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// Copyright (c) Microsoft Corporation. All rights reserved. See License.txt in the project root for license information.
using System;
using System.Collections.Generic;
using System.Data.Common;
using Moq;
using WebMatrix.Data.Test.Mocks;
using Xunit;
using Assert = Microsoft.TestCommon.AssertEx;
namespace WebMatrix.Data.Test
{
public class DatabaseTest
{
[Fact]
public void OpenWithNullConnectionStringNameThrowsException()
{
Assert.ThrowsArgumentNullOrEmptyString(() => Database.Open(null), "name");
}
[Fact]
public void OpenConnectionStringWithNullConnectionStringThrowsException()
{
Assert.ThrowsArgumentNullOrEmptyString(() => Database.OpenConnectionString(null), "connectionString");
}
[Fact]
public void OpenConnectionStringWithEmptyConnectionStringThrowsException()
{
Assert.ThrowsArgumentNullOrEmptyString(() => Database.OpenConnectionString(String.Empty), "connectionString");
}
[Fact]
public void OpenNamedConnectionUsesConnectionStringFromConfigurationIfExists()
{
// Arrange
MockConfigurationManager mockConfigurationManager = new MockConfigurationManager();
Mock<DbConnection> mockConnection = new Mock<DbConnection>();
mockConnection.Setup(m => m.ConnectionString).Returns("connection string");
Mock<MockDbProviderFactory> mockProviderFactory = new Mock<MockDbProviderFactory>();
mockProviderFactory.Setup(m => m.CreateConnection("connection string")).Returns(mockConnection.Object);
mockConfigurationManager.AddConnection("foo", new ConnectionConfiguration(mockProviderFactory.Object, "connection string"));
// Act
Database db = Database.OpenNamedConnection("foo", mockConfigurationManager);
// Assert
Assert.Equal("connection string", db.Connection.ConnectionString);
}
[Fact]
public void OpenNamedConnectionThrowsIfNoConnectionFound()
{
// Arrange
IConfigurationManager mockConfigurationManager = new MockConfigurationManager();
// Act & Assert
Assert.Throws<InvalidOperationException>(() => Database.OpenNamedConnection("foo", mockConfigurationManager), "Connection string \"foo\" was not found.");
}
[Fact]
public void GetConnectionConfigurationGetConnectionForFileHandlersIfRegistered()
{
// Arrange
var mockHandler = new Mock<MockDbFileHandler>();
mockHandler.Setup(m => m.GetConnectionConfiguration("filename.foo")).Returns(new MockConnectionConfiguration("some file based connection"));
var handlers = new Dictionary<string, IDbFileHandler>
{
{ ".foo", mockHandler.Object }
};
// Act
IConnectionConfiguration configuration = Database.GetConnectionConfiguration("filename.foo", handlers);
// Assert
Assert.NotNull(configuration);
Assert.Equal("some file based connection", configuration.ConnectionString);
}
[Fact]
public void GetConnectionThrowsIfNoHandlersRegisteredForExtension()
{
// Arrange
var handlers = new Dictionary<string, IDbFileHandler>();
// Act
Assert.Throws<InvalidOperationException>(() => Database.GetConnectionConfiguration("filename.foo", handlers), "Unable to determine the provider for the database file \"filename.foo\".");
}
}
}
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