tsk-9: Schedule queued message endpoint (#22)

Closes #9

Reviewed-on: phoenix/textsender-api#22
Co-authored-by: phoenix <kundeng00@pm.me>
Co-committed-by: phoenix <kundeng00@pm.me>

internal/handler/scheduled_message_test.go

@@ -0,0 +1,48 @@
+package handler
+
+import (
+	"encoding/json"
+	"net/http"
+	"net/http/httptest"
+	"strings"
+	"testing"
+	"time"
+
+	"git.kundeng.us/phoenix/textsender-models/pkg/message/scheduling"
+	"github.com/google/uuid"
+	"github.com/stretchr/testify/assert"
+
+	"git.kundeng.us/phoenix/textsender-api/internal/handler/endpoint"
+)
+
+type CreateScheduledMessageRequest struct {
+	Scheduled time.Time `json:"scheduled"`
+	Status    string    `json:"status"`
+	UserId    uuid.UUID `json:"user_id"`
+}
+
+func TestCreateScheduledMessageWithMock(t *testing.T) {
+	now := time.Now()
+	mockStore := NewMockScheduledMessageStore()
+	handler := NewScheduledMessageHandler(mockStore)
+
+	testUserId := uuid.New()
+	scheduled := now.Add(5 * time.Minute)
+	testBody := CreateScheduledMessageRequest{Status: scheduling.Pending, UserId: testUserId, Scheduled: scheduled}
+	jsonValue, _ := json.Marshal(testBody)
+
+	req, _ := http.NewRequest("POST", endpoint.ScheduleMessageEndpoint, strings.NewReader(string(jsonValue)))
+	rr := httptest.NewRecorder()
+
+	handler.AddScheduledMessage(rr, req)
+
+	assert.Equal(t, http.StatusCreated, rr.Code)
+
+	var response AddScheduledMessageResponse
+	err := json.Unmarshal(rr.Body.Bytes(), &response)
+	assert.NoError(t, err, "Error Creating message %v", err)
+
+	assert.NotEmpty(t, response.Data, "No Message created")
+
+	assert.NotNil(t, response.Data[0].Id, "Id should not be nil")
+}