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statsd_admin_spec.rb
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statsd_admin_spec.rb
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require 'helper'
describe Statsd::Admin do
class Statsd::Admin
public :socket
end
before do
@admin = Statsd::Admin.new('localhost', 1234)
@socket = Thread.current[:statsd_admin_socket] = FakeTCPSocket.new
end
after { Thread.current[:statsd_socket] = nil }
describe "#initialize" do
it "should set the host and port" do
@admin.host.must_equal 'localhost'
@admin.port.must_equal 1234
end
it "should default the host to 127.0.0.1 and port to 8126" do
statsd = Statsd::Admin.new
statsd.host.must_equal '127.0.0.1'
statsd.port.must_equal 8126
end
end
describe "#host and #port" do
it "should set host and port" do
@admin.host = '1.2.3.4'
@admin.port = 5678
@admin.host.must_equal '1.2.3.4'
@admin.port.must_equal 5678
end
it "should not resolve hostnames to IPs" do
@admin.host = 'localhost'
@admin.host.must_equal 'localhost'
end
it "should set nil host to default" do
@admin.host = nil
@admin.host.must_equal '127.0.0.1'
end
it "should set nil port to default" do
@admin.port = nil
@admin.port.must_equal 8126
end
end
%w(gauges counters timers).each do |action|
describe "##{action}" do
it "should send a command and return a Hash" do
["{'foo.bar': 0,\n",
"'foo.baz': 1,\n",
"'foo.quux': 2 }\n",
"END\n","\n"].each do |line|
@socket.write line
end
result = @admin.send action.to_sym
result.must_be_kind_of Hash
result.size.must_equal 3
@socket.readline.must_equal "#{action}\n"
end
end
describe "#del#{action}" do
it "should send a command and return an Array" do
["deleted: foo.bar\n",
"deleted: foo.baz\n",
"deleted: foo.quux\n",
"END\n", "\n"].each do |line|
@socket.write line
end
result = @admin.send "del#{action}", "foo.*"
result.must_be_kind_of Array
result.size.must_equal 3
@socket.readline.must_equal "del#{action} foo.*\n"
end
end
end
describe "#stats" do
it "should send a command and return a Hash" do
["whatever: 0\n", "END\n", "\n"].each do |line|
@socket.write line
end
result = @admin.stats
result.must_be_kind_of Hash
result["whatever"].must_equal 0
@socket.readline.must_equal "stats\n"
end
end
end