feat: initial public version

server/io_test.go

@@ -0,0 +1,85 @@
+package server
+
+import (
+	"net/http"
+	"net/http/httptest"
+	"reflect"
+	"strings"
+	"testing"
+	"time"
+
+	"github.com/nalgeon/codapi/engine"
+)
+
+func Test_readJson(t *testing.T) {
+	t.Run("success", func(t *testing.T) {
+		req := httptest.NewRequest(http.MethodPost, "/example",
+			strings.NewReader(`{"sandbox": "python", "command": "run"}`))
+		req.Header.Set("Content-Type", "application/json")
+
+		got, err := readJson[engine.Request](req)
+		if err != nil {
+			t.Errorf("expected nil err, got %v", err)
+		}
+
+		want := engine.Request{
+			Sandbox: "python", Command: "run",
+		}
+		if !reflect.DeepEqual(got, want) {
+			t.Errorf("expected %v, got %v", want, got)
+		}
+	})
+	t.Run("unsupported media type", func(t *testing.T) {
+		req := httptest.NewRequest(http.MethodPost, "/example", nil)
+		req.Header.Set("Content-Type", "text/plain")
+
+		_, err := readJson[engine.Request](req)
+		if err == nil || err.Error() != "Unsupported Media Type" {
+			t.Errorf("unexpected error %v", err)
+		}
+	})
+	t.Run("error", func(t *testing.T) {
+		req := httptest.NewRequest(http.MethodPost, "/example", strings.NewReader("hello world"))
+		req.Header.Set("Content-Type", "application/json")
+
+		_, err := readJson[engine.Request](req)
+		if err == nil {
+			t.Error("expected unmarshaling error")
+		}
+	})
+}
+
+func Test_writeJson(t *testing.T) {
+	w := httptest.NewRecorder()
+	obj := engine.Request{
+		ID: "42", Sandbox: "python", Command: "run",
+	}
+
+	err := writeJson(w, obj)
+	if err != nil {
+		t.Errorf("expected nil err, got %v", err)
+	}
+
+	body := w.Body.String()
+	contentType := w.Header().Get("content-type")
+	if contentType != "application/json" {
+		t.Errorf("unexpected content-type header %s", contentType)
+	}
+
+	want := `{"id":"42","sandbox":"python","command":"run","files":null}`
+	if body != want {
+		t.Errorf("expected %s, got %s", body, want)
+	}
+}
+
+func Test_writeError(t *testing.T) {
+	w := httptest.NewRecorder()
+	obj := time.Date(2020, 10, 15, 0, 0, 0, 0, time.UTC)
+	writeError(w, http.StatusForbidden, obj)
+	if w.Code != http.StatusForbidden {
+		t.Errorf("expected status code %d, got %d", http.StatusForbidden, w.Code)
+	}
+	if w.Body.String() != `"2020-10-15T00:00:00Z"` {
+		t.Errorf("unexpected body %s", w.Body.String())
+	}
+}