micro/network/router/table_test.go

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package router
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import "testing"
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func testSetup() (*table, Route) {
table := newTable()
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route := Route{
Service: "dest.svc",
Gateway: "dest.gw",
Network: "dest.network",
Link: "det.link",
Metric: 10,
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}
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return table, route
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}
func TestCreate(t *testing.T) {
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table, route := testSetup()
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if err := table.Create(route); err != nil {
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t.Errorf("error adding route: %s", err)
}
// adds new route for the original destination
route.Gateway = "dest.gw2"
if err := table.Create(route); err != nil {
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t.Errorf("error adding route: %s", err)
}
// adding the same route under Insert policy must error
if err := table.Create(route); err != ErrDuplicateRoute {
t.Errorf("error adding route. Expected error: %s, found: %s", ErrDuplicateRoute, err)
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}
}
func TestDelete(t *testing.T) {
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table, route := testSetup()
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if err := table.Create(route); err != nil {
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t.Errorf("error adding route: %s", err)
}
// should fail to delete non-existant route
prevSvc := route.Service
route.Service = "randDest"
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if err := table.Delete(route); err != ErrRouteNotFound {
t.Errorf("error deleting route. Expected: %s, found: %s", ErrRouteNotFound, err)
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}
// we should be able to delete the existing route
route.Service = prevSvc
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if err := table.Delete(route); err != nil {
t.Errorf("error deleting route: %s", err)
}
}
func TestUpdate(t *testing.T) {
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table, route := testSetup()
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if err := table.Create(route); err != nil {
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t.Errorf("error adding route: %s", err)
}
// change the metric of the original route
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route.Metric = 200
if err := table.Update(route); err != nil {
t.Errorf("error updating route: %s", err)
}
// this should add a new route
route.Service = "rand.dest"
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if err := table.Update(route); err != nil {
t.Errorf("error updating route: %s", err)
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}
}
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func TestList(t *testing.T) {
table, route := testSetup()
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svc := []string{"one.svc", "two.svc", "three.svc"}
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for i := 0; i < len(svc); i++ {
route.Service = svc[i]
if err := table.Create(route); err != nil {
t.Errorf("error adding route: %s", err)
}
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}
routes, err := table.List()
if err != nil {
t.Errorf("error listing routes: %s", err)
}
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if len(routes) != len(svc) {
t.Errorf("incorrect number of routes listed. Expected: %d, found: %d", len(svc), len(routes))
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}
}
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func TestLookup(t *testing.T) {
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table, route := testSetup()
svc := []string{"svc1", "svc2", "svc3"}
net := []string{"net1", "net2", "net1"}
gw := []string{"gw1", "gw2", "gw3"}
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for i := 0; i < len(svc); i++ {
route.Service = svc[i]
route.Network = net[i]
route.Gateway = gw[i]
if err := table.Create(route); err != nil {
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t.Errorf("error adding route: %s", err)
}
}
// return all routes
query := NewQuery()
routes, err := table.Lookup(query)
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if err != nil {
t.Errorf("error looking up routes: %s", err)
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}
// query particular net
query = NewQuery(QueryNetwork("net1"))
routes, err = table.Lookup(query)
if err != nil {
t.Errorf("error looking up routes: %s", err)
}
if len(routes) != 2 {
t.Errorf("incorrect number of routes returned. Expected: %d, found: %d", 2, len(routes))
}
// query particular gateway
gateway := "gw1"
query = NewQuery(QueryGateway(gateway))
routes, err = table.Lookup(query)
if err != nil {
t.Errorf("error looking up routes: %s", err)
}
if len(routes) != 1 {
t.Errorf("incorrect number of routes returned. Expected: %d, found: %d", 1, len(routes))
}
if routes[0].Gateway != gateway {
t.Errorf("incorrect route returned. Expected gateway: %s, found: %s", gateway, routes[0].Gateway)
}
// query particular route
network := "net1"
query = NewQuery(
QueryGateway(gateway),
QueryNetwork(network),
)
routes, err = table.Lookup(query)
if err != nil {
t.Errorf("error looking up routes: %s", err)
}
if len(routes) != 1 {
t.Errorf("incorrect number of routes returned. Expected: %d, found: %d", 1, len(routes))
}
if routes[0].Gateway != gateway {
t.Errorf("incorrect route returned. Expected gateway: %s, found: %s", gateway, routes[0].Gateway)
}
if routes[0].Network != network {
t.Errorf("incorrect network returned. Expected network: %s, found: %s", network, routes[0].Network)
}
// bullshit route query
query = NewQuery(QueryService("foobar"))
routes, err = table.Lookup(query)
if err != ErrRouteNotFound {
t.Errorf("error looking up routes. Expected: %s, found: %s", ErrRouteNotFound, err)
}
if len(routes) != 0 {
t.Errorf("incorrect number of routes returned. Expected: %d, found: %d", 0, len(routes))
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}
}