File: TestDiscoveryTests.swift

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//===----------------------------------------------------------------------===//
//
// This source file is part of the Swift open source project
//
// Copyright (c) 2014-2017 Apple Inc. and the Swift project authors
// Licensed under Apache License v2.0 with Runtime Library Exception
//
// See http://swift.org/LICENSE.txt for license information
// See http://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
//
//===----------------------------------------------------------------------===//

import Basics
import PackageModel
import SPMTestSupport
import XCTest

final class TestDiscoveryTests: XCTestCase {
    func testBuild() async throws {
        try await fixture(name: "Miscellaneous/TestDiscovery/Simple") { fixturePath in
            let (stdout, _) = try await executeSwiftBuild(fixturePath)
            // in "swift build" build output goes to stdout
            XCTAssertMatch(stdout, .contains("Build complete!"))
        }
    }

    func testDiscovery() async throws {
        try await fixture(name: "Miscellaneous/TestDiscovery/Simple") { fixturePath in
            let (stdout, stderr) = try await executeSwiftTest(fixturePath)
            // in "swift test" build output goes to stderr
            XCTAssertMatch(stderr, .contains("Build complete!"))
            // in "swift test" test output goes to stdout
            XCTAssertMatch(stdout, .contains("Executed 3 tests"))
        }
    }

    func testNonStandardName() async throws {
        try await fixture(name: "Miscellaneous/TestDiscovery/hello world") { fixturePath in
            let (stdout, stderr) = try await executeSwiftTest(fixturePath)
            // in "swift test" build output goes to stderr
            XCTAssertMatch(stderr, .contains("Build complete!"))
            // in "swift test" test output goes to stdout
            XCTAssertMatch(stdout, .contains("Executed 1 test"))
        }
    }

    func testAsyncMethods() async throws {
        try await fixture(name: "Miscellaneous/TestDiscovery/Async") { fixturePath in
            let (stdout, stderr) = try await executeSwiftTest(fixturePath)
            // in "swift test" build output goes to stderr
            XCTAssertMatch(stderr, .contains("Build complete!"))
            // in "swift test" test output goes to stdout
            XCTAssertMatch(stdout, .contains("Executed 4 tests"))
        }
    }

    func testDiscovery_whenNoTests() async throws {
        #if os(macOS)
        try XCTSkipIf(true)
        #endif
        try await fixture(name: "Miscellaneous/TestDiscovery/NoTests") { fixturePath in
            let (stdout, stderr) = try await executeSwiftTest(fixturePath)
            // in "swift test" build output goes to stderr
            XCTAssertMatch(stderr, .contains("Build complete!"))
            // we are expecting that no warning is produced
            XCTAssertNoMatch(stderr, .contains("warning:"))
            // in "swift test" test output goes to stdout
            XCTAssertMatch(stdout, .contains("Executed 0 tests"))
        }
    }

    func testEntryPointOverride() async throws {
        #if os(macOS)
        try XCTSkipIf(true)
        #endif

        for name in SwiftModule.testEntryPointNames {
            try await fixture(name: "Miscellaneous/TestDiscovery/Simple") { fixturePath in
                let random = UUID().uuidString
                let manifestPath = fixturePath.appending(components: "Tests", name)
                try localFileSystem.writeFileContents(manifestPath, string: "print(\"\(random)\")")
                let (stdout, stderr) = try await executeSwiftTest(fixturePath)
                // in "swift test" build output goes to stderr
                XCTAssertMatch(stderr, .contains("Build complete!"))
                // in "swift test" test output goes to stdout
                XCTAssertNoMatch(stdout, .contains("Executed 1 test"))
                XCTAssertMatch(stdout, .contains(random))
            }
        }
    }

    func testEntryPointOverrideIgnored() async throws {
        #if os(macOS)
        try XCTSkipIf(true)
        #endif

