Merge pull request #38 from bow-swift/nef_testing

`nef` boilerplate for testing

template/Podfile

@@ -4,7 +4,6 @@ target '${POD_NAME}' do
 
   pod "Bow", "~> 0.0.0"
   pod "BowEffects", "~> 0.0.0"
-  pod "BowResult", "~> 0.0.0"
   pod "BowRx", "~> 0.0.0"
   pod "BowBrightFutures", "~> 0.0.0"
   pod "BowOptics", "~> 0.0.0"

template/ios/PROJECT.playground/Sources/NefTest.swift

@@ -0,0 +1,47 @@
+import Foundation
+import XCTest
+
+public extension Nef {
+
+    static func run<T: XCTestCase>(testCase class: T.Type) {
+        startTestObserver()
+        T.defaultTestSuite.run()
+    }
+
+    static private func startTestObserver() {
+        _ = testObserverInstalled
+    }
+
+    static private var testObserverInstalled = { () -> NefTestFailObserver in
+        let testObserver = NefTestFailObserver()
+        XCTestObservationCenter.shared.addTestObserver(testObserver)
+        return testObserver
+    }()
+}
+
+// MARK: enrich the output for XCTest
+fileprivate class NefTestFailObserver: NSObject, XCTestObservation {
+
+    private var numberOfFailedTests = 0
+
+    func testSuiteWillStart(_ testSuite: XCTestSuite) {
+        numberOfFailedTests = 0
+    }
+
+    func testSuiteDidFinish(_ testSuite: XCTestSuite) {
+        if numberOfFailedTests > 0 {
+            print("💢 Test Suite '\(testSuite.name)' finished with \(numberOfFailedTests) failed \(numberOfFailedTests > 1 ? "tests" : "test").")
+        } else {
+            print("🔅 Test Suite '\(testSuite.name)' finished successfully.")
+        }
+    }
+
+    func testCase(_ testCase: XCTestCase,
+                  didFailWithDescription description: String,
+                  inFile filePath: String?,
+                  atLine lineNumber: Int) {
+
+        numberOfFailedTests += 1
+        print("❗️Test Fail '\(testCase.name)':\(UInt(lineNumber)): \(description.description)")
+    }
+}

template/osx/PROJECT.playground/Sources/NefTest.swift

@@ -0,0 +1,49 @@
+import Foundation
+import XCTest
+
+public enum Nef {}
+
+public extension Nef {
+
+    static func run<T: XCTestCase>(testCase class: T.Type) {
+        startTestObserver()
+        T.defaultTestSuite.run()
+    }
+
+    static private func startTestObserver() {
+        _ = testObserverInstalled
+    }
+
+    static private var testObserverInstalled = { () -> NefTestFailObserver in
+        let testObserver = NefTestFailObserver()
+        XCTestObservationCenter.shared.addTestObserver(testObserver)
+        return testObserver
+    }()
+}
+
+// MARK: enrich the output for XCTest
+fileprivate class NefTestFailObserver: NSObject, XCTestObservation {
+
+    private var numberOfFailedTests = 0
+
+    func testSuiteWillStart(_ testSuite: XCTestSuite) {
+        numberOfFailedTests = 0
+    }
+
+    func testSuiteDidFinish(_ testSuite: XCTestSuite) {
+        if numberOfFailedTests > 0 {
+            print("💢 Test Suite '\(testSuite.name)' finished with \(numberOfFailedTests) failed \(numberOfFailedTests > 1 ? "tests" : "test").")
+        } else {
+            print("🔅 Test Suite '\(testSuite.name)' finished successfully.")
+        }
+    }
+
+    func testCase(_ testCase: XCTestCase,
+                  didFailWithDescription description: String,
+                  inFile filePath: String?,
+                  atLine lineNumber: Int) {
+
+        numberOfFailedTests += 1
+        print("❗️Test Fail '\(testCase.name)':\(UInt(lineNumber)): \(description.description)")
+    }
+}