//https://github.com/Readify/Neo4jClient/issues/127
public async Task ReturnsCorrectError_WhenTransactionIsAutomaticallyRolledBack_ViaNeo4j_2_2_6_Plus(RestTestHarness.Neo4jVersion version)
{
/* In 2.2.6 ClientErrors (Constraint Violations etc) were changed to Automatically rollback. This created a 404 error when *we* tried to rollback on an error, as the transaction no longer existed. */
var initTransactionRequest = MockRequest.PostJson("/transaction", @"{
'statements': [{'statement': 'MATCH n\r\nRETURN count(n)', 'resultDataContents':[], 'parameters': {}}]}");
var rollbackTransactionRequest = MockRequest.Delete("/transaction/1");
using (var testHarness = new RestTestHarness
{
{
initTransactionRequest,
MockResponse.Json(201, TransactionRestResponseHelper.GenerateCypherErrorResponse(1, "{\"code\":\"Neo.ClientError.Schema.ConstraintViolation\",\"message\":\"Node 19572 already exists with label User and property.\"}"), "http://foo/db/data/transaction/1")
},
{
rollbackTransactionRequest, MockResponse.Json(404, "{\"results\":[],\"errors\":[{\"code\":\"Neo.ClientError.Transaction.UnknownId\",\"message\":\"Unrecognized transaction id. Transaction may have timed out and been rolled back.\"}]}")
}
})
{
var client = testHarness.CreateGraphClient(version);
await client.ConnectAsync();
using (var transaction = client.BeginTransaction())
{
await Assert.ThrowsAsync <NeoException>(async() => await client.Cypher.Match("n").Return(n => n.Count()).ExecuteWithoutResultsAsync());
}
}
}
//https://github.com/Readify/Neo4jClient/issues/127
public async Task ReturnsThe404_WhenVersionIsLessThan_2_2_6(RestTestHarness.Neo4jVersion version)
{
var initTransactionRequest = MockRequest.PostJson("/transaction", @"{
'statements': [{'statement': 'MATCH n\r\nRETURN count(n)', 'resultDataContents':[], 'parameters': {}}]}");
var rollbackTransactionRequest = MockRequest.Delete("/transaction/1");
using (var testHarness = new RestTestHarness
{
{
initTransactionRequest,
MockResponse.Json(201, TransactionRestResponseHelper.GenerateCypherErrorResponse(1, "{\"code\":\"Neo.ClientError.Schema.ConstraintViolation\",\"message\":\"Node 19572 already exists with label User and property.\"}"), "http://foo/db/data/transaction/1")
},
{
rollbackTransactionRequest, MockResponse.Json(404, "{\"results\":[],\"errors\":[{\"code\":\"Neo.ClientError.Transaction.UnknownId\",\"message\":\"Unrecognized transaction id. Transaction may have timed out and been rolled back.\"}]}")
}
})
{
var client = testHarness.CreateGraphClient(version);
await client.ConnectAsync();
try
{
using (var transaction = client.BeginTransaction())
{
await client.Cypher.Match("n").Return(n => n.Count()).ExecuteWithoutResultsAsync();
}
}
catch (Exception ex)
{
Assert.True(ex.Message.Contains("404"));
}
}
}
//https://github.com/Readify/Neo4jClient/issues/127
public void ReturnsCorrectError_WhenTransactionIsAutomaticallyRolledBack_ViaNeo4j_2_2_6_Plus([Values(RestTestHarness.Neo4jVersion.Neo226/*, RestTestHarness.Neo4jVersion.Neo23*/)] RestTestHarness.Neo4jVersion version)
{
/* In 2.2.6 ClientErrors (Constraint Violations etc) were changed to Automatically rollback. This created a 404 error when *we* tried to rollback on an error, as the transaction no longer existed. */
var initTransactionRequest = MockRequest.PostJson("/transaction", @"{
'statements': [{'statement': 'MATCH n\r\nRETURN count(n)', 'resultDataContents':[], 'parameters': {}}]}");
var rollbackTransactionRequest = MockRequest.Delete("/transaction/1");
using (var testHarness = new RestTestHarness
{
{
initTransactionRequest,
MockResponse.Json(201, TransactionRestResponseHelper.GenerateCypherErrorResponse(1, "{\"code\":\"Neo.ClientError.Schema.ConstraintViolation\",\"message\":\"Node 19572 already exists with label User and property.\"}"), "http://foo/db/data/transaction/1")
},
{
rollbackTransactionRequest, MockResponse.Json(404, "{\"results\":[],\"errors\":[{\"code\":\"Neo.ClientError.Transaction.UnknownId\",\"message\":\"Unrecognized transaction id. Transaction may have timed out and been rolled back.\"}]}")
}
})
{
var client = testHarness.CreateGraphClient(version);
client.Connect();
using (var transaction = client.BeginTransaction())
{
client.Cypher.Match("n").Return(n => n.Count()).ExecuteWithoutResults();
}
}
}
//https://github.com/Readify/Neo4jClient/issues/127
public async Task ReturnsThe404_WhenVersionIs_2_2_6_Plus_WhenActuallyTimingOut(RestTestHarness.Neo4jVersion version)
{
var initTransactionRequest = MockRequest.PostJson("/transaction", @"{
'statements': [{'statement': 'MATCH n\r\nRETURN count(n)', 'resultDataContents':[], 'parameters': {}}]}");
var rollbackTransactionRequest = MockRequest.Delete("/transaction/1");
using (var testHarness = new RestTestHarness()
{
{
initTransactionRequest,
