Add Package.swift and move files around

Tests/ContextSpec.swift

@@ -0,0 +1,65 @@
+import Spectre
+import Stencil
+
+
+describe("Context") {
+  var context: Context!
+
+  $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") {
+    context.push()
+
+    try expect(context["name"] as? String) == "Kyle"
+  }
+
+  $0.it("allows you to override a parent's value") {
+    context.push()
+    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"
+    context.pop()
+
+    try expect(context["name"] as? String) == "Kyle"
+  }
+
+  $0.it("allows you to push a dictionary onto the stack") {
+    context.push(["name": "Katie"])
+    try expect(context["name"] as? String) == "Katie"
+  }
+
+  $0.it("allows you to push a dictionary and run a closure then restoring previous state") {
+    var didRun = false
+
+    try context.push(["name": "Katie"]) {
+      didRun = true
+      try expect(context["name"] as? String) == "Katie"
+    }
+
+    try expect(didRun).to.beTrue()
+    try expect(context["name"] as? String) == "Kyle"
+  }
+}