Add integration tests for binary modules

test/integration/library/helloworld.go

@@ -0,0 +1,74 @@
+package main
+
+import (
+	"encoding/json"
+	"fmt"
+	"io/ioutil"
+	"os"
+)
+
+type ModuleArgs struct {
+	Name string
+}
+
+type Response struct {
+	Msg     string `json:"msg"`
+	Changed bool   `json:"changed"`
+	Failed  bool   `json:"failed"`
+}
+
+func ExitJson(responseBody Response) {
+	returnResponse(responseBody)
+}
+
+func FailJson(responseBody Response) {
+	responseBody.Failed = true
+	returnResponse(responseBody)
+}
+
+func returnResponse(responseBody Response) {
+	var response []byte
+	var err error
+	response, err = json.Marshal(responseBody)
+	if err != nil {
+		response, _ = json.Marshal(Response{Msg: "Invalid response object"})
+	}
+	fmt.Println(string(response))
+	if responseBody.Failed {
+		os.Exit(1)
+	} else {
+		os.Exit(0)
+	}
+}
+
+func main() {
+	var response Response
+
+	if len(os.Args) != 2 {
+		response.Msg = "No argument file provided"
+		FailJson(response)
+	}
+
+	argsFile := os.Args[1]
+
+	text, err := ioutil.ReadFile(argsFile)
+	if err != nil {
+		response.Msg = "Could not read configuration file: " + argsFile
+		FailJson(response)
+	}
+
+	var moduleArgs ModuleArgs
+	err = json.Unmarshal(text, &moduleArgs)
+	if err != nil {
+		response.Msg = "Configuration file not valid JSON: " + argsFile
+		FailJson(response)
+	}
+
+	var name string = "World"
+	if moduleArgs.Name != "" {
+		name = moduleArgs.Name
+	}
+
+	response.Msg = "Hello, " + name + "!"
+	ExitJson(response)
+}