default.apollo_fileExists(at: options.outputURL))
  }

  func testDownloadingSchemaInSchemaDefinitionLanguage() throws {
    let testOutputFolderURL = CodegenTestHelper.outputFolderURL()

    let options = ApolloSchemaOptions(schemaFileType: .schemaDefinitionLanguage,
                                      endpointURL: self.endpointURL,
                                      outputFolderURL: testOutputFolderURL)

    // Delete anything existing at the output URL
    try FileManager.default.apollo_deleteFile(at: options.outputURL)
    XCTAssertFalse(FileManager.default.apollo_fileExists(at: options.outputURL))

    let cliFolderURL = CodegenTestHelper.cliFolderURL()

    print(try ApolloSchemaDownloader.run(with: cliFolderURL,
                                         options: options))

    // Does the file now exist?
    XCTAssertTrue(FileManager.default.apollo_fileExists(at: options.outputURL))

    // Is it non-empty?
    let data = try Data(contentsOf: options.outputURL)
    XCTAssertFalse(data.isEmpty)

    // It should not be JSON
    XCTAssertNil(try? JSONSerialization.jsonObject(with: data, options: []) as? [AnyHashable:Any])

    // OK delete it now
    try FileManager.default.apollo_deleteFile(at: options.outputURL)
    XCTAssertFalse(FileManager.default.apollo_fileExists(at: options.outputURL))
  }
}