Conform RedisCommand to Equatable

Author: Mordil

Sources/RediStack/Commands/RedisCommand.swift

@@ -2,7 +2,7 @@
 //
 // This source file is part of the RediStack open source project
 //
-// Copyright (c) 2020 RediStack project authors
+// Copyright (c) 2020-2022 RediStack project authors
 // Licensed under Apache License v2.0
 //
 // See LICENSE.txt for license information
@@ -83,6 +83,16 @@ extension RedisCommand where ResultType == Void {
     }
 }
 
+
+// MARK: Equatable
+extension RedisCommand: Equatable {
+    public static func ==<T>(lhs: RedisCommand<T>, rhs: RedisCommand<T>) -> Bool {
+        return lhs.keyword == rhs.keyword && lhs.arguments == rhs.arguments
+    }
+}
+
+// MARK: - Common helpers
+
 extension RedisCommand {
     @usableFromInline
     internal static func _scan<T>(

Tests/RediStackTests/RedisCommandTests.swift

@@ -0,0 +1,36 @@
+//===----------------------------------------------------------------------===//
+//
+// This source file is part of the RediStack open source project
+//
+// Copyright (c) 2022 RediStack project authors
+// Licensed under Apache License v2.0
+//
+// See LICENSE.txt for license information
+// See CONTRIBUTORS.txt for the list of RediStack project authors
+//
+// SPDX-License-Identifier: Apache-2.0
+//
+//===----------------------------------------------------------------------===//
+
+import RediStack
+import XCTest
+
+final class RedisCommandTests: XCTestCase { }
+
+// MARK: Equatable Tests
+
+extension RedisCommandTests {
+    func test_equatableConformance() {
+        let first = RedisCommand<String>(keyword: #function, arguments: [])
+        let second = RedisCommand<String>(keyword: #function, arguments: [])
+        XCTAssertEqual(first, second)
+
+        let third = RedisCommand<String>(keyword: #function, arguments: [#line.convertedToRESPValue()])
+        XCTAssertNotEqual(first, third)
+        XCTAssertNotEqual(second, third)
+
+        let fourth = RedisCommand<String>(keyword: "buzz", arguments: [])
+        XCTAssertNotEqual(first, fourth)
+        XCTAssertNotEqual(third, fourth)
+    }
+}