Add JSONWrapperTests

Author: onmyway133

Tests/iOS/Tests/Library/JSONWrapperTests.swift

@@ -0,0 +1,47 @@
+import XCTest
+import Cache
+
+final class JSONWrapperTests: XCTestCase {
+  func testJSONDictionary() {
+    let json: JSONDictionary = [
+      "name": "John Snow",
+      "location": "Winterfell"
+    ]
+
+    let wrapper = JSONDictionaryWrapper(jsonDictionary: json)
+
+    let data = try! JSONEncoder().encode(wrapper)
+    let decodedWrapper = try! JSONDecoder().decode(JSONDictionaryWrapper.self, from: data)
+
+    XCTAssertEqual(
+      NSDictionary(dictionary: decodedWrapper.jsonDictionary),
+      NSDictionary(dictionary: json)
+    )
+  }
+
+  func testJSONArray() {
+    let json: JSONArray = [
+      [
+        "name": "John Snow",
+        "location": "Winterfell"
+      ],
+      [
+        "name": "Daenerys Targaryen",
+        "location": "Dragonstone"
+      ]
+    ]
+
+    let wrapper = JSONArrayWrapper(jsonArray: json)
+
+    let data = try! JSONEncoder().encode(wrapper)
+    let decodedWrapper = try! JSONDecoder().decode(JSONArrayWrapper.self, from: data)
+
+    zip(json, decodedWrapper.jsonArray).forEach {
+      XCTAssertEqual(
+        NSDictionary(dictionary: $0),
+        NSDictionary(dictionary: $1)
+      )
+    }
+  }
+}
+