chore: Add tests

api_test.go

@@ -0,0 +1,97 @@
+package main
+
+import (
+	"bytes"
+	"io/ioutil"
+	"log"
+	"net/http"
+	"net/http/httptest"
+	"os"
+	"testing"
+)
+
+func TestIndexHandler(t *testing.T) {
+	var (
+		httpClient = initClient()
+		notifier   = NewNotifier(*httpClient)
+		appConfig  = &App{notifier}
+	)
+
+	// Create a request to pass to our handler.
+	req, err := http.NewRequest("GET", "/", nil)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	// Create a ResponseRecorder (which satisfies http.ResponseWriter) to record the response.
+	rr := httptest.NewRecorder()
+	handler := http.Handler(Handler{appConfig, handleIndex})
+
+	// handler satisfy http.Handler since ServeHTTP is implemented
+	handler.ServeHTTP(rr, req)
+
+	// Check the status code is what we expect.
+	if status := rr.Code; status != http.StatusOK {
+		t.Errorf("handler returned wrong status code: got %v want %v",
+			status, http.StatusOK)
+	}
+}
+
+func TestHealthCheckHandler(t *testing.T) {
+	var (
+		httpClient = initClient()
+		notifier   = NewNotifier(*httpClient)
+		appConfig  = &App{notifier}
+	)
+
+	// Create a request to pass to our handler.
+	req, err := http.NewRequest("GET", "/ping", nil)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	// Create a ResponseRecorder (which satisfies http.ResponseWriter) to record the response.
+	rr := httptest.NewRecorder()
+	handler := http.Handler(Handler{appConfig, handleHealthCheck})
+
+	// handler satisfy http.Handler since ServeHTTP is implemented
+	handler.ServeHTTP(rr, req)
+	// Check the status code is what we expect.
+	if status := rr.Code; status != http.StatusOK {
+		t.Errorf("handler returned wrong status code: got %v want %v",
+			status, http.StatusOK)
+	}
+}
+
+func TestNewAlertHandler(t *testing.T) {
+	var (
+		httpClient = initClient()
+		notifier   = NewNotifier(*httpClient)
+		appConfig  = &App{notifier}
+	)
+
+	// Create a request to pass to our handler.
+	// Load mock payload
+	configFile, err := ioutil.ReadFile("examples/mock_payload.json")
+	if err != nil {
+		log.Fatal("Error opening config file", err.Error())
+		os.Exit(1)
+	}
+
+	req, err := http.NewRequest("POST", "/create?room_name=alertManagerTestRoom", bytes.NewBuffer(configFile))
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	// Create a ResponseRecorder (which satisfies http.ResponseWriter) to record the response.
+	rr := httptest.NewRecorder()
+	handler := http.Handler(Handler{appConfig, handleNewAlert})
+
+	// handler satisfy http.Handler since ServeHTTP is implemented
+	handler.ServeHTTP(rr, req)
+	// Check the status code is what we expect.
+	if status := rr.Code; status != http.StatusOK {
+		t.Errorf("handler returned wrong status code: got %v want %v",
+			status, http.StatusOK)
+	}
+}