Tests: Add UnitTests folder

Tests/UnitTests/DocumentTests/WineQualityStatisticsTest.cs

@@ -0,0 +1,50 @@
+using Elwig.Documents;
+using Elwig.Helpers;
+using Elwig.Models.Dtos;
+
+namespace Tests.UnitTests.DocumentTests {
+    [TestFixture]
+    public class WineQualityStatisticsTest {
+
+        [Test]
+        public async Task Test_01_AllDeliveries2020() {
+            using var ctx = new AppDbContext();
+            var data = await WineQualityStatisticsData.FromQuery(ctx.Deliveries.Where(d => d.Year == 2020).SelectMany(d => d.Parts));
+            using var doc = new WineQualityStatistics("Saison 2020", data);
+            var text = await Utils.GeneratePdfText(doc);
+            Assert.Multiple(() => {
+                Assert.That(text, Contains.Substring("Qualitätsstatistik"));
+                Assert.That(text, Contains.Substring("Saison 2020"));
+                Assert.That(text, Contains.Substring("""
+                    Wein
+                    75 1 2 561
+                    78 1 2 901
+                    79 1 1 280
+                    80 1 3 198
+                    87 1 3 129
+                    """));
+                Assert.That(text, Contains.Substring("""
+                    Qualitätswein
+                    73 2 4 431
+                    74 2 4 203
+                    75 2 2 615
+                    77 1 842
+                    82 1 4 002
+                    """));
+                Assert.That(text, Contains.Substring("""
+                    Kabinett
+                    84 3 8 960
+                    85 3 11 181
+                    86 1 2 987
+                    87 1 1 873
+                    89 2 4 723
+                    """));
+                Assert.That(text, Contains.Substring(
+                    "80 5 " + "13 069 " +
+                    "- 0 0 " +
+                    "77 5 " + "11 568 " +
+                    "85 6 " + "17 561"));
+            });
+        }
+    }
+}