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Add unit tests for BlazorLocalTimeProvider and LocalTimeService components
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6 files changed

Lines changed: 203 additions & 3 deletions

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‎tests/BlazorLocalTimeTest/BlazorLocalTimeProviderCodeTest.cs‎

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using BlazorLocalTime;
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using Bunit;
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using Microsoft.Extensions.DependencyInjection;
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using Microsoft.Extensions.Logging;
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using Microsoft.JSInterop;
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using Shouldly;
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namespace BlazorLocalTimeTest;
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public class BlazorLocalTimeProviderCodeTest : TestContext
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{
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public BlazorLocalTimeProviderCodeTest()
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{
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Services.AddBlazorLocalTimeService();
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Services.AddLogging();
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}
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[Fact]
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public void BlazorLocalTimeProvider_SetsTimeZoneSuccessfully()
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{
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TestInitializer.JavaScriptInitializer(JSInterop);
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var component = RenderComponent<BlazorLocalTimeProvider>();
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var localTimeService = Services.GetRequiredService<ILocalTimeService>();
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localTimeService.IsTimeZoneInfoAvailable.ShouldBeTrue();
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localTimeService.IsSuccessLoadBrowserTimeZone?.ShouldBeTrue();
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localTimeService.GetBrowserTimeZone().Id.ShouldBe("Asia/Tokyo");
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}
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[Fact]
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public void BlazorLocalTimeProvider_HandlesJSDisconnectedException()
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{
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var module = JSInterop.SetupModule(BlazorLocalTimeProvider.JsPath);
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module.Setup<string>("getBrowserTimeZone").SetException(new JSDisconnectedException("Test disconnection"));
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var component = RenderComponent<BlazorLocalTimeProvider>();
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var localTimeService = Services.GetRequiredService<ILocalTimeService>();
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localTimeService.IsTimeZoneInfoAvailable.ShouldBeFalse();
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localTimeService.IsSuccessLoadBrowserTimeZone?.ShouldBeFalse();
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}
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[Fact]
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public void BlazorLocalTimeProvider_HandlesJSException()
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{
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var module = JSInterop.SetupModule(BlazorLocalTimeProvider.JsPath);
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module.Setup<string>("getBrowserTimeZone").SetException(new JSException("Browser API not supported"));
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var component = RenderComponent<BlazorLocalTimeProvider>();
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var localTimeService = Services.GetRequiredService<ILocalTimeService>();
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localTimeService.IsTimeZoneInfoAvailable.ShouldBeFalse();
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localTimeService.IsSuccessLoadBrowserTimeZone?.ShouldBeFalse();
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}
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[Fact]
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public void BlazorLocalTimeProvider_InitialStateIsNull()
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{
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// Don't setup JS interop to simulate initial state
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var localTimeService = Services.GetRequiredService<ILocalTimeService>();
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localTimeService.IsSuccessLoadBrowserTimeZone.ShouldBeNull();
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localTimeService.IsTimeZoneInfoAvailable.ShouldBeFalse();
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}
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}

‎tests/BlazorLocalTimeTest/Component/LocalTimeTotal2.razor‎

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@inject ILocalTimeService LocalTimeService
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@inject TimeProvider TimeProvider
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<LocalTime Value="TimeProvider.GetUtcNow()">
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<ChildContent Context="dt">
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@dt.ToString("yyyy-MM-dd HH:mm:ss")
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</ChildContent>
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<OnLoading>
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Loading
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</OnLoading>
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<OnError>
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Error
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</OnError>
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</LocalTime>
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<BlazorLocalTimeProvider />

‎tests/BlazorLocalTimeTest/LocalTimeMockService.cs‎

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@@ -14,6 +14,15 @@ public LocalTimeMockService(TimeProvider provider)
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}
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}
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internal class LocalTimeEmptyMockService : LocalTimeService
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{
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public LocalTimeEmptyMockService(TimeProvider provider)
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: base(provider)
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{
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BrowserTimeZoneInfo = null;
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}
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}
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internal static class LocalTimeMockServiceExtension
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{
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public static IServiceCollection AddLocalTimeMockService(this IServiceCollection services)

