Add OpenVPNCertificate files and their tests to the project

OpenVPN Adapter Tests/OpenVPNCertificateTests.swift

@@ -0,0 +1,43 @@
+//
+//  OpenVPNCertificateTests.swift
+//  OpenVPN Adapter
+//
+//  Created by Sergey Abramchuk on 06.09.17.
+//
+//
+
+import XCTest
+@testable import OpenVPNAdapter
+
+class OpenVPNCertificateTests: XCTestCase {
+
+    override func setUp() {
+        super.setUp()
+        // Put setup code here. This method is called before the invocation of each test method in the class.
+    }
+    
+    override func tearDown() {
+        // Put teardown code here. This method is called after the invocation of each test method in the class.
+        super.tearDown()
+    }
+
+    func testCertificateFromPEM() {
+        guard
+            let caURL = Bundle.current.url(forResource: "ca", withExtension: "crt"),
+            let caData = try? Data(contentsOf: caURL)
+//            let caContent = try? String(contentsOf: caURL, encoding: .utf8).cString(using: .utf8)
+        else {
+            XCTFail("")
+            return
+        }
+        
+        let certificate: OpenVPNCertificate
+        do {
+            certificate = try OpenVPNCertificate(pem: caData)
+        } catch {
+            XCTFail(error.localizedDescription)
+            return
+        }
+    }
+
+}

OpenVPN Adapter Tests/Resources/ca.crt

@@ -0,0 +1,17 @@
+-----BEGIN CERTIFICATE-----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+-----END CERTIFICATE-----

OpenVPN Adapter Tests/Resources/ca.key

@@ -0,0 +1,15 @@
+-----BEGIN RSA PRIVATE KEY-----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+-----END RSA PRIVATE KEY-----