public async Task ShouldCarryOutRediscoveryWith43Server(int routerCount, int writerCount, int readerCount,
string database, params string[] bookmarks)
{
// Given
var routingContext = new Dictionary <string, string>
{
{ "address", "127.0.0.1:9001" },
{ "region", "china" },
{ "policy", "myp_policy" }
};
var recordFields = CreateGetServersDictionary(routerCount, writerCount, readerCount);
var mockConn = Setup43SocketConnection(routingContext, database, Bookmark.From(bookmarks), recordFields);
mockConn.Setup(m => m.RoutingContext).Returns(routingContext);
var manager = new ClusterDiscovery(routingContext, null);
// When
var table = await manager.DiscoverAsync(mockConn.Object, database, Bookmark.From(bookmarks));
// Then
table.Database.Should().Be(database ?? "");
table.Readers.Count().Should().Be(readerCount);
table.Writers.Count().Should().Be(writerCount);
table.Routers.Count().Should().Be(routerCount);
table.ExpireAfterSeconds.Should().Be(15000L);
mockConn.Verify(x => x.CloseAsync(), Times.Once);
}
public async Task ShouldCarryOutRediscoveryWith32Server(int routerCount, int writerCount, int readerCount)
{
// Given
var routingContext = new Dictionary <string, string>
{
{ "name", "molly" },
{ "age", "1" },
{ "color", "white" }
};
var recordFields = CreateGetServersResponseRecordFields(routerCount, writerCount, readerCount);
var mockConn = Setup32SocketConnection(routingContext, recordFields);
mockConn.Setup(m => m.RoutingContext).Returns(routingContext);
var manager = new ClusterDiscovery(routingContext, null);
// When
var table = await manager.DiscoverAsync(mockConn.Object, null, null, Bookmark.Empty);
// Then
table.Readers.Count().Should().Be(readerCount);
table.Writers.Count().Should().Be(writerCount);
table.Routers.Count().Should().Be(routerCount);
table.ExpireAfterSeconds.Should().Be(15000L);
mockConn.Verify(x => x.CloseAsync(), Times.Once);
}
public async Task ShouldThrowWhenRecordUnparsable()
{
// Given
var connMock = SetupSocketConnection(new object[] { 1 });
var manager = new ClusterDiscovery(null, null);
// When
var exception = await Record.ExceptionAsync(() => manager.DiscoverAsync(connMock.Object));
// Then
exception.Should().BeOfType <ProtocolException>().Which.Message.Should()
.Be("keys (2) does not equal to values (1)");
connMock.Verify(x => x.CloseAsync(), Times.Once);
}
public async Task ShouldThrowWhenNoRecord()
{
// Given
var connMock = SetupSocketConnection(new List <object[]>());
var manager = new ClusterDiscovery(null, null);
// When
var exception = await Record.ExceptionAsync(() => manager.DiscoverAsync(connMock.Object));
// Then
exception.Should().BeOfType <InvalidOperationException>().Which.Message.Should()
.Be("The result is empty.");
connMock.Verify(x => x.CloseAsync(), Times.Once);
}
public async Task ShouldThrowExceptionIfReaderIsEmpty()
{
// Given
var procedureReplyRecordFields = CreateGetServersResponseRecordFields(3, 1, 0);
var connMock = SetupSocketConnection(procedureReplyRecordFields);
var manager = new ClusterDiscovery(null, null);
// When
var exception = await Record.ExceptionAsync(() => manager.DiscoverAsync(connMock.Object));
// Then
exception.Should().BeOfType <ProtocolException>().Which.Message.Should()
.Contain("3 routers, 1 writers and 0 readers.");
connMock.Verify(x => x.CloseAsync(), Times.Once);
}
public async Task ShouldCarryOutRediscovery(int routerCount, int writerCount, int readerCount)
{
// Given
var recordFields = CreateGetServersResponseRecordFields(routerCount, writerCount, readerCount);
var connMock = SetupSocketConnection(recordFields);
var manager = new ClusterDiscovery(null, null);
// When
var table = await manager.DiscoverAsync(connMock.Object);
// Then
table.Readers.Count().Should().Be(readerCount);
table.Writers.Count().Should().Be(writerCount);
table.Routers.Count().Should().Be(routerCount);
table.ExpireAfterSeconds.Should().Be(9223372036854775807);
connMock.Verify(x => x.CloseAsync(), Times.Once);
}
public async Task ShouldProtocolErrorWhenMultipleRecord()
{
// Given
var connMock = SetupSocketConnection(new List <object[]>
{
CreateGetServersResponseRecordFields(3, 2, 1),
CreateGetServersResponseRecordFields(3, 2, 1)
});
var manager = new ClusterDiscovery(null, null);
// When
var exception = await Record.ExceptionAsync(() => manager.DiscoverAsync(connMock.Object));
// Then
exception.Should().BeOfType <InvalidOperationException>().Which.Message.Should()
.Be("The result contains more than one element.");
connMock.Verify(x => x.CloseAsync(), Times.Once);
}
public async Task ShouldThrowWhenProcedureNotFound()
{
// Given
var pairs = new List <Tuple <IRequestMessage, IResponseMessage> >
{
MessagePair(
new RunMessage("CALL dbms.cluster.routing.getServers", new Dictionary <string, object>()),
new FailureMessage("Neo.ClientError.Procedure.ProcedureNotFound", "not found")),
MessagePair(PullAll, Ignored)
};
var connMock = new MockedConnection(pairs).MockConn;
var manager = new ClusterDiscovery(null, null);
// When
var exception = await Record.ExceptionAsync(() => manager.DiscoverAsync(connMock.Object));
// Then
exception.Should().BeOfType <ClientException>().Which.Message.Should()
.Contain("not found");
connMock.Verify(x => x.CloseAsync(), Times.Once);
}