Update to Spectre 0.9.0 (#247)

* update to Spectre 0.9.0

* fix variable spec tests

* fix flatMap warning

* updated CHANGELOG

Tests/StencilTests/ContextSpec.swift

@@ -1,80 +1,84 @@
+import XCTest
 import Spectre
 @testable import Stencil
 
 
-func testContext() {
-  describe("Context") {
-    var context: Context!
+class ContextTests: XCTestCase {
+  
+  func testContext() {
+    describe("Context") {
+      var context: Context!
 
-    $0.before {
-      context = Context(dictionary: ["name": "Kyle"])
-    }
+      $0.before {
+        context = Context(dictionary: ["name": "Kyle"])
+      }
 
-    $0.it("allows you to get a value via subscripting") {
-      try expect(context["name"] as? String) == "Kyle"
-    }
-
-    $0.it("allows you to set a value via subscripting") {
-      context["name"] = "Katie"
-
-      try expect(context["name"] as? String) == "Katie"
-    }
-
-    $0.it("allows you to remove a value via subscripting") {
-      context["name"] = nil
-
-      try expect(context["name"]).to.beNil()
-    }
-
-    $0.it("allows you to retrieve a value from a parent") {
-      try context.push {
+      $0.it("allows you to get a value via subscripting") {
         try expect(context["name"] as? String) == "Kyle"
       }
-    }
 
-    $0.it("allows you to override a parent's value") {
-      try context.push {
+      $0.it("allows you to set a value via subscripting") {
         context["name"] = "Katie"
+
         try expect(context["name"] as? String) == "Katie"
       }
-    }
 
-    $0.it("allows you to pop to restore previous state") {
-      context.push {
-        context["name"] = "Katie"
-      }
-
-      try expect(context["name"] as? String) == "Kyle"
-    }
-
-    $0.it("allows you to remove a parent's value in a level") {
-      try context.push {
+      $0.it("allows you to remove a value via subscripting") {
         context["name"] = nil
+
         try expect(context["name"]).to.beNil()
       }
 
-      try expect(context["name"] as? String) == "Kyle"
-    }
-
-    $0.it("allows you to push a dictionary and run a closure then restoring previous state") {
-      var didRun = false
-
-      try context.push(dictionary: ["name": "Katie"]) {
-        didRun = true
-        try expect(context["name"] as? String) == "Katie"
+      $0.it("allows you to retrieve a value from a parent") {
+        try context.push {
+          try expect(context["name"] as? String) == "Kyle"
+        }
       }
 
-      try expect(didRun).to.beTrue()
-      try expect(context["name"] as? String) == "Kyle"
-    }
+      $0.it("allows you to override a parent's value") {
+        try context.push {
+          context["name"] = "Katie"
+          try expect(context["name"] as? String) == "Katie"
+        }
+      }
 
-    $0.it("allows you to flatten the context contents") {
-      try context.push(dictionary: ["test": "abc"]) {
-        let flattened = context.flatten()
+      $0.it("allows you to pop to restore previous state") {
+        context.push {
+          context["name"] = "Katie"
+        }
 
-        try expect(flattened.count) == 2
-        try expect(flattened["name"] as? String) == "Kyle"
-        try expect(flattened["test"] as? String) == "abc"
+        try expect(context["name"] as? String) == "Kyle"
+      }
+
+      $0.it("allows you to remove a parent's value in a level") {
+        try context.push {
+          context["name"] = nil
+          try expect(context["name"]).to.beNil()
+        }
+
+        try expect(context["name"] as? String) == "Kyle"
+      }
+
+      $0.it("allows you to push a dictionary and run a closure then restoring previous state") {
+        var didRun = false
+
+        try context.push(dictionary: ["name": "Katie"]) {
+          didRun = true
+          try expect(context["name"] as? String) == "Katie"
+        }
+
+        try expect(didRun).to.beTrue()
+        try expect(context["name"] as? String) == "Kyle"
+      }
+
+      $0.it("allows you to flatten the context contents") {
+        try context.push(dictionary: ["test": "abc"]) {
+          let flattened = context.flatten()
+
+          try expect(flattened.count) == 2
+          try expect(flattened["name"] as? String) == "Kyle"
+          try expect(flattened["test"] as? String) == "abc"
+        }
       }
     }
   }