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StencilSpecs/VariableSpec.swift

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+import Foundation
+import Spectre
+import Stencil
+
+
+@objc class Object : NSObject {
+  let title = "Hello World"
+}
+
+
+describe("Variable") {
+  let context = Context(dictionary: [
+    "name": "Kyle",
+    "contacts": ["Katie", "Carlton"],
+    "profiles": [
+      "github": "kylef",
+    ],
+    "object": Object(),
+  ])
+
+  $0.it("can resolve a string literal with double quotes") {
+    let variable = Variable("\"name\"")
+    let result = variable.resolve(context) as? String
+    try expect(result) == "name"
+  }
+
+  $0.it("can resolve a string literal with single quotes") {
+    let variable = Variable("'name'")
+    let result = variable.resolve(context) as? String
+    try expect(result) == "name"
+  }
+
+  $0.it("can resolve a string variable") {
+    let variable = Variable("name")
+    let result = variable.resolve(context) as? String
+    try expect(result) == "Kyle"
+  }
+
+  $0.it("can resolve an item from a dictionary") {
+    let variable = Variable("profiles.github")
+    let result = variable.resolve(context) as? String
+    try expect(result) == "kylef"
+  }
+
+  $0.it("can resolve an item from an array via it's index") {
+    let variable = Variable("contacts.0")
+    let result = variable.resolve(context) as? String
+    try expect(result) == "Katie"
+  }
+
+  $0.it("can resolve the first item from an array") {
+    let variable = Variable("contacts.first")
+    let result = variable.resolve(context) as? String
+    try expect(result) == "Katie"
+  }
+
+  $0.it("can resolve the last item from an array") {
+    let variable = Variable("contacts.last")
+    let result = variable.resolve(context) as? String
+    try expect(result) == "Carlton"
+  }
+
+  $0.it("can resolve a value via KVO") {
+    let variable = Variable("object.title")
+    let result = variable.resolve(context) as? String
+    try expect(result) == "Hello World"
+  }
+}