test: share the first-page and clock helpers

writeFirstPage answers paged listings in app and services tests,
testNow replaces the copied clock, withoutANSI the second color
stripper, and the single-entry table test becomes a plain test.

Signed-off-by: bircni <bircni@icloud.com>

internal/services/helpers_test.go

@@ -75,3 +75,11 @@ func TestNameOrIDPrefersIDsThenExactThenFoldedNames(t *testing.T) {
 		require.Equal(t, tc.want, got.id, tc.raw)
 	}
 }
+
+// writeFirstPage answers the first page of a listing with page and every later page with [].
+func writeFirstPage(w http.ResponseWriter, r *http.Request, page string) {
+	if r.URL.Query().Get("page") != "1" {
+		page = `[]`
+	}
+	_, _ = w.Write([]byte(page))
+}