chore: update SwiftArgumentParser lib to 0.4.3

Makefile

@@ -3,15 +3,19 @@ bindir = $(prefix)/bin
 libdir = $(prefix)/lib
 
 build:
+	# disabling the sandbox is necessary for installation with Homebrew
 	swift build -c release --disable-sandbox
 
 install: build
 	install ".build/release/cowsay" "$(bindir)"
 
+test:
+	swift test
+
 uninstall:
 	rm -rf "$(bindir)/cowsay"
 
 clean:
 	rm -rf .build
 
-.PHONY: build install uninstall clean
+.PHONY: build install test uninstall clean

Package.resolved

@@ -6,8 +6,8 @@
         "repositoryURL": "https://github.com/apple/swift-argument-parser",
         "state": {
           "branch": null,
-          "revision": "3d79b2b5a2e5af52c14e462044702ea7728f5770",
-          "version": "0.1.0"
+          "revision": "986d191f94cec88f6350056da59c2e59e83d1229",
+          "version": "0.4.3"
         }
       }
     ]

Package.swift

@@ -9,7 +9,7 @@ let package = Package(
     .executable(name: "cowsay", targets: ["cowsay"])
   ],
   dependencies: [
-    .package(url: "https://github.com/apple/swift-argument-parser", .upToNextMinor(from: "0.1.0"))
+    .package(url: "https://github.com/apple/swift-argument-parser", from: "0.4.3")
   ],
   targets: [
     .target(name: "cowsay", dependencies: ["ArgumentParser"]),

Sources/cowsay/main.swift

@@ -8,29 +8,26 @@ import Foundation
 
 struct Cli: ParsableCommand {
 
-    static let configuration = CommandConfiguration(abstract: "Cowsay muuhhhh")
+    static let configuration = CommandConfiguration(
+        abstract: "Cowsay muuhhhh",
+        version: "0.0.2"
+    )
 
     // MARK: - Arguments
 
     @Argument(help: "The cow should say something")
-    var message: [String]
+    var message: [String] = ["muuhhhh"]
 
     // MARK: - Options
 
-    @Option(name: .shortAndLong,
-    default: "oo",
-    help: "Change cow's eyes")
-    var eyes: String
+    @Option(name: .shortAndLong, help: "Change cow's eyes")
+    var eyes: String = "oo"
 
-    @Option(name: .shortAndLong,
-    default: "  ",
-    help: "Change cow's tongue")
-    var tongue: String
+    @Option(name: .shortAndLong, help: "Change cow's tongue")
+    var tongue: String = "  "
 
-    @Option(name: .long,
-    default: Example(name: CowNames.example.rawValue).name,
-    help: "Select, by name, one of cows included in the package")
-    var name: String
+    @Option(name: .long, help: "Select, by name, one of cows included in the package")
+    var name: String = Example(name: CowNames.example.rawValue).name
 
     // MARK: - Init
 

Tests/cowsay/cowsayTests.swift

@@ -1,36 +1,14 @@
 import XCTest
 
-import class Foundation.Bundle
-
+@available(macOS 10.13, *)
 final class cowsayTests: XCTestCase {
-  func testExample() throws {
-    // This is an example of a functional test case.
-    // Use XCTAssert and related functions to verify your tests produce the correct
-    // results.
-
-    // Some of the APIs that we use below are available in macOS 10.13 and above.
-    guard #available(macOS 10.13, *) else {
-      return
-    }
-
-    let fooBinary = productsDirectory.appendingPathComponent("cowsay")
-
-    let process = Process()
-    process.executableURL = fooBinary
 
-    let pipe = Pipe()
-    process.standardOutput = pipe
-
-    try process.run()
-    process.waitUntilExit()
-
-    let data = pipe.fileHandleForReading.readDataToEndOfFile()
-    let result = String(data: data, encoding: .utf8)
-
-    let expected = """
-       __
-      <  >
-       --
+    func test_ShouldSayDefault_WhenMessageParamIsOmitted() throws {
+        let result = try runCommand()
+        let expected = """
+       _________
+      < muuhhhh >
+       ---------
               \\   ^__^
                \\  (oo\\________
                   (__)\\       )\\/\\
@@ -39,22 +17,23 @@ final class cowsayTests: XCTestCase {
       \n
       """
 
-    XCTAssertEqual(result, expected)
-  }
+        XCTAssertEqual(result, expected)
+    }
 
-  /// Returns path to the built products directory.
-  var productsDirectory: URL {
-    #if os(macOS)
-      for bundle in Bundle.allBundles where bundle.bundlePath.hasSuffix(".xctest") {
-        return bundle.bundleURL.deletingLastPathComponent()
-      }
-      fatalError("couldn't find the products directory")
-    #else
-      return Bundle.main.bundleURL
-    #endif
-  }
+    func test_ShouldSayCobaia_WhenMessageParamIsCobaia() throws {
+        let result = try runCommand(with: ["cobaia"])
+        let expected = """
+       ________
+      < cobaia >
+       --------
+              \\   ^__^
+               \\  (oo\\________
+                  (__)\\       )\\/\\
+                      ||----w |
+                      ||     ||
+      \n
+      """
 
-  static var allTests = [
-    ("testExample", testExample),
-  ]
+        XCTAssertEqual(result, expected)
+    }
 }

Tests/helpers/TestHelpers.swift

@@ -0,0 +1,42 @@
+//
+//  File.swift
+//  
+//
+//  Created by Leandro Nunes Fantinatto on 20/07/21.
+//
+
+import XCTest
+import class Foundation.Bundle
+
+extension XCTest {
+
+    func runCommand(with arguments: [String]? = []) throws -> String {
+        let fooBinary = productsDirectory.appendingPathComponent("cowsay")
+
+        let process = Process()
+        process.executableURL = fooBinary
+        process.arguments = arguments
+
+        let pipe = Pipe()
+        process.standardOutput = pipe
+
+        try process.run()
+        process.waitUntilExit()
+
+        let data = pipe.fileHandleForReading.readDataToEndOfFile()
+        let result = try XCTUnwrap(String(data: data, encoding: .utf8))
+        return result
+    }
+
+    /// Returns path to the built products directory.
+    var productsDirectory: URL {
+        #if os(macOS)
+        for bundle in Bundle.allBundles where bundle.bundlePath.hasSuffix(".xctest") {
+            return bundle.bundleURL.deletingLastPathComponent()
+        }
+        fatalError("couldn't find the products directory")
+        #else
+        return Bundle.main.bundleURL
+        #endif
+    }
+}