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+// Copyright (c) .NET Foundation. All rights reserved.
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+// Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
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+
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+using Microsoft.AspNetCore.NodeServices.HostingModels;
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+using Microsoft.Extensions.DependencyInjection;
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+using System;
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+using System.Threading.Tasks;
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+using Xunit;
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+
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+namespace Microsoft.AspNetCore.NodeServices
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+{
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+ public class NodeServicesTest : IDisposable
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+ {
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+ private readonly INodeServices _nodeServices;
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+
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+ public NodeServicesTest()
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+ {
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+ // In typical ASP.NET Core applications, INodeServices is made available
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+ // through DI using services.AddNodeServices(). But for these tests we
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+ // create our own INodeServices instance manually, since the tests are
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+ // not about DI (and we might want different config for each test).
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+ var serviceProvider = new ServiceCollection().BuildServiceProvider();
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+ var options = new NodeServicesOptions(serviceProvider);
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+ _nodeServices = NodeServicesFactory.CreateNodeServices(options);
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+ }
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+
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+ [Fact]
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+ public async Task CanGetSuccessResult()
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+ {
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+ // Act
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+ var result = await _nodeServices.InvokeExportAsync<string>(
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+ ModulePath("testCases"),
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+ "getFixedString");
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+
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+ // Assert
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+ Assert.Equal("test result", result);
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+ }
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+
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+ [Fact]
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+ public async Task CanGetErrorResult()
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+ {
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+ // Act/Assert
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+ var ex = await Assert.ThrowsAsync<NodeInvocationException>(() =>
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+ _nodeServices.InvokeExportAsync<string>(
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+ ModulePath("testCases"),
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+ "raiseError"));
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+ Assert.StartsWith("This is an error from Node", ex.Message);
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+ }
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+
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+ [Fact]
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+ public async Task CanGetResultAsynchronously()
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+ {
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+ // Act
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+ // All the invocations are async, but this test shows we're not reliant
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+ // on the response coming back immediately
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+ var result = await _nodeServices.InvokeExportAsync<string>(
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+ ModulePath("testCases"),
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+ "getFixedStringWithDelay");
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+
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+ // Assert
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+ Assert.Equal("delayed test result", result);
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+ }
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+
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+ [Fact]
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+ public async Task CanPassParameters()
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+ {
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+ // Act
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+ var result = await _nodeServices.InvokeExportAsync<string>(
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+ ModulePath("testCases"),
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+ "echoSimpleParameters",
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+ "Hey",
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+ 123);
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+
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+ // Assert
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+ Assert.Equal("Param0: Hey; Param1: 123", result);
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+ }
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+
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+ [Fact]
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+ public async Task CanPassParametersWithCamelCaseNameConversion()
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+ {
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+ // Act
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+ var result = await _nodeServices.InvokeExportAsync<string>(
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+ ModulePath("testCases"),
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+ "echoComplexParameters",
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+ new ComplexModel { StringProp = "Abc", IntProp = 123, BoolProp = true });
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+
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+ // Assert
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+ Assert.Equal("Received: [{\"stringProp\":\"Abc\",\"intProp\":123,\"boolProp\":true}]", result);
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+ }
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+
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+ [Fact]
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+ public async Task CanReceiveComplexResultWithPascalCaseNameConversion()
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+ {
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+ // Act
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+ var result = await _nodeServices.InvokeExportAsync<ComplexModel>(
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+ ModulePath("testCases"),
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+ "getComplexObject");
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+
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+ // Assert
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+ Assert.Equal("Hi from Node", result.StringProp);
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+ Assert.Equal(456, result.IntProp);
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+ Assert.True(result.BoolProp);
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+ }
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+
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+ [Fact]
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+ public async Task CanInvokeDefaultModuleExport()
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+ {
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+ // Act
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+ var result = await _nodeServices.InvokeAsync<string>(
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+ ModulePath("moduleWithDefaultExport"),
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+ "This is from .NET");
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+
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+ // Assert
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+ Assert.Equal("Hello from the default export. You passed: This is from .NET", result);
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+ }
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+
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+ private static string ModulePath(string testModuleName)
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+ => $"../../../js/{testModuleName}";
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+
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+ public void Dispose()
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+ {
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+ _nodeServices.Dispose();
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+ }
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+
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+ class ComplexModel
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+ {
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+ public string StringProp { get; set; }
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+
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+ public int IntProp { get; set; }
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+
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+ public bool BoolProp { get; set; }
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+ }
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+ }
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+}
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Steve Sanderson