        try await fixture(name: "Miscellaneous/TestDiscovery/Simple") { fixturePath in
            let manifestPath = fixturePath.appending(components: "Tests", SwiftModule.defaultTestEntryPointName)
            try localFileSystem.writeFileContents(manifestPath, string: "fatalError(\"should not be called\")")
            let (stdout, stderr) = try await executeSwiftTest(fixturePath, extraArgs: ["--enable-test-discovery"])
            // in "swift test" build output goes to stderr
            XCTAssertMatch(stderr, .contains("Build complete!"))
            // in "swift test" test output goes to stdout
            XCTAssertNoMatch(stdout, .contains("Executed 1 test"))
        }
    }

    func testTestExtensions() async throws {
        #if os(macOS)
        try XCTSkipIf(true)
        #endif
        try await fixture(name: "Miscellaneous/TestDiscovery/Extensions") { fixturePath in
            let (stdout, stderr) = try await executeSwiftTest(fixturePath)
            // in "swift test" build output goes to stderr
            XCTAssertMatch(stderr, .contains("Build complete!"))
            // in "swift test" test output goes to stdout
            XCTAssertMatch(stdout, .contains("SimpleTests1.testExample1"))
            XCTAssertMatch(stdout, .contains("SimpleTests1.testExample1_a"))
            XCTAssertMatch(stdout, .contains("SimpleTests2.testExample2"))
            XCTAssertMatch(stdout, .contains("SimpleTests2.testExample2_a"))
            XCTAssertMatch(stdout, .contains("SimpleTests4.testExample"))
            XCTAssertMatch(stdout, .contains("SimpleTests4.testExample1"))
            XCTAssertMatch(stdout, .contains("SimpleTests4.testExample2"))
            XCTAssertMatch(stdout, .contains("Executed 7 tests"))
        }
    }

    func testDeprecatedTests() async throws {
        #if os(macOS)
        try XCTSkipIf(true)
        #endif
        try await fixture(name: "Miscellaneous/TestDiscovery/Deprecation") { fixturePath in
            let (stdout, stderr) = try await executeSwiftTest(fixturePath)
            // in "swift test" test output goes to stdout
            XCTAssertMatch(stdout, .contains("Executed 2 tests"))
            XCTAssertNoMatch(stderr, .contains("is deprecated"))
        }
    }

    func testSubclassedTestClassTests() async throws {
        #if os(macOS)
        try XCTSkipIf(true)
        #endif
        try await fixture(name: "Miscellaneous/TestDiscovery/Subclass") { fixturePath in
            let (stdout, stderr) = try await executeSwiftTest(fixturePath)
            // in "swift test" build output goes to stderr
            XCTAssertMatch(stderr, .contains("Build complete!"))
            // in "swift test" test output goes to stdout
            XCTAssertMatch(stdout, .contains("Tests3.test11"))
            XCTAssertMatch(stdout, .contains("->Module1::Tests1::test11"))
            XCTAssertMatch(stdout, .contains("Tests3.test12"))
            XCTAssertMatch(stdout, .contains("->Module1::Tests1::test12"))
            XCTAssertMatch(stdout, .contains("Tests3.test13"))
            XCTAssertMatch(stdout, .contains("->Module1::Tests1::test13"))
            XCTAssertMatch(stdout, .contains("Tests3.test21"))
            XCTAssertMatch(stdout, .contains("->Module1::Tests2::test21"))
            XCTAssertMatch(stdout, .contains("Tests3.test22"))
            XCTAssertMatch(stdout, .contains("->Module1::Tests2::test22"))
            XCTAssertMatch(stdout, .contains("Tests3.test31"))
            XCTAssertMatch(stdout, .contains("->Module1::Tests3::test31"))
            XCTAssertMatch(stdout, .contains("Tests3.test32"))
            XCTAssertMatch(stdout, .contains("->Module1::Tests3::test32"))
            XCTAssertMatch(stdout, .contains("Tests3.test33"))
            XCTAssertMatch(stdout, .contains("->Module1::Tests3::test33"))

            XCTAssertMatch(stdout, .contains("->Module2::Tests1::test11"))
            XCTAssertMatch(stdout, .contains("->Module2::Tests1::test12"))
        }
    }
}