diff --git a/tests/testthat/test-script-helpers.R b/tests/testthat/test-script-helpers.R
new file mode 100644
index 0000000..e56e559
--- /dev/null
+++ b/tests/testthat/test-script-helpers.R
@@ -0,0 +1,44 @@
+test_that("sourced getStationData handles request failure without attached httr", {
+  helper_env <- new.env(parent = globalenv())
+  sys.source(testthat::test_path("..", "..", "R", "getStationData.R"), envir = helper_env)
+
+  helper_env$request_api <- function(...) NULL
+
+  expect_null(
+    helper_env$getStationData(
+      start_date = "2024-01-01",
+      end_date = "2024-01-02",
+      station_id = "12345678",
+      headers = list(),
+      timesleep = 0
+    )
+  )
+})
+
+
+test_that("getAllFromCoord returns NULL when every station fetch fails", {
+  helper_env <- new.env(parent = globalenv())
+  sys.source(testthat::test_path("..", "..", "R", "getAllFromCoord.R"), envir = helper_env)
+
+  helper_env$getIdFromCoords <- function(...) {
+    data.frame(
+      Id_station = c("1001", "1002"),
+      Nom_usuel = c("Station A", "Station B"),
+      stringsAsFactors = FALSE
+    )
+  }
+
+  helper_env$getStationData <- function(...) NULL
+
+  expect_null(
+    helper_env$getAllFromCoord(
+      coord = c(44.85, 5.84),
+      start_date = "2024-01-01",
+      end_date = "2024-01-02",
+      allstations = data.frame(),
+      headers = list(),
+      btw_station_sleep = 0,
+      within_statio_sleep = 0
+    )
+  )
+})