MongodbReader cancellation tokens and some unit tests

2023-06-25 15:03:52 +01:00
parent 11ce19cb5c
commit dee1376a41
22 changed files with 1758 additions and 614 deletions
@@ -0,0 +1,121 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Linq.Expressions;
+using System.Threading;
+using System.Threading.Tasks;
+using AutoFixture;
+using CoreUnitTests.Infrastructure.Model;
+using FluentAssertions;
+using MongoDB.Driver;
+using MongoDbGenericRepository;
+using Moq;
+using Xunit;
+
+namespace CoreUnitTests.DataAccessTests.MongoDbReaderTests;
+
+public class ProjectOneTests : BaseReaderTests
+{
+    private readonly Expression<Func<TestDocument, bool>> filter = t => string.IsNullOrWhiteSpace(t.SomeContent2);
+
+    private readonly Expression<Func<TestDocument, TestProjection>>
+        projectionExpression = t => new TestProjection {TestDocumentId = t.Id, NestedData = t.Nested.SomeDate};
+
+    [Fact]
+    public void WithFilterAndProjection_Projects()
+    {
+        // Arrange
+        var collection = MockOf<IMongoCollection<TestDocument>>();
+        var projections = Fixture.CreateMany<TestProjection>().ToList();
+        var (context, cursor) = SetupProjection(projections, collection);
+
+        // Act
+        var result = Sut.ProjectOne<TestDocument, TestProjection, Guid>(filter, projectionExpression);
+
+        // Assert
+        context.Verify(x => x.GetCollection<TestDocument>(null), Times.Once);
+        cursor.Verify(x => x.Current, Times.Once);
+        cursor.Verify(x => x.MoveNext(CancellationToken.None), Times.Once);
+        result.Should().NotBeNull();
+        result.Should().Be(projections[0]);
+    }
+
+    [Fact]
+    public void WithFilterAndProjectionAndCancellationToken_Projects()
+    {
+        // Arrange
+        var collection = MockOf<IMongoCollection<TestDocument>>();
+        var projections = Fixture.CreateMany<TestProjection>().ToList();
+        var token = new CancellationToken(true);
+        var (context, cursor) = SetupProjection(projections, collection);
+
+        // Act
+        var result = Sut.ProjectOne<TestDocument, TestProjection, Guid>(filter, projectionExpression, cancellationToken: token);
+
+        // Assert
+        context.Verify(x => x.GetCollection<TestDocument>(null), Times.Once);
+        cursor.Verify(x => x.Current, Times.Once);
+        cursor.Verify(x => x.MoveNext(token), Times.Once);
+        result.Should().NotBeNull();
+        result.Should().Be(projections[0]);
+    }
+
+    [Fact]
+    public void WithFilterAndProjectionAndPartitionKey_Projects()
+    {
+        // Arrange
+        var collection = MockOf<IMongoCollection<TestDocument>>();
+        var projections = Fixture.CreateMany<TestProjection>().ToList();
+        var partitionKey = Fixture.Create<string>();
+        var (context, cursor) = SetupProjection(projections, collection, partitionKey);
+
+        // Act
+        var result = Sut.ProjectOne<TestDocument, TestProjection, Guid>(filter, projectionExpression, partitionKey);
+
+        // Assert
+        context.Verify(x => x.GetCollection<TestDocument>(partitionKey), Times.Once);
+        cursor.Verify(x => x.Current, Times.Once);
+        cursor.Verify(x => x.MoveNext(CancellationToken.None), Times.Once);
+        result.Should().NotBeNull();
+        result.Should().Be(projections[0]);
+    }
+
+    [Fact]
+    public void WithFilterAndProjectionAndPartitionKeyAndCancellationToken_Projects()
+    {
+        // Arrange
+        var collection = MockOf<IMongoCollection<TestDocument>>();
+        var projections = Fixture.CreateMany<TestProjection>().ToList();
+        var partitionKey = Fixture.Create<string>();
+        var token = new CancellationToken(true);
+        var (context, cursor) = SetupProjection(projections, collection, partitionKey);
+
+        // Act
+        var result = Sut.ProjectOne<TestDocument, TestProjection, Guid>(filter, projectionExpression, partitionKey, token);
+
+        // Assert
+        context.Verify(x => x.GetCollection<TestDocument>(partitionKey), Times.Once);
+        cursor.Verify(x => x.Current, Times.Once);
+        cursor.Verify(x => x.MoveNext(token), Times.Once);
+        result.Should().NotBeNull();
+        result.Should().Be(projections[0]);
+    }
+
+    private (Mock<IMongoDbContext>, Mock<IAsyncCursor<TProjection>>) SetupProjection<TDocument, TProjection>(
+        List<TProjection> projections,
+        Mock<IMongoCollection<TDocument>> collection,
+        string partitionKey = null)
+    {
+        var asyncCursor = SetupSyncCursor(projections);
+
+        SetupFindSync(collection, asyncCursor);
+
+        var context = MockOf<IMongoDbContext>();
+
+        context
+            .Setup(x => x.GetCollection<TDocument>(partitionKey))
+            .Returns(collection.Object);
+
+        return (context, asyncCursor);
+    }
+}