parent
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reprise de l'exemple 041_001 avec seulement SqlServer
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nuget, dotnet restore...
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modification de OnConfiguring
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pour avoir un provider par défaut, mais la possibilité d'en injecter un autre via un constructeur
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le constructeur par défaut permettra d'utiliser la version par défaut
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on utilise pour ça la propriété IsConfigured
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```csharp
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protected override void OnConfiguring(DbContextOptionsBuilder options)
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{
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if (!options.IsConfigured)
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{
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options.UseSqlServer(@"Server=(localdb)\mssqllocaldb;Database=ex_041_004_InMemory.Nounours.mdf;Trusted_Connection=True;");
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}
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}
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```
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ajout des constructeurs
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```csharp
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public SqlServerContext()
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{ }
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public SqlServerContext(DbContextOptions<SqlServerContext> options)
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: base(options)
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{ }
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```
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test
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* nouveau projet
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* dépendances
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* nuget
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* écriture du test
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@ -0,0 +1,12 @@
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<Project Sdk="Microsoft.NET.Sdk">
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<PropertyGroup>
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<OutputType>Exe</OutputType>
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<TargetFramework>netcoreapp3.1</TargetFramework>
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</PropertyGroup>
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<ItemGroup>
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<PackageReference Include="Microsoft.EntityFrameworkCore" Version="3.1.0" />
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<PackageReference Include="Microsoft.EntityFrameworkCore.SqlServer" Version="3.1.0" />
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<PackageReference Include="Microsoft.EntityFrameworkCore.Tools" Version="3.1.0"/>
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</ItemGroup>
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</Project>
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@ -0,0 +1,39 @@
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using ex_041_004_InMemory;
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using Microsoft.EntityFrameworkCore;
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using System;
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using System.Linq;
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using Xunit;
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namespace ex_041_004_UnitTests
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{
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public class NounoursDB_Tests
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{
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[Fact]
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public void Add_Test()
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{
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var options = new DbContextOptionsBuilder<SqlServerContext>()
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.UseInMemoryDatabase(databaseName: "Add_writes_to_database")
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.Options;
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// Run the test against one instance of the context
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using (var context = new SqlServerContext(options))
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{
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Nounours chewie = new Nounours { Nom = "Chewbacca" };
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Nounours yoda = new Nounours { Nom = "Yoda" };
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Nounours ewok = new Nounours { Nom = "Ewok" };
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context.Nounours.Add(chewie);
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context.Nounours.Add(yoda);
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context.Nounours.Add(ewok);
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context.SaveChanges();
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}
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// Use a separate instance of the context to verify correct data was saved to database
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using (var context = new SqlServerContext(options))
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{
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Assert.Equal(3, context.Nounours.Count());
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Assert.Equal("Chewbacca", context.Nounours.First().Nom);
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}
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}
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}
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}
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