‎tests/BlazorLocalTimeTest/LocalTimeServiceTest.cs‎

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using BlazorLocalTime;
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using Shouldly;
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namespace BlazorLocalTimeTest;
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public class LocalTimeServiceTest
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{
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[Fact]
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public void LocalTimeService_InitialState_IsSuccessLoadBrowserTimeZoneIsNull()
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{
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var service = new LocalTimeService(TimeProvider.System);
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service.IsSuccessLoadBrowserTimeZone.ShouldBeNull();
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((ILocalTimeService)service).IsTimeZoneInfoAvailable.ShouldBeFalse();
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}
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[Fact]
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public void LocalTimeService_SetBrowserTimeZoneInfo_SetsSuccessFlag()
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{
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var service = new LocalTimeService(TimeProvider.System);
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var timeZone = TimeZoneInfo.FindSystemTimeZoneById("America/New_York");
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service.SetBrowserTimeZoneInfo(timeZone);
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((ILocalTimeService)service).IsTimeZoneInfoAvailable.ShouldBeTrue();
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((ILocalTimeService)service).GetBrowserTimeZone().Id.ShouldBe("America/New_York");
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}
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[Fact]
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public void LocalTimeService_TimeZoneConversion_WorksWithSetTimeZone()
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{
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var service = new LocalTimeService(TimeProvider.System);
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var utcTime = new DateTimeOffset(2023, 12, 25, 10, 0, 0, TimeSpan.Zero);
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var timeZone = TimeZoneInfo.FindSystemTimeZoneById("Asia/Tokyo");
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service.SetBrowserTimeZoneInfo(timeZone);
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var localTime = ((ILocalTimeService)service).ToLocalTimeOffset(utcTime);
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localTime.Hour.ShouldBe(19); // UTC+9
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localTime.Offset.ShouldBe(timeZone.GetUtcOffset(utcTime));
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}
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}

‎tests/BlazorLocalTimeTest/LocalTimeTest.razor‎

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@@ -65,8 +65,51 @@
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@dtl.ToString("yyyy-MM-dd HH:mm")
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</LocalTime>
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);
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cut.MarkupMatches("2023-10-01 21:30");
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}
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[Fact]
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public void TestLoadingComponent1()
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{
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Services.AddScoped<ILocalTimeService, LocalTimeEmptyMockService>();
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Services.AddSingleton<TimeProvider>(TimeProvider.System);
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var dt = new DateTime(2023, 10, 1, 12, 30, 0, DateTimeKind.Utc);
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var cut = Render(
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@<LocalTime Value="dt">
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<ChildContent Context="dtl">
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@dtl.ToString("yyyy-MM-dd HH:mm")
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</ChildContent>
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<OnLoading>
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Loading...
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</OnLoading>
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</LocalTime>
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);
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cut.MarkupMatches("Loading...");
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}
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[Fact]
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public void TestLoadingComponent2()
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{
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Services.AddLocalTimeMockService();
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var dt = new DateTime(2023, 10, 1, 12, 30, 0, DateTimeKind.Utc);
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var cut = Render(
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@<LocalTime Value="dt">
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<ChildContent Context="dtl">
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@dtl.ToString("yyyy-MM-dd HH:mm")
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</ChildContent>
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<OnLoading>
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Loading...
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</OnLoading>
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</LocalTime>
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);
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cut.MarkupMatches("2023-10-01 21:30");
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}
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}

‎tests/BlazorLocalTimeTest/LocalTimeTotalTest.razor‎

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@@ -13,7 +13,7 @@
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// 12:34+09:00 -> 2023-10-01 21:34:56
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cut.MarkupMatches("<p>2023-10-01 21:34:56</p>");
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}
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[Fact]
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public void TestTotalFailed1()
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{
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RenderComponent<LocalTimeTotalFailed1>();
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});
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}
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[Fact]
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public void TestTotal2Success()
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{
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var timeProvider = new MockTimeProvider(new(2023, 10, 1, 12, 34, 56, TimeSpan.Zero));
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Services.AddBlazorLocalTimeService(timeProvider);
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TestInitializer.JavaScriptInitializer(JSInterop);
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var cut = RenderComponent<LocalTimeTotal2>();
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// 12:34+09:00 -> 2023-10-01 21:34:56
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cut.MarkupMatches("2023-10-01 21:34:56");
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}
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[Fact]
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public void TestTotal2Error()
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{
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var timeProvider = new MockTimeProvider(new(2023, 10, 1, 12, 34, 56, TimeSpan.Zero));
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Services.AddBlazorLocalTimeService(timeProvider);
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var module = JSInterop.SetupModule(BlazorLocalTimeProvider.JsPath);
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module.Setup<string>("getBrowserTimeZone").SetException(new JSException("error"));
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var cut = RenderComponent<LocalTimeTotal2>();
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cut.MarkupMatches("Error");
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}
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}

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