From 140d34a0551ddd17de643462d7a5111be9d5d803 Mon Sep 17 00:00:00 2001
From: Martin Petrov <357181+mpetrov@users.noreply.github.com>
Date: Wed, 6 Mar 2019 11:15:08 -0500
Subject: [PATCH] Add public factory methods for CallResult. (#394)

* Add public factory methods for CallResult.

This enables instantiating CallResult structs for test stubs.

* Also set metadata.
---
 Sources/SwiftGRPC/Core/CallResult.swift | 29 +++++++++++++++++++++++++
 1 file changed, 29 insertions(+)

diff --git a/Sources/SwiftGRPC/Core/CallResult.swift b/Sources/SwiftGRPC/Core/CallResult.swift
index 3972acd10..697b17e6d 100644
--- a/Sources/SwiftGRPC/Core/CallResult.swift
+++ b/Sources/SwiftGRPC/Core/CallResult.swift
@@ -26,6 +26,35 @@ public struct CallResult: CustomStringConvertible {
   public let resultData: Data?
   public let initialMetadata: Metadata?
   public let trailingMetadata: Metadata?
+
+  public static func error(
+    statusCode: StatusCode = .unknown,
+    statusMessage: String? = nil,
+    initialMetadata: Metadata? = nil,
+    trailingMetadata: Metadata? = nil
+  ) -> CallResult {
+    return CallResult(
+      success: false,
+      statusCode: statusCode,
+      statusMessage: statusMessage,
+      resultData: nil,
+      initialMetadata: initialMetadata,
+      trailingMetadata: trailingMetadata)
+  }
+
+  public static func success(
+    resultData: Data,
+    initialMetadata: Metadata? = nil,
+    trailingMetadata: Metadata? = nil
+  ) -> CallResult {
+    return CallResult(
+      success: true,
+      statusCode: .ok,
+      statusMessage: "OK",
+      resultData: resultData,
+      initialMetadata: initialMetadata,
+      trailingMetadata: trailingMetadata)
+  }
   
   init(_ op: OperationGroup) {
     success = op.success