added better tests for gcp healthcheck stuff

http_test.go

@@ -0,0 +1,71 @@
+package main
+
+import (
+	"net/http"
+	"net/http/httptest"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestGCPHealthcheckLiveness(t *testing.T) {
+	handler := func(w http.ResponseWriter, req *http.Request) {
+		w.Write([]byte("test"))
+	}
+
+	h := gcpHealthcheck(http.HandlerFunc(handler))
+	rw := httptest.NewRecorder()
+	r, _ := http.NewRequest("GET", "/liveness_check", nil)
+	r.RemoteAddr = "127.0.0.1"
+	r.Host = "test-server"
+	h.ServeHTTP(rw, r)
+
+	assert.Equal(t, 200, rw.Code)
+	assert.Equal(t, "OK", rw.Body.String())
+}
+
+func TestGCPHealthcheckReadiness(t *testing.T) {
+	handler := func(w http.ResponseWriter, req *http.Request) {
+		w.Write([]byte("test"))
+	}
+
+	h := gcpHealthcheck(http.HandlerFunc(handler))
+	rw := httptest.NewRecorder()
+	r, _ := http.NewRequest("GET", "/readiness_check", nil)
+	r.RemoteAddr = "127.0.0.1"
+	r.Host = "test-server"
+	h.ServeHTTP(rw, r)
+
+	assert.Equal(t, 200, rw.Code)
+	assert.Equal(t, "OK", rw.Body.String())
+}
+
+func TestGCPHealthcheckNotReadiness(t *testing.T) {
+	handler := func(w http.ResponseWriter, req *http.Request) {
+		w.Write([]byte("test"))
+	}
+
+	h := gcpHealthcheck(http.HandlerFunc(handler))
+	rw := httptest.NewRecorder()
+	r, _ := http.NewRequest("GET", "/NOT_readiness_check", nil)
+	r.RemoteAddr = "127.0.0.1"
+	r.Host = "test-server"
+	h.ServeHTTP(rw, r)
+
+	assert.NotEqual(t, "OK", rw.Body.String())
+}
+
+func TestGCPHealthcheckNotLiveness(t *testing.T) {
+	handler := func(w http.ResponseWriter, req *http.Request) {
+		w.Write([]byte("test"))
+	}
+
+	h := gcpHealthcheck(http.HandlerFunc(handler))
+	rw := httptest.NewRecorder()
+	r, _ := http.NewRequest("GET", "/NOT_liveness_check", nil)
+	r.RemoteAddr = "127.0.0.1"
+	r.Host = "test-server"
+	h.ServeHTTP(rw, r)
+
+	assert.NotEqual(t, "OK", rw.Body.String())
+}

options_test.go

@@ -268,3 +268,9 @@ func TestSkipOIDCDiscovery(t *testing.T) {
 
 	assert.Equal(t, nil, o.Validate())
 }
+
+func TestGCPHealthcheck(t *testing.T) {
+	o := testOptions()
+	o.GCPHealthChecks = true
+	assert.Equal(t, nil, o.Validate())
+}