public static async Task <EditSession> GetCustomSession(Query q, EditTableMetadata etm)
{
// Step 1) Create the Session object
// Mock metadata factory
Mock <IEditMetadataFactory> metaFactory = new Mock <IEditMetadataFactory>();
metaFactory
.Setup(f => f.GetObjectMetadata(It.IsAny <DbConnection>(), It.IsAny <string[]>(), It.IsAny <string>()))
.Returns(etm);
EditSession session = new EditSession(metaFactory.Object);
// Step 2) Initialize the Session
// Mock connector that does nothing
EditSession.Connector connector = () => Task.FromResult <DbConnection>(null);
// Mock query runner that returns the query we were provided
EditSession.QueryRunner queryRunner = (s) => Task.FromResult(new EditSession.EditSessionQueryExecutionState(q));
// Initialize
session.Initialize(BasicInitializeParameters, connector, queryRunner, () => Task.FromResult(0), (e) => Task.FromResult(0));
await session.InitializeTask;
return(session);
}
public async Task InitializeMetadataFails()
{
// Setup:
// ... Create a metadata factory that throws
Mock <IEditMetadataFactory> emf = new Mock <IEditMetadataFactory>();
emf.Setup(f => f.GetObjectMetadata(It.IsAny <DbConnection>(), It.IsAny <string[]>(), It.IsAny <string>()))
.Throws <Exception>();
// ... Create a session that hasn't been initialized
EditSession s = new EditSession(emf.Object);
// ... Create a mock for verifying the failure handler will be called
var successHandler = DoNothingSuccessMock;
var failureHandler = DoNothingFailureMock;
// If: I initalize the session with a metadata factory that will fail
s.Initialize(Common.BasicInitializeParameters, DoNothingConnector, DoNothingQueryRunner, successHandler.Object, failureHandler.Object);
await s.InitializeTask;
// Then:
// ... The session should not be initialized
Assert.False(s.IsInitialized);
// ... The failure handler should have been called once
failureHandler.Verify(f => f(It.IsAny <Exception>()), Times.Once);
// ... The success handler should not have been called at all
successHandler.Verify(f => f(), Times.Never);
}
public void InitializeNullParams(EditInitializeParams initParams, EditSession.Connector c,
EditSession.QueryRunner qr, Func <Task> sh, Func <Exception, Task> fh)
{
// Setup:
// ... Create a session that hasn't been initialized
Mock <IEditMetadataFactory> emf = new Mock <IEditMetadataFactory>();
EditSession s = new EditSession(emf.Object);
// If: I initialize it with a missing parameter
// Then: It should throw an exception
Assert.ThrowsAny <ArgumentException>(() => s.Initialize(initParams, c, qr, sh, fh));
}
public void InitializeAlreadyInitializing()
{
// Setup:
// ... Create a session and fake that it is in progress of initializing
Mock <IEditMetadataFactory> emf = new Mock <IEditMetadataFactory>();
EditSession s = new EditSession(emf.Object)
{
InitializeTask = new Task(() => {})
};
// If: I initialize it
// Then: I should get an exception
Assert.Throws <InvalidOperationException>(() => s.Initialize(null, null, null, null, null));
}
public void InitializeAlreadyInitialized()
{
// Setup:
// ... Create a session and fake that it has been initialized
Mock <IEditMetadataFactory> emf = new Mock <IEditMetadataFactory>();
EditSession s = new EditSession(emf.Object)
{
IsInitialized = true
};
// If: I initialize it
// Then: I should get an exception
Assert.Throws <InvalidOperationException>(() => s.Initialize(null, null, null, null, null));
}
public async Task InitializeSuccess()
{
// Setup:
// ... Create a metadata factory that will return some generic column information
var q = QueryExecution.Common.GetBasicExecutedQuery();
var rs = q.Batches[0].ResultSets[0];
var etm = Common.GetCustomEditTableMetadata(rs.Columns.Cast <DbColumn>().ToArray());
Mock <IEditMetadataFactory> emf = new Mock <IEditMetadataFactory>();
emf.Setup(f => f.GetObjectMetadata(It.IsAny <DbConnection>(), It.IsAny <string[]>(), It.IsAny <string>()))
.Returns(etm);
// ... Create a session that hasn't been initialized
EditSession s = new EditSession(emf.Object);
// ... Create a query runner that will return a successful query
Mock <EditSession.QueryRunner> qr = new Mock <EditSession.QueryRunner>();
qr.Setup(r => r(It.IsAny <string>()))
.Returns(Task.FromResult(new EditSession.EditSessionQueryExecutionState(q)));
// ... Create a mock for verifying the failure handler will be called
var successHandler = DoNothingSuccessMock;
var failureHandler = DoNothingFailureMock;
// If: I initialize the session with a query runner that will fail
s.Initialize(Common.BasicInitializeParameters, DoNothingConnector, qr.Object, successHandler.Object, failureHandler.Object);
await s.InitializeTask;
// Then:
// ... The failure handler should not have been called
failureHandler.Verify(f => f(It.IsAny <Exception>()), Times.Never);
// ... The success handler should have been called
successHandler.Verify(f => f(), Times.Once);
// ... The session should have been initialized
Assert.True(s.IsInitialized);
Assert.Equal(rs.RowCount, s.NextRowId);
Assert.NotNull(s.EditCache);
Assert.Empty(s.EditCache);
}
public async Task InitializeQueryFailReturnNull(string message)
{
// Setup:
// ... Create a metadata factory that will return some generic column information
var b = QueryExecution.Common.GetBasicExecutedBatch();
var etm = Common.GetStandardMetadata(b.ResultSets[0].Columns);
Mock <IEditMetadataFactory> emf = new Mock <IEditMetadataFactory>();
emf.Setup(f => f.GetObjectMetadata(It.IsAny <DbConnection>(), It.IsAny <string[]>(), It.IsAny <string>()))
.Returns(etm);
// ... Create a session that hasn't been initialized
EditSession s = new EditSession(emf.Object);
// ... Create a query runner that will fail via returning a null query
Mock <EditSession.QueryRunner> qr = new Mock <EditSession.QueryRunner>();
qr.Setup(r => r(It.IsAny <string>()))
.Returns(Task.FromResult(new EditSession.EditSessionQueryExecutionState(null, message)));
// ... Create a mock for verifying the failure handler will be called
var successHandler = DoNothingSuccessMock;
var failureHandler = DoNothingFailureMock;
// If: I initialize the session with a query runner that will fail
s.Initialize(Common.BasicInitializeParameters, DoNothingConnector, qr.Object, successHandler.Object, failureHandler.Object);
await s.InitializeTask;
// Then:
// ... The session should not be initialized
Assert.False(s.IsInitialized);
// ... The failure handler should have been called once
failureHandler.Verify(f => f(It.IsAny <Exception>()), Times.Once);
// ... The success handler should not have been called at all
successHandler.Verify(f => f(), Times.Never);
}