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package api
import (
"context"
"encoding/json"
"net/http"
"net/http/httptest"
"strings"
"testing"
"time"
"google.golang.org/api/option"
gtasks "google.golang.org/api/tasks/v1"
)
func newTestGoogleTasksClient(t *testing.T, server *httptest.Server, tasklistID string, tz *time.Location) *GoogleTasksClient {
t.Helper()
if tz == nil {
tz = time.UTC
}
httpClient := &http.Client{Transport: &redirectingTransport{server: server}}
srv, err := gtasks.NewService(context.Background(),
option.WithHTTPClient(httpClient),
option.WithoutAuthentication(),
)
if err != nil {
t.Fatalf("failed to create test tasks service: %v", err)
}
return &GoogleTasksClient{
srv: srv,
tasklistID: tasklistID,
displayTZ: tz,
}
}
func tasksAPIResponse(items []map[string]interface{}) string {
b, _ := json.Marshal(map[string]interface{}{
"kind": "tasks#tasks",
"items": items,
})
return string(b)
}
// newTasksServer returns an httptest.Server that serves a fixed tasks JSON body.
func newTasksServer(body string) *httptest.Server {
return httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
if !strings.Contains(r.URL.Path, "/lists/") {
http.NotFound(w, r)
return
}
w.Header().Set("Content-Type", "application/json")
_, _ = w.Write([]byte(body))
}))
}
// --- GetTasksByDateRange boundary tests ---
func TestGetTasksByDateRange_StartBoundaryIncluded(t *testing.T) {
// A task due exactly on the start date should be included (inclusive lower bound).
start := time.Date(2026, 3, 17, 0, 0, 0, 0, time.UTC)
end := time.Date(2026, 3, 20, 0, 0, 0, 0, time.UTC)
body := tasksAPIResponse([]map[string]interface{}{
{
"id": "task-start",
"title": "Task on start date",
"status": "needsAction",
"due": "2026-03-17T00:00:00Z",
"updated": "2026-03-17T00:00:00Z",
},
})
server := newTasksServer(body)
defer server.Close()
client := newTestGoogleTasksClient(t, server, "@default", time.UTC)
tasks, err := client.GetTasksByDateRange(context.Background(), start, end)
if err != nil {
t.Fatalf("unexpected error: %v", err)
}
if len(tasks) != 1 {
t.Fatalf("expected 1 task (start boundary included), got %d", len(tasks))
}
if tasks[0].ID != "task-start" {
t.Errorf("expected task-start, got %s", tasks[0].ID)
}
}
func TestGetTasksByDateRange_EndBoundaryExcluded(t *testing.T) {
// A task due exactly on the end date should be excluded (exclusive upper bound).
start := time.Date(2026, 3, 17, 0, 0, 0, 0, time.UTC)
end := time.Date(2026, 3, 20, 0, 0, 0, 0, time.UTC)
body := tasksAPIResponse([]map[string]interface{}{
{
"id": "task-end",
"title": "Task on end date",
"status": "needsAction",
"due": "2026-03-20T00:00:00Z",
"updated": "2026-03-17T00:00:00Z",
},
})
server := newTasksServer(body)
defer server.Close()
client := newTestGoogleTasksClient(t, server, "@default", time.UTC)
tasks, err := client.GetTasksByDateRange(context.Background(), start, end)
if err != nil {
t.Fatalf("unexpected error: %v", err)
}
if len(tasks) != 0 {
t.Fatalf("expected 0 tasks (end boundary excluded), got %d", len(tasks))
}
}
func TestGetTasksByDateRange_NoDueDateAlwaysIncluded(t *testing.T) {
// Tasks without a due date are always included regardless of the range.
start := time.Date(2026, 3, 17, 0, 0, 0, 0, time.UTC)
end := time.Date(2026, 3, 20, 0, 0, 0, 0, time.UTC)
body := tasksAPIResponse([]map[string]interface{}{
{
"id": "task-no-due",
"title": "No due date",
"status": "needsAction",
"updated": "2026-03-17T00:00:00Z",
// no "due" field
},
})
server := newTasksServer(body)
defer server.Close()
client := newTestGoogleTasksClient(t, server, "@default", time.UTC)
tasks, err := client.GetTasksByDateRange(context.Background(), start, end)
if err != nil {
t.Fatalf("unexpected error: %v", err)
}
if len(tasks) != 1 {
t.Fatalf("expected 1 task (no due date always included), got %d", len(tasks))
}
if tasks[0].DueDate != nil {
t.Errorf("expected nil DueDate, got %v", tasks[0].DueDate)
}
}
func TestGetTasksByDateRange_OutOfRangeExcluded(t *testing.T) {
// A task before start or after end should be excluded.
start := time.Date(2026, 3, 17, 0, 0, 0, 0, time.UTC)
end := time.Date(2026, 3, 20, 0, 0, 0, 0, time.UTC)
body := tasksAPIResponse([]map[string]interface{}{
{
"id": "task-before",
"title": "Task before range",
"status": "needsAction",
"due": "2026-03-16T00:00:00Z",
"updated": "2026-03-17T00:00:00Z",
},
{
"id": "task-after",
"title": "Task after range",
"status": "needsAction",
"due": "2026-03-21T00:00:00Z",
"updated": "2026-03-17T00:00:00Z",
},
{
"id": "task-in-range",
"title": "Task in range",
"status": "needsAction",
"due": "2026-03-18T00:00:00Z",
"updated": "2026-03-17T00:00:00Z",
},
})
server := newTasksServer(body)
defer server.Close()
client := newTestGoogleTasksClient(t, server, "@default", time.UTC)
tasks, err := client.GetTasksByDateRange(context.Background(), start, end)
if err != nil {
t.Fatalf("unexpected error: %v", err)
}
if len(tasks) != 1 {
t.Fatalf("expected 1 task (only in-range), got %d", len(tasks))
}
if tasks[0].ID != "task-in-range" {
t.Errorf("expected task-in-range, got %s", tasks[0].ID)
}
}
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