func testWatchServices(s store.Store, t *testing.T) {
check := func(opts store.QueryServiceOptions, body func(w *watcher), changes ...data.ServiceChange) {
w := newWatcher(s, opts)
body(w)
// Yuck. There's a race between making a change in
// etcd, and hearing about it via the watch, and I
// haven't found a nicer way to avoid it.
time.Sleep(100 * time.Millisecond)
w.stop()
require.Equal(t, changes, w.changes)
require.Nil(t, s.RemoveAllServices())
}
check(store.QueryServiceOptions{}, func(w *watcher) {
require.Nil(t, s.AddService("svc", testService))
}, data.ServiceChange{"svc", false})
require.Nil(t, s.AddService("svc", testService))
check(store.QueryServiceOptions{}, func(w *watcher) {
require.Nil(t, s.RemoveAllServices())
require.Nil(t, s.AddService("svc", testService))
require.Nil(t, s.RemoveService("svc"))
}, data.ServiceChange{"svc", true}, data.ServiceChange{"svc", false},
data.ServiceChange{"svc", true})
// WithInstances false, so adding an instance should not
// cause an event
require.Nil(t, s.AddService("svc", testService))
check(store.QueryServiceOptions{}, func(w *watcher) {
require.Nil(t, s.AddInstance("svc", "inst", testInst))
})
// WithInstances true, so instance changes should
// cause events
require.Nil(t, s.AddService("svc", testService))
check(store.QueryServiceOptions{WithInstances: true},
func(w *watcher) {
require.Nil(t, s.AddInstance("svc", "inst", testInst))
require.Nil(t, s.RemoveInstance("svc", "inst"))
}, data.ServiceChange{"svc", false},
data.ServiceChange{"svc", false})
// WithContainerRules false, so adding a rule should not
// cause an event
require.Nil(t, s.AddService("svc", testService))
check(store.QueryServiceOptions{}, func(w *watcher) {
require.Nil(t, s.SetContainerRule("svc", "group", testRule))
})
// WithContainerRules true, so instance changes should
// cause events
require.Nil(t, s.AddService("svc", testService))
check(store.QueryServiceOptions{WithContainerRules: true},
func(w *watcher) {
require.Nil(t, s.SetContainerRule("svc", "group", testRule))
require.Nil(t, s.RemoveContainerRule("svc", "group"))
}, data.ServiceChange{"svc", false},
data.ServiceChange{"svc", false})
}
func addGroup(st store.Store, serviceName string, addr *data.AddressSpec, labels ...string) {
if len(labels)%2 != 0 {
panic("Expected key value ... as arguments")
}
sel := make(map[string]string)
for i := 0; i < len(labels); i += 2 {
sel[labels[i]] = labels[i+1]
}
if addr == nil {
addr = &data.AddressSpec{"fixed", 80}
}
st.SetContainerRule(serviceName, GROUP, data.ContainerRule{*addr, sel})
}
func testRules(s store.Store, t *testing.T) {
require.Nil(t, s.AddService("svc", testService))
require.Nil(t, s.SetContainerRule("svc", "group", testRule))
svc, err := s.GetService("svc", store.QueryServiceOptions{WithContainerRules: true})
require.Nil(t, err)
require.Equal(t, []store.ContainerRuleInfo{
store.ContainerRuleInfo{
Name: "group",
ContainerRule: testRule,
},
}, svc.ContainerRules)
require.Nil(t, s.RemoveContainerRule("svc", "group"))
svc, err = s.GetService("svc", store.QueryServiceOptions{WithContainerRules: true})
require.Nil(t, err)
require.Empty(t, svc.ContainerRules)
}