public ReplaceRelationshipsCommandTests()
{
ReplaceRelationshipsCommand = new ReplaceRelationshipsCommand
{
SourceIdPropertyName = $"{nameof(ReplaceRelationshipsCommand.SourceIdPropertyName)}",
SourceIdPropertyValue = $"{nameof(ReplaceRelationshipsCommand.SourceIdPropertyValue)}",
SourceNodeLabels = { "SourceNodeLabel" }
};
}
public async Task ReplaceRelationships_CreateSingleNewRelationship_NoExistingRelationships_Test()
{
const string sourceNodeLabel = "sourceNodeLabel";
const string sourceIdPropertyName = "sourceId";
string sourceIdPropertyValue = Guid.NewGuid().ToString();
const string destNodeLabel = "destNodeLabel";
const string destIdPropertyName = "destId";
string destIdPropertyValue = Guid.NewGuid().ToString();
const string relationshipType = "relationshipType";
const string relationshipVariable = "r";
//todo: arrange without any of the cut?
// create source node to create relationship from
long sourceNodeId = await MergeNode(sourceNodeLabel, sourceIdPropertyName,
new Dictionary <string, object> {
{ sourceIdPropertyName, sourceIdPropertyValue }
});
// create destination node to create relationship to
long destNodeId = await MergeNode(destNodeLabel, destIdPropertyName,
new Dictionary <string, object> {
{ destIdPropertyName, destIdPropertyValue }
});
// act
var command = new ReplaceRelationshipsCommand
{
SourceNodeLabels = new HashSet <string> {
sourceNodeLabel
},
SourceIdPropertyName = sourceIdPropertyName,
SourceIdPropertyValue = sourceIdPropertyValue
};
command.AddRelationshipsTo(
relationshipType, null,
new[] { destNodeLabel },
destIdPropertyName,
destIdPropertyValue);
await _graphDatabase.RunWriteQueries(command);
AssertResult(relationshipVariable, new[]
{
new ExpectedRelationship
{
Type = relationshipType,
StartNodeId = sourceNodeId,
EndNodeId = destNodeId,
Properties = new Dictionary <string, object>()
}
}, await AllRelationships(sourceNodeLabel, sourceIdPropertyName, sourceIdPropertyValue,
relationshipType, destNodeLabel, relationshipVariable));
}
public async Task ReplaceRelationships_CreateSingleNewRelationship_ExistingRelationship_Test()
{
const string sourceNodeLabel = "sourceNodeLabel";
const string sourceIdPropertyName = "sourceId";
string sourceIdPropertyValue = Guid.NewGuid().ToString();
const string destNodeLabel = "destNodeLabel";
const string destIdPropertyName = "destId";
string destIdPropertyValue = Guid.NewGuid().ToString();
string preexistingDestIdPropertyValue = Guid.NewGuid().ToString();
const string relationshipType = "relationshipType";
const string relationshipVariable = "r";
// create source node to create relationship from
long sourceNodeId = await MergeNode(sourceNodeLabel, sourceIdPropertyName,
new Dictionary <string, object> {
{ sourceIdPropertyName, sourceIdPropertyValue }
});
// create destination node for preexisting relationship
await MergeNode(destNodeLabel, destIdPropertyName,
new Dictionary <string, object> {
{ destIdPropertyName, preexistingDestIdPropertyValue }
});
// create destination node to create new relationship to
long destNodeId = await MergeNode(destNodeLabel, destIdPropertyName,
new Dictionary <string, object> {
{ destIdPropertyName, destIdPropertyValue }
});
// create pre-existing relationships
var preexistingQuery = new ReplaceRelationshipsCommand
{
SourceNodeLabels = new HashSet <string> {
sourceNodeLabel
},
SourceIdPropertyName = sourceIdPropertyName,
SourceIdPropertyValue = sourceIdPropertyValue
};
preexistingQuery.AddRelationshipsTo(relationshipType, null, new [] { destNodeLabel }, destIdPropertyName, destIdPropertyValue);
await _graphDatabase.RunWriteQueries(preexistingQuery);
// act
//todo: change dest node?
var query = new ReplaceRelationshipsCommand
{
SourceNodeLabels = new HashSet <string> {
sourceNodeLabel
},
SourceIdPropertyName = sourceIdPropertyName,
SourceIdPropertyValue = sourceIdPropertyValue
};
query.AddRelationshipsTo(relationshipType, null, new [] { destNodeLabel }, destIdPropertyName, destIdPropertyValue);
await _graphDatabase.RunWriteQueries(query);
AssertResult(relationshipVariable, new[]
{
new ExpectedRelationship
{
Type = relationshipType,
StartNodeId = sourceNodeId,
EndNodeId = destNodeId,
Properties = new Dictionary <string, object>()
}
}, await AllRelationships(sourceNodeLabel, sourceIdPropertyName, sourceIdPropertyValue,
relationshipType, destNodeLabel, relationshipVariable));
}