MockResponse.Json(201, TransactionRestResponseHelper.GenerateInitTransactionResponse(1), "http://foo/db/data/transaction/1")
},
{
rollbackTransactionRequest, MockResponse.Json(404, "{\"results\":[],\"errors\":[{\"code\":\"Neo.ClientError.Transaction.UnknownId\",\"message\":\"Unrecognized transaction id. Transaction may have timed out and been rolled back.\"}]}")
}
})
{
var client = testHarness.CreateGraphClient(version);
await client.ConnectAsync();
try
{
using (var transaction = client.BeginTransaction())
{
await client.Cypher.Match("n").Return(n => n.Count()).ExecuteWithoutResultsAsync();
}
throw new Exception("Should not reach this code, as there is an expected exception.");
}
catch (Exception ex)
{
Assert.True(ex.Message.Contains("404"));
}
}
}
//https://github.com/Readify/Neo4jClient/issues/127
public void ReturnsThe404_WhenVersionIs_2_2_6_Plus_WhenActuallyTimingOut([Values(RestTestHarness.Neo4jVersion.Neo226, RestTestHarness.Neo4jVersion.Neo23)] RestTestHarness.Neo4jVersion version)
{
var initTransactionRequest = MockRequest.PostJson("/transaction", @"{
'statements': [{'statement': 'MATCH n\r\nRETURN count(n)', 'resultDataContents':[], 'parameters': {}}]}");
var rollbackTransactionRequest = MockRequest.Delete("/transaction/1");
using (var testHarness = new RestTestHarness()
{
{
initTransactionRequest,
MockResponse.Json(201, TransactionRestResponseHelper.GenerateInitTransactionResponse(1), "http://foo/db/data/transaction/1")
},
{
rollbackTransactionRequest, MockResponse.Json(404, "{\"results\":[],\"errors\":[{\"code\":\"Neo.ClientError.Transaction.UnknownId\",\"message\":\"Unrecognized transaction id. Transaction may have timed out and been rolled back.\"}]}")
}
})
{
var client = testHarness.CreateGraphClient(version);
client.Connect();
try
{
using (var transaction = client.BeginTransaction())
{
client.Cypher.Match("n").Return(n => n.Count()).ExecuteWithoutResults();
}
Assert.Fail("Should not reach this code, as there is an expected exception.");
}
catch (ApplicationException ex)
{
Assert.That(ex.Message.Contains("404"));
}
}
}
public void BeginTransactionShouldFailWithLower20Versions()
{
using (var testHarness = new RestTestHarness())
{
var client = testHarness.CreateGraphClient(RestTestHarness.Neo4jVersion.Neo19);
client.Connect();
client.BeginTransaction();
}
}
public void BeginTransactionShouldFailWithLower20Versions()
{
using (var testHarness = new RestTestHarness())
{
var client = testHarness.CreateGraphClient(false);
client.Connect();
client.BeginTransaction();
}
}
public void BeginTransactionShouldFailWithLower20Versions()
{
using (var testHarness = new RestTestHarness())
{
var client = testHarness.CreateGraphClient(RestTestHarness.Neo4jVersion.Neo19);
client.Connect();
Assert.That(() => client.BeginTransaction(), Throws.TypeOf <NotSupportedException>());
}
}
public void BeginTransactionShouldFailWithLower20Versions()
{
using (var testHarness = new RestTestHarness())
{
var client = testHarness.CreateGraphClient(RestTestHarness.Neo4jVersion.Neo19);
client.Connect();
Assert.That(() => client.BeginTransaction(), Throws.TypeOf<NotSupportedException>());
}
}
public async Task BeginTransactionShouldFailWithLower20Versions()
{
using (var testHarness = new RestTestHarness())
{
var client = testHarness.CreateGraphClient(RestTestHarness.Neo4jVersion.Neo19);
await client.ConnectAsync();
Assert.Throws <NotSupportedException>(() => client.BeginTransaction());
}
}
//https://github.com/Readify/Neo4jClient/issues/127
public void ReturnsThe404_WhenVersionIsLessThan_2_2_6([Values(RestTestHarness.Neo4jVersion.Neo20, RestTestHarness.Neo4jVersion.Neo22, RestTestHarness.Neo4jVersion.Neo225)] RestTestHarness.Neo4jVersion version)
{
var initTransactionRequest = MockRequest.PostJson("/transaction", @"{
'statements': [{'statement': 'MATCH n\r\nRETURN count(n)', 'resultDataContents':[], 'parameters': {}}]}");
var rollbackTransactionRequest = MockRequest.Delete("/transaction/1");
using (var testHarness = new RestTestHarness
{
{
initTransactionRequest,
MockResponse.Json(201, TransactionRestResponseHelper.GenerateCypherErrorResponse(1, "{\"code\":\"Neo.ClientError.Schema.ConstraintViolation\",\"message\":\"Node 19572 already exists with label User and property.\"}"), "http://foo/db/data/transaction/1")
},
{
rollbackTransactionRequest, MockResponse.Json(404, "{\"results\":[],\"errors\":[{\"code\":\"Neo.ClientError.Transaction.UnknownId\",\"message\":\"Unrecognized transaction id. Transaction may have timed out and been rolled back.\"}]}")
}
})
{
var client = testHarness.CreateGraphClient(version);
client.Connect();
try
{
using (var transaction = client.BeginTransaction())
{
client.Cypher.Match("n").Return(n => n.Count()).ExecuteWithoutResults();
}
}
catch (ApplicationException ex)
{
Assert.That(ex.Message.Contains("404"));
}
}
}