package agent import ( "github.com/hashicorp/consul/consul/structs" "log" "os" "testing" "time" ) type MockNotify struct { state map[string]string updates map[string]int output map[string]string } func (m *MockNotify) UpdateCheck(id, status, output string) { m.state[id] = status old := m.updates[id] m.updates[id] = old + 1 m.output[id] = output } func expectStatus(t *testing.T, script, status string) { mock := &MockNotify{ state: make(map[string]string), updates: make(map[string]int), output: make(map[string]string), } check := &CheckMonitor{ Notify: mock, CheckID: "foo", Script: script, Interval: 10 * time.Millisecond, Logger: log.New(os.Stderr, "", log.LstdFlags), } check.Start() defer check.Stop() time.Sleep(50 * time.Millisecond) // Should have at least 2 updates if mock.updates["foo"] < 2 { t.Fatalf("should have 2 updates %v", mock.updates) } if mock.state["foo"] != status { t.Fatalf("should be %v %v", status, mock.state) } } func TestCheckMonitor_Passing(t *testing.T) { expectStatus(t, "exit 0", structs.HealthPassing) } func TestCheckMonitor_Warning(t *testing.T) { expectStatus(t, "exit 1", structs.HealthWarning) } func TestCheckMonitor_Critical(t *testing.T) { expectStatus(t, "exit 2", structs.HealthCritical) } func TestCheckMonitor_BadCmd(t *testing.T) { expectStatus(t, "foobarbaz", structs.HealthCritical) } func TestCheckMonitor_LimitOutput(t *testing.T) { mock := &MockNotify{ state: make(map[string]string), updates: make(map[string]int), output: make(map[string]string), } check := &CheckMonitor{ Notify: mock, CheckID: "foo", Script: "dd if=/dev/urandom bs=8192 count=10", Interval: 25 * time.Millisecond, Logger: log.New(os.Stderr, "", log.LstdFlags), } check.Start() defer check.Stop() time.Sleep(50 * time.Millisecond) // Allow for extra bytes for the truncation message if len(mock.output["foo"]) > CheckBufSize+100 { t.Fatalf("output size is too long") } } func TestCheckTTL(t *testing.T) { mock := &MockNotify{ state: make(map[string]string), updates: make(map[string]int), output: make(map[string]string), } check := &CheckTTL{ Notify: mock, CheckID: "foo", TTL: 100 * time.Millisecond, Logger: log.New(os.Stderr, "", log.LstdFlags), } check.Start() defer check.Stop() time.Sleep(50 * time.Millisecond) check.SetStatus(structs.HealthPassing, "") if mock.updates["foo"] != 1 { t.Fatalf("should have 1 updates %v", mock.updates) } if mock.state["foo"] != structs.HealthPassing { t.Fatalf("should be passing %v", mock.state) } // Ensure we don't fail early time.Sleep(75 * time.Millisecond) if mock.updates["foo"] != 1 { t.Fatalf("should have 1 updates %v", mock.updates) } // Wait for the TTL to expire time.Sleep(75 * time.Millisecond) if mock.updates["foo"] != 2 { t.Fatalf("should have 2 updates %v", mock.updates) } if mock.state["foo"] != structs.HealthCritical { t.Fatalf("should be critical %v", mock.state) } }