Fix Swift compilation issue when using Bool secrets

Rakefile

@@ -14,7 +14,7 @@ task default: %i[spec rubocop]
 
 desc "Generates Swift source code and run its unit tests."
 task :test_swift do
-  sh("bin/arkana --config-filepath spec/fixtures/swift-tests.yml")
+  sh("bin/arkana --config-filepath spec/fixtures/swift-tests.yml --dotenv-filepath spec/fixtures/.env.fruitloops")
   Dir.chdir("tests/MySecrets") do
     sh("swift test")
   end

lib/arkana/templates/arkana.swift.erb

@@ -19,6 +19,11 @@ public enum <%= @namespace %> {
             element ^ cipher[offset % cipher.count]
         }, as: UTF8.self)
     }
+
+    static func decode(encoded: [UInt8], cipher: [UInt8]) -> Bool {
+        let stringValue: String = Self.decode(encoded: encoded, cipher: cipher)
+        return Bool(stringValue)!
+    }
 }
 
 public extension <%= @namespace %> {

lib/arkana/templates/arkana_tests.swift.erb

@@ -41,4 +41,24 @@ final class <%= @namespace %>Tests: XCTestCase {
         ]
         XCTAssertEqual(<%= @namespace %>.decode(encoded: encoded, cipher: salt), "<%= uuid_key %>")
     }
+
+    func test_decodeTrueBoolValue_shouldDecode() {
+<% bool_key = "true" %>
+<% secret = generate_test_secret(key: bool_key) %>
+        let encoded: [UInt8] = [
+            <%= secret.encoded_value %>
+
+        ]
+        XCTAssertTrue(<%= @namespace %>.decode(encoded: encoded, cipher: salt))
+    }
+
+    func test_decodeFalseBoolValue_shouldDecode() {
+<% bool_key = "false" %>
+<% secret = generate_test_secret(key: bool_key) %>
+        let encoded: [UInt8] = [
+            <%= secret.encoded_value %>
+
+        ]
+        XCTAssertFalse(<%= @namespace %>.decode(encoded: encoded, cipher: salt))
+    }
 }

spec/fixtures/.env.fruitloops

@@ -1 +1,5 @@
 DOTENV_KEY = "value from flavor dotenv"
+BoolAsStringTrueKey = "true"
+BoolAsStringFalseKey = "false"
+BoolAsBoolTrueKey = true
+BoolAsBoolFalseKey = false

spec/fixtures/swift-tests.yml

@@ -5,3 +5,8 @@ result_path: 'tests'
 swift_declaration_strategy: lazy var
 should_generate_unit_tests: true
 package_manager: spm
+global_secrets:
+- BoolAsStringTrueKey
+- BoolAsStringFalseKey
+- BoolAsBoolTrueKey
+- BoolAsBoolFalseKey