diff options
Diffstat (limited to 'test/session_test.rb')
| -rw-r--r-- | test/session_test.rb | 334 |
1 files changed, 334 insertions, 0 deletions
diff --git a/test/session_test.rb b/test/session_test.rb new file mode 100644 index 0000000..18afea9 --- /dev/null +++ b/test/session_test.rb @@ -0,0 +1,334 @@ +require 'common' +require 'net/ssh/multi/session' + +class SessionTest < Test::Unit::TestCase + def setup + @session = Net::SSH::Multi::Session.new + end + + def test_group_should_fail_when_given_both_mapping_and_block + assert_raises(ArgumentError) do + @session.group(:app => mock('server')) { |s| } + end + end + + def test_group_with_block_should_use_groups_within_block_and_restore_on_exit + @session.open_groups.concat([:first, :second]) + assert_equal [:first, :second], @session.open_groups + yielded = nil + @session.group(:third, :fourth) do |s| + yielded = s + assert_equal [:first, :second, :third, :fourth], @session.open_groups + end + assert_equal [:first, :second], @session.open_groups + assert_equal @session, yielded + end + + def test_group_with_mapping_should_append_new_servers_to_specified_and_open_groups + @session.open_groups.concat([:first, :second]) + @session.groups[:second] = [1] + @session.group %w(third fourth) => [2, 3], :fifth => 1, :sixth => [4] + assert_equal [1, 2, 3, 4], @session.groups[:first].sort + assert_equal [1, 2, 3, 4], @session.groups[:second].sort + assert_equal [2, 3], @session.groups[:third] + assert_equal [2, 3], @session.groups[:fourth] + assert_equal [1], @session.groups[:fifth] + assert_equal [4], @session.groups[:sixth] + end + + def test_via_should_instantiate_and_set_default_gateway + Net::SSH::Gateway.expects(:new).with('host', 'user', :a => :b).returns(:gateway) + assert_equal @session, @session.via('host', 'user', :a => :b) + assert_equal :gateway, @session.default_gateway + end + + def test_use_should_add_new_server_to_server_list + @session.open_groups.concat([:first, :second]) + server = @session.use('host', 'user', :a => :b) + assert_equal [server], @session.servers + assert_equal 'host', server.host + assert_equal 'user', server.user + assert_equal({:a => :b}, server.options) + assert_nil server.gateway + end + + def test_use_with_open_groups_should_add_new_server_to_server_list_and_groups + @session.open_groups.concat([:first, :second]) + server = @session.use('host', 'user') + assert_equal [server], @session.groups[:first] + assert_equal [server], @session.groups[:second] + end + + def test_use_with_default_gateway_should_set_gateway_on_server + Net::SSH::Gateway.expects(:new).with('host', 'user', {}).returns(:gateway) + @session.via('host', 'user') + server = @session.use('host2', 'user2') + assert_equal :gateway, server.gateway + end + + def test_use_with_duplicate_server_will_not_add_server_twice + s1 = @session.use('host', 'user') + s2 = @session.use('host', 'user') + assert_equal 1, @session.servers.length + assert_equal s1.object_id, s2.object_id + end + + def test_with_should_set_active_groups_and_yield_and_restore_active_groups + yielded = nil + @session.with(:app, :web) do |s| + yielded = s + assert_equal({:app => {}, :web => {}}, @session.active_groups) + end + assert_equal @session, yielded + assert_equal({}, @session.active_groups) + end + + def test_with_with_unknown_constraint_should_raise_error + assert_raises(ArgumentError) do + @session.with(:app => { :all => :foo }) {} + end + end + + def test_with_with_constraints_should_add_constraints_to_active_groups + @session.with(:app => { :only => { :primary => true }, :except => { :backup => true } }) do |s| + assert_equal({:app => {:only => {:primary => true}, :except => {:backup => true}}}, @session.active_groups) + end + end + + def test_on_should_create_ad_hoc_group_and_make_that_group_the_only_active_group + s1 = @session.use('h1', 'u1') + s2 = @session.use('h2', 'u2') + yielded = nil + @session.active_groups[:g1] = [] + @session.on(s1, s2) do |s| + yielded = s + assert_equal 1, @session.active_groups.size + assert_not_equal :g1, @session.active_groups.keys.first + assert_equal [s1, s2], @session.groups[@session.active_groups.keys.first] + end + assert_equal [:g1], @session.active_groups.keys + assert_equal @session, yielded + end + + def test_active_sessions_should_return_sessions_for_all_servers_if_active_groups_is_empty + s1, s2, s3 = MockSession.new, MockSession.new, MockSession.new + srv1, srv2, srv3 = @session.use('h1', 'u1'), @session.use('h2', 'u2'), @session.use('h3', 'u3') + Net::SSH.expects(:start).with('h1', 'u1', {}).returns(s1) + Net::SSH.expects(:start).with('h2', 'u2', {}).returns(s2) + Net::SSH.expects(:start).with('h3', 'u3', {}).returns(s3) + assert_equal [s1, s2, s3], @session.active_sessions.sort + end + + def test_active_sessions_should_return_sessions_only_for_active_groups_if_active_groups_exist + s1, s2, s3 = MockSession.new, MockSession.new, MockSession.new + srv1, srv2, srv3 = @session.use('h1', 'u1'), @session.use('h2', 'u2'), @session.use('h3', 'u3') + @session.group :app => [srv1, srv2], :db => [srv3] + Net::SSH.expects(:start).with('h1', 'u1', {}).returns(s1) + Net::SSH.expects(:start).with('h2', 'u2', {}).returns(s2) + @session.active_groups.replace(:app => {}) + assert_equal [s1, s2], @session.active_sessions.sort + end + + def test_active_sessions_should_not_return_duplicate_sessions + s1, s2, s3 = MockSession.new, MockSession.new, MockSession.new + srv1, srv2, srv3 = @session.use('h1', 'u1'), @session.use('h2', 'u2'), @session.use('h3', 'u3') + @session.group :app => [srv1, srv2], :db => [srv2, srv3] + Net::SSH.expects(:start).with('h1', 'u1', {}).returns(s1) + Net::SSH.expects(:start).with('h2', 'u2', {}).returns(s2) + Net::SSH.expects(:start).with('h3', 'u3', {}).returns(s3) + @session.active_groups.replace(:app => {}, :db => {}) + assert_equal [s1, s2, s3], @session.active_sessions.sort + end + + def test_active_sessions_should_correctly_apply_only_and_except_constraints + s1, s2, s3 = MockSession.new, MockSession.new, MockSession.new + srv1, srv2, srv3 = @session.use('h1', 'u1', :properties => {:a => 1}), @session.use('h2', 'u2', :properties => {:a => 1, :b => 2}), @session.use('h3', 'u3') + @session.group :app => [srv1, srv2, srv3] + Net::SSH.expects(:start).with('h1', 'u1', :properties => {:a => 1}).returns(s1) + @session.active_groups.replace(:app => {:only => {:a => 1}, :except => {:b => 2}}) + assert_equal [s1], @session.active_sessions.sort + end + + def test_connect_bang_should_call_active_sessions_and_return_self + @session.expects(:active_sessions) + assert_equal @session, @session.connect! + end + + def test_close_should_close_server_sessions + srv1, srv2 = @session.use('h1', 'u1'), @session.use('h2', 'u2') + srv1.expects(:close_channels) + srv2.expects(:close_channels) + srv1.expects(:close) + srv2.expects(:close) + @session.close + end + + def test_close_should_shutdown_default_gateway + gateway = mock('gateway') + gateway.expects(:shutdown!) + Net::SSH::Gateway.expects(:new).returns(gateway) + @session.via('host', 'user') + @session.close + end + + def test_busy_should_be_true_if_any_server_is_busy + srv1, srv2, srv3 = @session.use('h1', 'u1', :properties => {:a => 1}), @session.use('h2', 'u2', :properties => {:a => 1, :b => 2}), @session.use('h3', 'u3') + srv1.stubs(:busy?).returns(false) + srv2.stubs(:busy?).returns(false) + srv3.stubs(:busy?).returns(true) + assert @session.busy? + end + + def test_busy_should_be_false_if_all_servers_are_not_busy + srv1, srv2, srv3 = @session.use('h1', 'u1', :properties => {:a => 1}), @session.use('h2', 'u2', :properties => {:a => 1, :b => 2}), @session.use('h3', 'u3') + srv1.stubs(:busy?).returns(false) + srv2.stubs(:busy?).returns(false) + srv3.stubs(:busy?).returns(false) + assert !@session.busy? + end + + def test_loop_should_loop_until_process_is_false + @session.expects(:process).with(5).times(4).returns(true,true,true,false).yields + yielded = false + @session.loop(5) { yielded = true } + assert yielded + end + + def test_preprocess_should_immediately_return_false_if_block_returns_false + srv = @session.use('h1', 'u1') + srv.expects(:preprocess).never + assert_equal false, @session.preprocess { false } + end + + def test_preprocess_should_call_preprocess_on_component_servers + srv = @session.use('h1', 'u1') + srv.expects(:preprocess) + assert_equal :hello, @session.preprocess { :hello } + end + + def test_preprocess_should_succeed_even_without_block + srv = @session.use('h1', 'u1') + srv.expects(:preprocess) + assert_equal true, @session.preprocess + end + + def test_postprocess_should_call_postprocess_on_component_servers + srv = @session.use('h1', 'u1') + srv.expects(:postprocess).with([:a], [:b]) + assert_equal true, @session.postprocess([:a], [:b]) + end + + def test_process_should_return_false_if_preprocess_returns_false + assert_equal false, @session.process { false } + end + + def test_process_should_call_select_on_combined_readers_and_writers_from_all_servers + @session.expects(:postprocess).with([:b, :c], [:a, :c]) + srv1, srv2, srv3 = @session.use('h1', 'u1'), @session.use('h2', 'u2'), @session.use('h3', 'u3') + srv1.expects(:readers).returns([:a]) + srv1.expects(:writers).returns([:a]) + srv2.expects(:readers).returns([]) + srv2.expects(:writers).returns([]) + srv3.expects(:readers).returns([:b, :c]) + srv3.expects(:writers).returns([:c]) + IO.expects(:select).with([:a, :b, :c], [:a, :c], nil, 5).returns([[:b, :c], [:a, :c]]) + @session.process(5) + end + + def test_send_global_request_should_delegate_to_active_sessions + s1 = mock('ssh') + s2 = mock('ssh') + s1.expects(:send_global_request).with("a", "b", "c").yields + s2.expects(:send_global_request).with("a", "b", "c").yields + @session.expects(:active_sessions).returns([s1, s2]) + calls = 0 + @session.send_global_request("a", "b", "c") { calls += 1 } + assert_equal 2, calls + end + + def test_open_channel_should_delegate_to_active_sessions_and_set_accessors_on_each_channel_and_return_multi_channel + srv1 = @session.use('h1', 'u1') + srv2 = @session.use('h2', 'u2') + s1 = { :server => srv1 } + s2 = { :server => srv2 } + c1 = {} + c2 = {} + @session.expects(:active_sessions).returns([s1, s2]) + s1.expects(:open_channel).with("session").yields(c1).returns(c1) + s2.expects(:open_channel).with("session").yields(c2).returns(c2) + results = [] + channel = @session.open_channel do |c| + results << c + end + assert_equal [c1, c2], results + assert_equal "h1", c1[:host] + assert_equal "h2", c2[:host] + assert_equal srv1, c1[:server] + assert_equal srv2, c2[:server] + assert_instance_of Net::SSH::Multi::Channel, channel + assert_equal [c1, c2], channel.channels + end + + def test_exec_should_raise_exception_if_channel_cannot_exec_command + c = { :host => "host" } + @session.expects(:open_channel).yields(c).returns(c) + c.expects(:exec).with('something').yields(c, false) + assert_raises(RuntimeError) { @session.exec("something") } + end + + def test_exec_with_block_should_pass_data_and_extended_data_to_block + c = { :host => "host" } + @session.expects(:open_channel).yields(c).returns(c) + c.expects(:exec).with('something').yields(c, true) + c.expects(:on_data).yields(c, "stdout") + c.expects(:on_extended_data).yields(c, 1, "stderr") + c.expects(:on_request) + results = {} + @session.exec("something") do |c, stream, data| + results[stream] = data + end + assert_equal({:stdout => "stdout", :stderr => "stderr"}, results) + end + + def test_exec_without_block_should_write_data_and_extended_data_lines_to_stdout_and_stderr + c = { :host => "host" } + @session.expects(:open_channel).yields(c).returns(c) + c.expects(:exec).with('something').yields(c, true) + c.expects(:on_data).yields(c, "stdout 1\nstdout 2\n") + c.expects(:on_extended_data).yields(c, 1, "stderr 1\nstderr 2\n") + c.expects(:on_request) + $stdout.expects(:puts).with("[host] stdout 1\n") + $stdout.expects(:puts).with("[host] stdout 2") + $stderr.expects(:puts).with("[host] stderr 1\n") + $stderr.expects(:puts).with("[host] stderr 2") + @session.exec("something") + end + + def test_exec_should_capture_exit_status_of_process + c = { :host => "host" } + @session.expects(:open_channel).yields(c).returns(c) + c.expects(:exec).with('something').yields(c, true) + c.expects(:on_data) + c.expects(:on_extended_data) + c.expects(:on_request).with("exit-status").yields(c, Net::SSH::Buffer.from(:long, 127)) + @session.exec("something") + assert_equal 127, c[:exit_status] + end + + private + + class MockSession < Hash + include Comparable + + @@next_id = 0 + attr_reader :id + + def initialize + @id = (@@next_id += 1) + end + + def <=>(s) + id <=> s.id + end + end +end
\ No newline at end of file |