Add smoke tests that run in CI

.circleci/config.yml

@@ -0,0 +1,13 @@
+version: 2
+
+jobs:
+  build:
+    docker:
+      - image: tinygo/tinygo-dev
+    working_directory: /usr/local/go/src/github.com/aykevl/go-bluetooth
+    steps:
+      - checkout
+      - run: tinygo version
+      - run:
+          name: "Run smoke tests"
+          command: make smoketest

.gitignore

@@ -0,0 +1 @@
+test.hex

Makefile

@@ -0,0 +1,17 @@
+
+TINYGO=tinygo
+
+smoketest:
+	# Test all examples (and some boards)
+	$(TINYGO) build -o test.hex -size=short -target=pca10040-s132v6       ./examples/advertisement
+	@md5sum test.hex
+	$(TINYGO) build -o test.hex -size=short -target=pca10040-s132v6       ./examples/heartrate
+	@md5sum test.hex
+	$(TINYGO) build -o test.hex -size=short -target=reelboard-s140v7      ./examples/ledcolor
+	@md5sum test.hex
+	# Test some more boards that are not tested above.
+	$(TINYGO) build -o test.hex -size=short -target=pca10056-s140v7       ./examples/advertisement
+	@md5sum test.hex
+	# Test on the host
+	go build -o /tmp/go-build-discard ./examples/advertisement
+	go build -o /tmp/go-build-discard ./examples/heartrate

README.md

@@ -1,5 +1,7 @@
 # Go Bluetooth
 
+[![CircleCI](https://circleci.com/gh/aykevl/go-bluetooth/tree/master.svg?style=svg)](https://circleci.com/gh/aykevl/go-bluetooth/tree/master)
+
 Bluetooth API for embedded devices.
 
 This package attempts to build a cross-system Bluetooth API written in Go. It

examples/ledcolor/main.go

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+package main
+
+import (
+	"machine"
+	"time"
+
+	"github.com/aykevl/go-bluetooth"
+)
+
+// flags + local name
+var advPayload = []byte("\x02\x01\x06" + "\x0b\x09LED colors")
+
+// TODO: use atomics to access this value.
+var ledColor = [3]byte{0xff, 0x00, 0x00} // start out with red
+var leds = [3]machine.Pin{machine.LED_RED, machine.LED_GREEN, machine.LED_BLUE}
+var hasColorChange = true
+
+var (
+	serviceUUID = [16]byte{0xa0, 0xb4, 0x00, 0x01, 0x92, 0x6d, 0x4d, 0x61, 0x98, 0xdf, 0x8c, 0x5c, 0x62, 0xee, 0x53, 0xb3}
+	charUUID    = [16]byte{0xa0, 0xb4, 0x00, 0x02, 0x92, 0x6d, 0x4d, 0x61, 0x98, 0xdf, 0x8c, 0x5c, 0x62, 0xee, 0x53, 0xb3}
+)
+
+func main() {
+	println("starting")
+	adapter, err := bluetooth.DefaultAdapter()
+	must("get default adapter", err)
+	adapter.SetEventHandler(handleBluetoothEvents)
+	must("enable SD", adapter.Enable())
+	adv := adapter.NewAdvertisement()
+	options := &bluetooth.AdvertiseOptions{
+		Interval: bluetooth.NewAdvertiseInterval(100),
+	}
+	must("config adv", adv.Configure(advPayload, nil, options))
+	must("start adv", adv.Start())
+
+	var ledColorCharacteristic bluetooth.Characteristic
+	must("add service", adapter.AddService(&bluetooth.Service{
+		UUID: bluetooth.NewUUID(serviceUUID),
+		Characteristics: []bluetooth.CharacteristicConfig{
+			{
+				Handle: &ledColorCharacteristic,
+				UUID:   bluetooth.NewUUID(charUUID),
+				Value:  ledColor[:],
+				Flags:  bluetooth.CharacteristicReadPermission | bluetooth.CharacteristicWritePermission,
+				WriteEvent: func(client bluetooth.Connection, offset int, value []byte) {
+					if offset != 0 || len(value) != 3 {
+						return
+					}
+					ledColor[0] = value[0]
+					ledColor[1] = value[1]
+					ledColor[2] = value[2]
+					hasColorChange = true
+				},
+			},
+		},
+	}))
+
+	for _, led := range leds {
+		led.Configure(machine.PinConfig{Mode: machine.PinOutput})
+	}
+
+	for {
+		for !hasColorChange {
+			time.Sleep(10 * time.Millisecond)
+		}
+		hasColorChange = false
+		for i, led := range leds {
+			led.Set(ledColor[i] == 0)
+		}
+	}
+}
+
+func must(action string, err error) {
+	if err != nil {
+		panic("failed to " + action + ": " + err.Error())
+	}
+}
+
+// handleBluetoothEvents prints BLE events as they happen.
+func handleBluetoothEvents(evt bluetooth.Event) {
+	switch evt := evt.(type) {
+	case *bluetooth.ConnectEvent:
+		println("evt: connected", evt.Connection)
+	case *bluetooth.DisconnectEvent:
+		println("evt: disconnected", evt.Connection)
+	default:
+		println("evt: unknown")
+	}
+}