feat: Added ODPManager implementation (#322)

* Initial ODP Manager

* Outline unit tests

* WIP Unit tests + changes to CUD

* Implement fetch, identify, and send events with Builder pattern

* WIP Fixing final unit test

* Finish unit tests

* Add documentation

* Lint fixes

* Pull request code revisions + additional unit tests

* Lint fixes

* Change to use string array over List

* Clean usings

* Add new OdpConfig test

* Small refactors

* Pull request code review changes

* Code review changes

* Mark _odpConfig as volatile

* Return `volatile` denotation

OptimizelySDK.Tests/OdpTests/OdpConfigTest.cs

@@ -0,0 +1,118 @@
+/* 
+ * Copyright 2022 Optimizely
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+using NUnit.Framework;
+using OptimizelySDK.Odp;
+using System.Collections.Generic;
+
+namespace OptimizelySDK.Tests.OdpTests
+{
+    [TestFixture]
+    public class OdpConfigTest
+    {
+        private const string API_KEY = "UrAp1k3Y";
+        private const string API_HOST = "https://not-real-odp-host.example.com";
+
+        private static readonly List<string> segmentsToCheck = new List<string>
+        {
+            "UPPER-CASE-AUDIENCE",
+            "lower-case-audience",
+        };
+
+        private readonly OdpConfig _goodOdpConfig =
+            new OdpConfig(API_KEY, API_HOST, segmentsToCheck);
+
+        [Test]
+        public void ShouldNotEqualWithNullInApiKey()
+        {
+            var nullKeyConfig =
+                new OdpConfig(null, API_HOST, segmentsToCheck);
+
+            Assert.IsFalse(_goodOdpConfig.Equals(nullKeyConfig));
+            Assert.IsFalse(nullKeyConfig.Equals(_goodOdpConfig));
+        }
+
+        [Test]
+        public void ShouldNotEqualWithNullInApiHost()
+        {
+            var nullHostConfig =
+                new OdpConfig(API_KEY, null, segmentsToCheck);
+
+            Assert.IsFalse(_goodOdpConfig.Equals(nullHostConfig));
+            Assert.IsFalse(nullHostConfig.Equals(_goodOdpConfig));
+        }
+
+        [Test]
+        public void ShouldNotEqualWithNullSegmentsCollection()
+        {
+            var nullSegmentsConfig =
+                new OdpConfig(API_KEY, API_HOST, null);
+
+            Assert.IsFalse(_goodOdpConfig.Equals(nullSegmentsConfig));
+            Assert.IsFalse(nullSegmentsConfig.Equals(_goodOdpConfig));
+        }
+
+        [Test]
+        public void ShouldNotEqualWithSegmentsWithNull()
+        {
+            var segmentsWithANullValue =
+                new OdpConfig(API_KEY, API_HOST, new List<string>
+                {
+                    "good-value",
+                    null,
+                });
+
+            Assert.IsFalse(_goodOdpConfig.Equals(segmentsWithANullValue));
+            Assert.IsFalse(segmentsWithANullValue.Equals(_goodOdpConfig));
+        }
+
+        [Test]
+        public void ShouldNotEqualIfCaseDifferenceInApiKey()
+        {
+            const string CASE_DIFFERENCE_IN_FIRST_LETTER_OF_API_KEY = "urAp1k3Y";
+            var apiKeyCaseDifferentConfig =
+                new OdpConfig(CASE_DIFFERENCE_IN_FIRST_LETTER_OF_API_KEY, API_HOST,
+                    segmentsToCheck);
+
+            Assert.IsFalse(_goodOdpConfig.Equals(apiKeyCaseDifferentConfig));
+            Assert.IsFalse(apiKeyCaseDifferentConfig.Equals(_goodOdpConfig));
+        }
+
+        [Test]
+        public void ShouldEqualDespiteCaseDifferenceInApiHost()
+        {
+            var apiHostUpperCasedConfig =
+                new OdpConfig(API_KEY, API_HOST.ToUpper(), segmentsToCheck);
+
+            Assert.IsTrue(_goodOdpConfig.Equals(apiHostUpperCasedConfig));
+            Assert.IsTrue(apiHostUpperCasedConfig.Equals(_goodOdpConfig));
+        }
+
+        [Test]
+        public void ShouldEqualDespiteCaseDifferenceInSegments()
+        {
+            var wrongCaseSegmentsToCheck = new List<string>
+            {
+                "upper-case-audience",
+                "LOWER-CASE-AUDIENCE",
+            };
+            var wrongCaseConfig = new OdpConfig(API_KEY, API_HOST, wrongCaseSegmentsToCheck);
+
+            Assert.IsTrue(_goodOdpConfig.Equals(wrongCaseConfig));
+            Assert.IsTrue(wrongCaseConfig.Equals(_goodOdpConfig));
+        }
+    }
+}

OptimizelySDK.Tests/OdpTests/OdpEventManagerTests.cs

@@ -480,30 +480,22 @@ public void ShouldPrepareCorrectPayloadForIdentifyUser()
         [Test]
         public void ShouldApplyUpdatedOdpConfigurationWhenAvailable()
         {
-            var apiKeyCollector = new List<string>();
-            var apiHostCollector = new List<string>();
-            var segmentsToCheckCollector = new List<List<string>>();
             var apiKey = "testing-api-key";
             var apiHost = "https://some.other.example.com";
             var segmentsToCheck = new List<string>
             {
                 "empty-cart",
                 "1-item-cart",
             };
-            var mockOdpConfig = new Mock<OdpConfig>(API_KEY, API_HOST, segmentsToCheck);
-            mockOdpConfig.Setup(m => m.Update(Capture.In(apiKeyCollector),
-                Capture.In(apiHostCollector), Capture.In(segmentsToCheckCollector)));
             var differentOdpConfig = new OdpConfig(apiKey, apiHost, segmentsToCheck);
-            var eventManager = new OdpEventManager.Builder().WithOdpConfig(mockOdpConfig.Object).
+            var eventManager = new OdpEventManager.Builder().WithOdpConfig(_odpConfig).
                 WithOdpEventApiManager(_mockApiManager.Object).
                 WithLogger(_mockLogger.Object).
                 Build();
 
             eventManager.UpdateSettings(differentOdpConfig);
 
-            Assert.AreEqual(apiKey, apiKeyCollector[0]);
-            Assert.AreEqual(apiHost, apiHostCollector[0]);
-            Assert.AreEqual(segmentsToCheck, segmentsToCheckCollector[0]);
+            Assert.IsFalse(_odpConfig.Equals(eventManager._readOdpConfigForTesting()));
         }
 
         private static OdpEvent MakeEvent(int id) =>