Improve testing docs

.openpublishing.redirection.json

@@ -439,6 +439,26 @@
             "source_path": "core/saving/explicit-values-generated-properties.md",
             "redirect_url": "/ef/core/modeling/generated-properties#overriding-values",
             "redirect_document_id": false
+        },
+        {
+            "source_path": "core/testing/testing-sample.md",
+            "redirect_url": "/ef/core/testing/index",
+            "redirect_document_id": false
+        },
+        {
+            "source_path": "core/testing/sharing-databases.md",
+            "redirect_url": "/ef/core/testing/index",
+            "redirect_document_id": false
+        },
+        {
+            "source_path": "core/testing/sqlite.md",
+            "redirect_url": "/ef/core/testing/index",
+            "redirect_document_id": false
+        },
+        {
+            "source_path": "core/testing/in-memory.md",
+            "redirect_url": "/ef/core/testing/index",
+            "redirect_document_id": false
         }
     ]
 }

entity-framework/core/managing-schemas/ensure-created.md

@@ -8,18 +8,18 @@ uid: core/managing-schemas/ensure-created
 ---
 # Create and Drop APIs
 
-The EnsureCreated and EnsureDeleted methods provide a lightweight alternative to [Migrations](xref:core/managing-schemas/migrations/index) for managing the database schema. These methods are useful in scenarios when the data is transient and can be dropped when the schema changes. For example during prototyping, in tests, or for local caches.
+The <xref:Microsoft.EntityFrameworkCore.Storage.IDatabaseCreator.EnsureCreated> and <xref:Microsoft.EntityFrameworkCore.Storage.IDatabaseCreator.EnsureDeleted> methods provide a lightweight alternative to [Migrations](xref:core/managing-schemas/migrations/index) for managing the database schema. These methods are useful in scenarios when the data is transient and can be dropped when the schema changes. For example during prototyping, in tests, or for local caches.
 
-Some providers (especially non-relational ones) don't support Migrations. For these providers, EnsureCreated is often the easiest way to initialize the database schema.
+Some providers (especially non-relational ones) don't support Migrations. For these providers, `EnsureCreated` is often the easiest way to initialize the database schema.
 
 > [!WARNING]
-> EnsureCreated and Migrations don't work well together. If you're using Migrations, don't use EnsureCreated to initialize the schema.
+> `EnsureCreated` and Migrations don't work well together. If you're using Migrations, don't use `EnsureCreated` to initialize the schema.
 
-Transitioning from EnsureCreated to Migrations is not a seamless experience. The simplest way to do it is to drop the database and re-create it using Migrations. If you anticipate using migrations in the future, it's best to just start with Migrations instead of using EnsureCreated.
+Transitioning from `EnsureCreated` to Migrations is not a seamless experience. The simplest way to do it is to drop the database and re-create it using Migrations. If you anticipate using migrations in the future, it's best to just start with Migrations instead of using `EnsureCreated`.
 
 ## EnsureDeleted
 
-The EnsureDeleted method will drop the database if it exists. If you don't have the appropriate permissions, an exception is thrown.
+The `EnsureDeleted` method will drop the database if it exists. If you don't have the appropriate permissions, an exception is thrown.
 
 ```csharp
 // Drop the database if it exists
@@ -28,7 +28,7 @@ dbContext.Database.EnsureDeleted();
 
 ## EnsureCreated
 
-EnsureCreated will create the database if it doesn't exist and initialize the database schema. If any tables exist (including tables for another DbContext class), the schema won't be initialized.
+`EnsureCreated` will create the database if it doesn't exist and initialize the database schema. If any tables exist (including tables for another `DbContext` class), the schema won't be initialized.
 
 ```csharp
 // Create the database if it doesn't exist
@@ -40,7 +40,7 @@ dbContext.Database.EnsureCreated();
 
