From f5f65e0b2ee57d800a3961f941f72f333165963e Mon Sep 17 00:00:00 2001
From: Javier Cicchelli <javier@rock-n-code.com>
Date: Sat, 6 May 2023 23:53:51 +0200
Subject: [PATCH] Implemented the "isNotEmpty" property in the Collection+Empty
 extension.

---
 .../Core/Extensions/Collection+Empty.swift    | 20 +++++
 .../Extensions/Collection+EmptyTests.swift    | 75 +++++++++++++++++++
 2 files changed, 95 insertions(+)
 create mode 100644 Sources/Core/Extensions/Collection+Empty.swift
 create mode 100644 Tests/Core/Cases/Extensions/Collection+EmptyTests.swift

diff --git a/Sources/Core/Extensions/Collection+Empty.swift b/Sources/Core/Extensions/Collection+Empty.swift
new file mode 100644
index 0000000..0ec828b
--- /dev/null
+++ b/Sources/Core/Extensions/Collection+Empty.swift
@@ -0,0 +1,20 @@
+//===----------------------------------------------------------------------===//
+//
+// This source file is part of the SwiftLibs open source project
+//
+// Copyright (c) 2023 Röck+Cöde VoF. and the SwiftLibs project authors
+// Licensed under the EUPL 1.2 or later.
+//
+// See LICENSE.txt for license information
+// See CONTRIBUTORS.txt for the list of SwiftLibs project authors
+//
+//===----------------------------------------------------------------------===//
+
+public extension Collection {
+    
+    // MARK: Properties
+    
+    /// A Boolean value indicating whether a collection is not empty.
+    var isNotEmpty: Bool { !isEmpty }
+
+}
diff --git a/Tests/Core/Cases/Extensions/Collection+EmptyTests.swift b/Tests/Core/Cases/Extensions/Collection+EmptyTests.swift
new file mode 100644
index 0000000..feb518c
--- /dev/null
+++ b/Tests/Core/Cases/Extensions/Collection+EmptyTests.swift
@@ -0,0 +1,75 @@
+//===----------------------------------------------------------------------===//
+//
+// This source file is part of the SwiftLibs open source project
+//
+// Copyright (c) 2023 Röck+Cöde VoF. and the SwiftLibs project authors
+// Licensed under the EUPL 1.2 or later.
+//
+// See LICENSE.txt for license information
+// See CONTRIBUTORS.txt for the list of SwiftLibs project authors
+//
+//===----------------------------------------------------------------------===//
+
+import Core
+import XCTest
+
+final class Collection_EmptyTests: XCTestCase {
+
+    // MARK: Properties
+    
+    private var collection: (any Collection)!
+    private var result: Bool!
+
+    // MARK: Tests
+    
+    func test_isNotEmpty_whenAnArrayIsEmpty() {
+        // GIVEN
+        collection = [Int]()
+        
+        // WHEN
+        result = collection.isNotEmpty
+        
+        // THEN
+        XCTAssertFalse(result)
+    }
+    
+    func test_isNotEmpty_whenAnArrayIsNotEmpty() {
+        // GIVEN
+        collection = [0, 1, 2, 3, 4, 5]
+        
+        // WHEN
+        result = collection.isNotEmpty
+        
+        // THEN
+        XCTAssertTrue(result)
+    }
+    
+    func test_isNotEmpty_whenADictionaryIsEmpty() {
+        // GIVEN
+        collection = [String: Int]()
+        
+        // WHEN
+        result = collection.isNotEmpty
+        
+        // THEN
+        XCTAssertFalse(result)
+    }
+    
+    func test_isNotEmpty_whenADictionaryIsNotEmpty() {
+        // GIVEN
+        collection = [
+            "something": 0,
+            "else": 1,
+            "goes": 2,
+            "in": 3,
+            "here": 4
+        ]
+        
+        // WHEN
+        result = collection.isNotEmpty
+        
+        // THEN
+        XCTAssertTrue(result)
+    }
+
+}