Extract MockDependencyGraph to separate file

Author: mattt

Sources/SPMTestSupport/MockDependencyGraph.swift

@@ -0,0 +1,53 @@
+/*
+ This source file is part of the Swift.org open source project
+
+ Copyright (c) 2014 - 2017 Apple Inc. and the Swift project authors
+ Licensed under Apache License v2.0 with Runtime Library Exception
+
+ See http://swift.org/LICENSE.txt for license information
+ See http://swift.org/CONTRIBUTORS.txt for Swift project authors
+ */
+import XCTest
+
+import PackageGraph
+import TSCBasic
+import struct TSCUtility.Version
+
+public struct MockDependencyGraph {
+    public let name: String
+    public let constraints: [MockPackageConstraint]
+    public let containers: [MockPackageContainer]
+    public let result: [String: Version]
+
+    public init(_ json: JSON) {
+        guard case .dictionary(let dict) = json else { fatalError() }
+        guard case .string(let name)? = dict["name"] else { fatalError() }
+        guard case .array(let constraints)? = dict["constraints"] else { fatalError() }
+        guard case .array(let containers)? = dict["containers"] else { fatalError() }
+        guard case .dictionary(let result)? = dict["result"] else { fatalError() }
+
+        self.result = Dictionary(uniqueKeysWithValues: result.map { value in
+            let (container, version) = value
+            guard case .string(let str) = version else { fatalError() }
+            return (container.lowercased(), Version(string: str)!)
+        })
+        self.name = name
+        self.constraints = constraints.map(PackageContainerConstraint.init(json:))
+        self.containers = containers.map(MockPackageContainer.init(json:))
+    }
+
+    public func checkResult(
+        _ output: [(container: String, version: Version)],
+        file: StaticString = #file,
+        line: UInt = #line
+    ) {
+        var result = self.result
+        for item in output {
+            XCTAssertEqual(result[item.container], item.version, file: file, line: line)
+            result[item.container] = nil
+        }
+        if !result.isEmpty {
+            XCTFail("Unchecked containers: \(result)", file: file, line: line)
+        }
+    }
+}

Sources/SPMTestSupport/MockDependencyResolver.swift

@@ -211,42 +211,3 @@ public struct MockPackageContainerProvider: PackageContainerProvider {
         }
     }
 }
-
-public struct MockDependencyGraph {
-    public let name: String
-    public let constraints: [MockPackageConstraint]
-    public let containers: [MockPackageContainer]
-    public let result: [String: Version]
-
-    public init(_ json: JSON) {
-        guard case .dictionary(let dict) = json else { fatalError() }
-        guard case .string(let name)? = dict["name"] else { fatalError() }
-        guard case .array(let constraints)? = dict["constraints"] else { fatalError() }
-        guard case .array(let containers)? = dict["containers"] else { fatalError() }
-        guard case .dictionary(let result)? = dict["result"] else { fatalError() }
-
-        self.result = Dictionary(uniqueKeysWithValues: result.map { value in
-            let (container, version) = value
-            guard case .string(let str) = version else { fatalError() }
-            return (container.lowercased(), Version(string: str)!)
-        })
-        self.name = name
-        self.constraints = constraints.map(PackageContainerConstraint.init(json:))
-        self.containers = containers.map(MockPackageContainer.init(json:))
-    }
-
-    public func checkResult(
-        _ output: [(container: String, version: Version)],
-        file: StaticString = #file,
-        line: UInt = #line
-    ) {
-        var result = self.result
-        for item in output {
-            XCTAssertEqual(result[item.container], item.version, file: file, line: line)
-            result[item.container] = nil
-        }
-        if !result.isEmpty {
-            XCTFail("Unchecked containers: \(result)", file: file, line: line)
-        }
-    }
-}