update

Gopkg.toml

@@ -0,0 +1,34 @@
+
+# Gopkg.toml example
+#
+# Refer to https://github.com/golang/dep/blob/master/docs/Gopkg.toml.md
+# for detailed Gopkg.toml documentation.
+#
+# required = ["github.com/user/thing/cmd/thing"]
+# ignored = ["github.com/user/project/pkgX", "bitbucket.org/user/project/pkgA/pkgY"]
+#
+# [[constraint]]
+#   name = "github.com/user/project"
+#   version = "1.0.0"
+#
+# [[constraint]]
+#   name = "github.com/user/project2"
+#   branch = "dev"
+#   source = "github.com/myfork/project2"
+#
+# [[override]]
+#  name = "github.com/x/y"
+#  version = "2.4.0"
+
+
+[[constraint]]
+  name = "github.com/prometheus/client_golang"
+  version = "0.8.0"
+
+[[constraint]]
+  name = "github.com/sony/gobreaker"
+  branch = "master"
+
+[[constraint]]
+  name = "github.com/stretchr/testify"
+  version = "1.2.1"

command.go

@@ -20,10 +20,6 @@ type command struct {
 var (
 	// errPanic is returned when goroutine panics
 	errPanic = errors.New("command panics")
-	// errTooManyRequests is returned when the CB state is half open and the requests count is over the cb maxRequests
-	errTooManyRequests = errors.New("too many requests")
-	// errOpenState is returned when the CB state is open
-	errOpenState = errors.New("circuit breaker is open")
 )
 
 // errorWithFallback process error and fallback logic, with prometheus metrics
@@ -66,9 +62,9 @@ func errorToEvent(err error) string {
 		event = "context-deadline-exceeded"
 	case context.Canceled:
 		event = "context-cancled"
-	case errTooManyRequests:
+	case gobreaker.ErrTooManyRequests:
 		event = "too-many-requests"
-	case errOpenState:
+	case gobreaker.ErrOpenState:
 		event = "circuit-open"
 	case errPanic:
 		event = "panic"

command_test.go

@@ -9,4 +9,6 @@ import (
 
 func TestErrorToEvent(t *testing.T) {
 	assert.Equal(t, "too-many-requests", errorToEvent(gobreaker.ErrTooManyRequests))
+	assert.Equal(t, "circuit-open", errorToEvent(gobreaker.ErrOpenState))
+	assert.Equal(t, "success", errorToEvent(nil))
 }