fix: correct Telegram update/keyboard models and harden env parsing

tgapi/methods_test.go

@@ -0,0 +1,115 @@
+package tgapi
+
+import (
+	"encoding/json"
+	"io"
+	"net/http"
+	"strings"
+	"testing"
+)
+
+func TestGetFileByLinkUsesConfiguredAPIURL(t *testing.T) {
+	var gotPath string
+
+	client := &http.Client{
+		Transport: roundTripFunc(func(req *http.Request) (*http.Response, error) {
+			gotPath = req.URL.Path
+			return &http.Response{
+				StatusCode: http.StatusOK,
+				Body:       io.NopCloser(strings.NewReader("payload")),
+			}, nil
+		}),
+	}
+
+	api := NewAPI(
+		NewAPIOpts("token").
+			SetAPIUrl("https://example.test").
+			SetHTTPClient(client),
+	)
+	defer func() {
+		if err := api.CloseApi(); err != nil {
+			t.Fatalf("CloseApi returned error: %v", err)
+		}
+	}()
+
+	data, err := api.GetFileByLink("files/report.txt")
+	if err != nil {
+		t.Fatalf("GetFileByLink returned error: %v", err)
+	}
+	if string(data) != "payload" {
+		t.Fatalf("unexpected payload: %q", string(data))
+	}
+	if gotPath != "/file/bottoken/files/report.txt" {
+		t.Fatalf("unexpected request path: %s", gotPath)
+	}
+}
+
+func TestGetFileByLinkReturnsHTTPStatusError(t *testing.T) {
+	client := &http.Client{
+		Transport: roundTripFunc(func(req *http.Request) (*http.Response, error) {
+			return &http.Response{
+				StatusCode: http.StatusNotFound,
+				Body:       io.NopCloser(strings.NewReader("missing\n")),
+			}, nil
+		}),
+	}
+
+	api := NewAPI(
+		NewAPIOpts("token").
+			SetAPIUrl("https://example.test").
+			SetHTTPClient(client),
+	)
+	defer func() {
+		if err := api.CloseApi(); err != nil {
+			t.Fatalf("CloseApi returned error: %v", err)
+		}
+	}()
+
+	_, err := api.GetFileByLink("files/report.txt")
+	if err == nil {
+		t.Fatal("expected error for non-2xx response")
+	}
+}
+
+func TestGetUpdatesOmitsAllowedUpdatesWhenEmpty(t *testing.T) {
+	var gotBody map[string]any
+
+	client := &http.Client{
+		Transport: roundTripFunc(func(req *http.Request) (*http.Response, error) {
+			body, err := io.ReadAll(req.Body)
+			if err != nil {
+				t.Fatalf("failed to read request body: %v", err)
+			}
+			if err := json.Unmarshal(body, &gotBody); err != nil {
+				t.Fatalf("failed to decode request body: %v", err)
+			}
+			return &http.Response{
+				StatusCode: http.StatusOK,
+				Header:     http.Header{"Content-Type": []string{"application/json"}},
+				Body:       io.NopCloser(strings.NewReader(`{"ok":true,"result":[]}`)),
+			}, nil
+		}),
+	}
+
+	api := NewAPI(
+		NewAPIOpts("token").
+			SetAPIUrl("https://example.test").
+			SetHTTPClient(client),
+	)
+	defer func() {
+		if err := api.CloseApi(); err != nil {
+			t.Fatalf("CloseApi returned error: %v", err)
+		}
+	}()
+
+	updates, err := api.GetUpdates(UpdateParams{})
+	if err != nil {
+		t.Fatalf("GetUpdates returned error: %v", err)
+	}
+	if len(updates) != 0 {
+		t.Fatalf("expected no updates, got %d", len(updates))
+	}
+	if _, exists := gotBody["allowed_updates"]; exists {
+		t.Fatalf("expected allowed_updates to be omitted, got %v", gotBody["allowed_updates"])
+	}
+}