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Add unit tests for LocalStorageService: implement tests for GetItem, SetItem, and RemoveItem methods
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a.beging@eas-solutions.de
2026-04-30 10:33:35 +02:00
parent cefa47a176
commit 865797d3f8
3 changed files with 158 additions and 0 deletions
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26
FoodsharingSiegen.Tests/FoodsharingSiegen.Tests.csproj Normal file
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<ItemGroup>
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<ItemGroup>
<ProjectReference Include="..\FoodsharingSiegen.Server\FoodsharingSiegen.Server.csproj" />
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87
FoodsharingSiegen.Tests/LocalStorageServiceTests.cs Normal file
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using System.Text.Json;
using FoodsharingSiegen.Server.Service;
using Microsoft.JSInterop;
using Moq;
using Xunit;
namespace FoodsharingSiegen.Tests
{
public class LocalStorageServiceTests
{
[Fact]
public async Task GetItem_ReturnsDeserializedObject_WhenItemExists()
{
// Arrange
var mockJsRuntime = new Mock<IJSRuntime>();
var service = new LocalStorageService(mockJsRuntime.Object);
var expectedObject = new { Name = "Test" };
var jsonString = JsonSerializer.Serialize(expectedObject);
mockJsRuntime.Setup(x => x.InvokeAsync<string>("localStorage.getItem", It.IsAny<object[]>()))
.ReturnsAsync(jsonString);
// Act
var result = await service.GetItem<dynamic>("testKey");
// Assert
Assert.NotNull(result);
mockJsRuntime.Verify(x => x.InvokeAsync<string>("localStorage.getItem", It.Is<object[]>(args => args.Length == 1 && args[0].ToString() == "testKey")), Times.Once);
}
[Fact]
public async Task GetItem_ReturnsDefault_WhenItemDoesNotExist()
{
// Arrange
var mockJsRuntime = new Mock<IJSRuntime>();
var service = new LocalStorageService(mockJsRuntime.Object);
mockJsRuntime.Setup(x => x.InvokeAsync<string>("localStorage.getItem", It.IsAny<object[]>()))
.ReturnsAsync((string?)null);
// Act
var result = await service.GetItem<string>("testKey");
// Assert
Assert.Null(result);
}
[Fact]
public async Task SetItem_CallsSetItemInLocalStorage()
{
// Arrange
var mockJsRuntime = new Mock<IJSRuntime>();
var service = new LocalStorageService(mockJsRuntime.Object);
var objectToSave = new { Name = "Test" };
var expectedJson = JsonSerializer.Serialize(objectToSave);
// Act
await service.SetItem("testKey", objectToSave);
// Assert
// Note: InvokeVoidAsync is an extension method that calls InvokeAsync<IJSVoidResult> under the hood in Blazor.
mockJsRuntime.Verify(
x => x.InvokeAsync<It.IsAnyType>(
"localStorage.setItem",
It.Is<object[]>(args => args.Length == 2 && args[0].ToString() == "testKey" && args[1].ToString() == expectedJson)),
Times.Once);
}
[Fact]
public async Task RemoveItem_CallsRemoveItemInLocalStorage()
{
// Arrange
var mockJsRuntime = new Mock<IJSRuntime>();
var service = new LocalStorageService(mockJsRuntime.Object);
// Act
await service.RemoveItem("testKey");
// Assert
mockJsRuntime.Verify(
x => x.InvokeAsync<It.IsAnyType>(
"localStorage.removeItem",
It.Is<object[]>(args => args.Length == 1 && args[0].ToString() == "testKey")),
Times.Once);
}
}
}

45
FoodsharingSiegen.sln
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@@ -6,23 +6,68 @@ Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "FoodsharingSiegen.Contracts
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EndProject EndProject
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