Add brewery discovery & detail pages with location-based search (#253)

web/backend/Features/Features.Breweries.Tests/Queries/GetAllBreweryLocationsHandlerTests.cs

@@ -0,0 +1,54 @@
+using Domain.Entities;
+using Features.Breweries.Dtos;
+using Features.Breweries.Queries.GetAllBreweryLocations;
+using Features.Breweries.Repository;
+using FluentAssertions;
+using Moq;
+
+namespace Features.Breweries.Tests.Queries;
+
+public class GetAllBreweryLocationsHandlerTests
+{
+    private readonly GetAllBreweryLocationsHandler _handler;
+    private readonly Mock<IBreweryRepository> _repoMock = new();
+
+    public GetAllBreweryLocationsHandlerTests()
+    {
+        _handler = new GetAllBreweryLocationsHandler(_repoMock.Object);
+    }
+
+    [Fact]
+    public async Task Handle_ReturnsEmpty_WhenNoBreweriesHaveALocation()
+    {
+        _repoMock.Setup(r => r.GetAllLocations()).ReturnsAsync(Array.Empty<BreweryPost>());
+
+        IEnumerable<SimplifiedBreweryDto> result = await _handler.Handle(
+            new GetAllBreweryLocationsQuery(),
+            CancellationToken.None
+        );
+
+        result.Should().BeEmpty();
+        _repoMock.Verify(r => r.GetAllLocations(), Times.Once);
+    }
+
+    [Fact]
+    public async Task Handle_ReturnsAllLocatedBreweries_FromRepository()
+    {
+        BreweryPost[] breweries =
+        [
+            new BreweryPost { BreweryPostId = Guid.NewGuid(), BreweryName = "A" },
+            new BreweryPost { BreweryPostId = Guid.NewGuid(), BreweryName = "B" },
+        ];
+        _repoMock.Setup(r => r.GetAllLocations()).ReturnsAsync(breweries);
+
+        IEnumerable<SimplifiedBreweryDto> result = await _handler.Handle(
+            new GetAllBreweryLocationsQuery(),
+            CancellationToken.None
+        );
+
+        result
+            .Select(b => b.BreweryPostId)
+            .Should()
+            .BeEquivalentTo(breweries.Select(b => b.BreweryPostId));
+    }
+}