Added a Makefile and used for CI.

.travis.yml

@@ -5,5 +5,7 @@ go:
   - tip
 
 install:
- # Needed for tip (394ac81)
-  - go get -t -v ./...
+  - make get-deps
+
+script:
+  - make test

Makefile

@@ -0,0 +1,13 @@
+.PHONY: test generate get-deps
+
+test: generate
+	go test -v -race ./...
+
+generate:
+	# stringer requires the packages to be installed.
+	go install -v
+	go generate -x ./...
+
+get-deps:
+	go get -t -v ./...
+	go get -u golang.org/x/tools/cmd/stringer

devicedescriptortype_string.go

@@ -1,4 +1,4 @@
-// generated by stringer -type=deviceDescriptorType; DO NOT EDIT
+// Code generated by "stringer -type=deviceDescriptorType"; DO NOT EDIT
 
 package adb
 
@@ -9,7 +9,7 @@ const _deviceDescriptorType_name = "DeviceAnyDeviceSerialDeviceUsbDeviceLocal"
 var _deviceDescriptorType_index = [...]uint8{0, 9, 21, 30, 41}
 
 func (i deviceDescriptorType) String() string {
-	if i < 0 || i+1 >= deviceDescriptorType(len(_deviceDescriptorType_index)) {
+	if i < 0 || i >= deviceDescriptorType(len(_deviceDescriptorType_index)-1) {
 		return fmt.Sprintf("deviceDescriptorType(%d)", i)
 	}
 	return _deviceDescriptorType_name[_deviceDescriptorType_index[i]:_deviceDescriptorType_index[i+1]]

devicestate_string.go

@@ -1,4 +1,4 @@
-// generated by stringer -type=DeviceState; DO NOT EDIT
+// Code generated by "stringer -type=DeviceState"; DO NOT EDIT
 
 package adb
 
@@ -9,7 +9,7 @@ const _DeviceState_name = "StateDisconnectedStateOfflineStateOnline"
 var _DeviceState_index = [...]uint8{0, 17, 29, 40}
 
 func (i DeviceState) String() string {
-	if i < 0 || i+1 >= DeviceState(len(_DeviceState_index)) {
+	if i < 0 || i >= DeviceState(len(_DeviceState_index)-1) {
 		return fmt.Sprintf("DeviceState(%d)", i)
 	}
 	return _DeviceState_name[_DeviceState_index[i]:_DeviceState_index[i+1]]

util/errcode_string.go

@@ -1,4 +1,4 @@
-// generated by stringer -type=ErrCode; DO NOT EDIT
+// Code generated by "stringer -type=ErrCode"; DO NOT EDIT
 
 package util
 
@@ -9,7 +9,7 @@ const _ErrCode_name = "AssertionErrorParseErrorServerNotAvailableNetworkErrorCon
 var _ErrCode_index = [...]uint8{0, 14, 24, 42, 54, 74, 82, 96, 112}
 
 func (i ErrCode) String() string {
-	if i+1 >= ErrCode(len(_ErrCode_index)) {
+	if i >= ErrCode(len(_ErrCode_index)-1) {
 		return fmt.Sprintf("ErrCode(%d)", i)
 	}
 	return _ErrCode_name[_ErrCode_index[i]:_ErrCode_index[i+1]]