 ## SQL Script
 
-To get the SQL used by EnsureCreated, you can use the GenerateCreateScript method.
+To get the SQL used by `EnsureCreated`, you can use the <xref:Microsoft.EntityFrameworkCore.RelationalDatabaseFacadeExtensions.GenerateCreateScript%2A> method.
 
 ```csharp
 var sql = dbContext.Database.GenerateCreateScript();

entity-framework/core/providers/in-memory/index.md

@@ -7,7 +7,10 @@ uid: core/providers/in-memory/index
 ---
 # EF Core In-Memory Database Provider
 
-This database provider allows Entity Framework Core to be used with an in-memory database. The in-memory database can be useful for testing, although the SQLite provider in in-memory mode may be a more appropriate test replacement for relational databases. The in-memory database is designed for testing only. The provider is maintained as part of the [Entity Framework Core Project](https://github.com/dotnet/efcore).
+This database provider allows Entity Framework Core to be used with an in-memory database. While some users use the in-memory database for testing, this is generally discouraged; the SQLite provider in in-memory mode is a more appropriate test replacement for relational databases. For more information on how to test EF Core applications, see the [testing documentation](xref:core/testing/index). The provider is maintained as part of the [Entity Framework Core Project](https://github.com/dotnet/efcore).
+
+> [!WARNING]
+> The In-Memory provider was not designed for use outside of testing environments and should never be used as such.
 
 ## Install
 
@@ -31,7 +34,7 @@ Install-Package Microsoft.EntityFrameworkCore.InMemory
 
 The following resources will help you get started with this provider.
 
-* [Testing with InMemory](xref:core/testing/in-memory)
+* [Testing with InMemory](xref:core/testing/testing-without-the-database#inmemory-provider)
 * [UnicornStore Sample Application Tests](https://github.com/rowanmiller/UnicornStore/blob/master/UnicornStore/src/UnicornStore.Tests/Controllers/ShippingControllerTests.cs)
 
 ## Supported Database Engines

entity-framework/core/providers/index.md

@@ -22,7 +22,7 @@ Entity Framework Core can access many different databases through plug-in librar
 |:--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|:--------------------------------|:------------------------------------------------------------------------------------------------|:-------------------------------------------|:------------------|:-----------------------------------------------------------------------------------------------------------------------------------------------|
 | [Microsoft.EntityFrameworkCore.SqlServer](https://www.nuget.org/packages/Microsoft.EntityFrameworkCore.SqlServer)                                                                     | SQL Server 2012 onwards         | [EF Core Project](https://github.com/dotnet/efcore/) (Microsoft)                                |                                            | 6.0               | [docs](xref:core/providers/sql-server/index)                                                                                                   |
 | [Microsoft.EntityFrameworkCore.Sqlite](https://www.nuget.org/packages/Microsoft.EntityFrameworkCore.Sqlite)                                                                           | SQLite 3.7 onwards              | [EF Core Project](https://github.com/dotnet/efcore/) (Microsoft)                                |                                            | 6.0               | [docs](xref:core/providers/sqlite/index)                                                                                                       |
-| [Microsoft.EntityFrameworkCore.InMemory](https://www.nuget.org/packages/Microsoft.EntityFrameworkCore.InMemory)                                                                       | EF Core in-memory database      | [EF Core Project](https://github.com/dotnet/efcore/) (Microsoft)                                | [Limitations](xref:core/testing/in-memory) | 6.0               | [docs](xref:core/providers/in-memory/index)                                                                                                    |
+| [Microsoft.EntityFrameworkCore.InMemory](https://www.nuget.org/packages/Microsoft.EntityFrameworkCore.InMemory)                                                                       | EF Core in-memory database      | [EF Core Project](https://github.com/dotnet/efcore/) (Microsoft)                                | [Limitations](xref:core/testing/testing-without-the-database#inmemory-provider) | 6.0               | [docs](xref:core/providers/in-memory/index)                                                                                                    |
 | [Microsoft.EntityFrameworkCore.Cosmos](https://www.nuget.org/packages/Microsoft.EntityFrameworkCore.Cosmos)                                                                           | Azure Cosmos DB SQL API         | [EF Core Project](https://github.com/dotnet/efcore/) (Microsoft)                                |                                            | 6.0               | [docs](xref:core/providers/cosmos/index)                                                                                                       |
 | [Npgsql.EntityFrameworkCore.PostgreSQL](https://www.nuget.org/packages/Npgsql.EntityFrameworkCore.PostgreSQL)                                                                         | PostgreSQL                      | [Npgsql Development Team](https://github.com/npgsql)                                            |                                            | 6.0               | [docs](https://www.npgsql.org/efcore/index.html)                                                                                               |
 | [Pomelo.EntityFrameworkCore.MySql](https://www.nuget.org/packages/Pomelo.EntityFrameworkCore.MySql)                                                                                   | MySQL, MariaDB                  | [Pomelo Foundation Project](https://github.com/PomeloFoundation)                                |                                            | 6.0               | [readme](https://github.com/PomeloFoundation/Pomelo.EntityFrameworkCore.MySql/blob/master/README.md)                                           |

entity-framework/core/testing/_static/fake-provider-and-repository-pattern.xml

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