def get_usage(tenant_id, date_start, date_end)
response = Excon::Response.new
response.status = 200
response.body = {"tenant_usage" =>
{"total_memory_mb_usage" => 0.0,
"total_vcpus_usage" => 0.0,
"total_hours" => 0.0,
"tenant_id" => tenant_id,
"stop" => date_start,
"start" => date_end,
"total_local_gb_usage" => 0.0,
"server_usages" => [{
"hours" => 0.0,
"uptime" => 69180,
"local_gb" => 0,
"ended_at" => nil,
"name" => "test server",
"tenant_id" => tenant_id,
"vcpus" => 1,
"memory_mb" => 512,
"state" => "active",
"flavor" => "m1.tiny",
"started_at" => "2012-03-05 09:11:44"
}]}}
response
end