feat: Adds createProject and createJson tests for playbook-client.

Sources/PlaybookClient/PlaybookClient+RunPlaybook.swift

@@ -28,9 +28,16 @@ extension PlaybookClient.RunPlaybook.BuildOptions {
 
 extension PlaybookClient.RunPlaybook.CreateOptions {
 
-  func run() async throws {
+  func run(encoder jsonEncoder: JSONEncoder?) async throws {
     try await shared.run { arguments, configuration in
-      let json = try createJSONData(configuration: configuration)
+      let jsonData = try createJSONData(
+        configuration: configuration,
+        encoder: jsonEncoder
+      )
+
+      guard let json = String(data: jsonData, encoding: .utf8) else {
+        throw PlaybookClientError.encodingError
+      }
 
       arguments.append(contentsOf: [
         "--tags", "setup-project",
@@ -130,17 +137,20 @@ public extension PlaybookClient.RunPlaybook {
 //       want the output to be `prettyPrinted` or anything, unless we're running
 //       tests, so we use a supplied json encoder.
 //
-extension PlaybookClient.RunPlaybook.CreateOptions {
+@_spi(Internal)
+public extension PlaybookClient.RunPlaybook.CreateOptions {
 
   func createJSONData(
     configuration: Configuration,
-    encoder: JSONEncoder = .init()
+    encoder: JSONEncoder?
   ) throws -> Data {
     @Dependency(\.logger) var logger
 
-    let templateDir = template.directory ?? configuration.template.directory
-    let templateRepo = template.url ?? configuration.template.url
-    let version = template.version ?? configuration.template.version
+    let encoder = encoder ?? jsonEncoder
+
+    let templateDir = template?.directory ?? configuration.template.directory
+    let templateRepo = template?.url ?? configuration.template.url
+    let version = template?.version ?? configuration.template.version
 
     logger.debug("""
       (\(useLocalTemplateDirectory), \(String(describing: templateDir)), \(String(describing: templateRepo)))
@@ -203,3 +213,9 @@ private struct TemplateRepo: Encodable {
     let version: String
   }
 }
+
+private let jsonEncoder: JSONEncoder = {
+  let encoder = JSONEncoder()
+  encoder.outputFormatting = [.withoutEscapingSlashes, .sortedKeys]
+  return encoder
+}()