added HourglassClientTests

Develappers.RedmineHourglassApi.Tests/HourglassClientTests.cs

@@ -0,0 +1,43 @@
+using System;
+using Xunit;
+
+namespace Develappers.RedmineHourglassApi.Tests
+{
+    public class HourglassClientTests
+    {
+        [Fact]
+        public void ValidConfiguration_ShouldSetProperties()
+        {
+            var config = Helpers.GetTestConfiguration();
+            var hourglassClient = new HourglassClient(config);
+
+            Assert.NotNull(hourglassClient.TimeBookings);
+            Assert.NotNull(hourglassClient.TimeLogs);
+            Assert.NotNull(hourglassClient.TimeTrackers);
+        }
+
+        [Fact]
+        public void NullConfiguration_ShouldThrowArgumentNullException()
+        {
+            Assert.Throws<ArgumentNullException>(() => new HourglassClient(null));
+        }
+
+        [Fact]
+        public void InvalidApiKey_ShouldThrowArgumentException()
+        {
+            var config = new Configuration("https://redmineTest.de", "");
+
+            var exception = Assert.Throws<ArgumentException>(() => new HourglassClient(config));
+            Assert.Equal("invalid api key (Parameter 'configuration')", exception.Message);
+        }
+
+        [Fact]
+        public void InvalidRedmineUrl_ShouldThrowArgumentException()
+        {
+            var config = new Configuration("", "ApiKey");
+
+            var exception = Assert.Throws<ArgumentException>(() => new HourglassClient(config));
+            Assert.Equal("invalid base url (Parameter 'configuration')", exception.Message);
+        }
+    }
+}