diff --git a/tests/testthat/test-get_dataset.R b/tests/testthat/test-get_dataset.R
index 4bf1139..d9af688 100644
--- a/tests/testthat/test-get_dataset.R
+++ b/tests/testthat/test-get_dataset.R
@@ -50,3 +50,22 @@ test_that("get_dataset filters error properly", {
     regexp = "API error"
   )
 })
+
+test_that("get_dataset works with multiple filters", {
+  n_resources <- 3
+  columns <- c("Date", "PracticeCode", "HSCP", "AllAges")
+
+  expect_message(
+    data <- get_dataset("gp-practice-populations",
+                      max_resources = n_resources,
+                      row_filters = list(PracticeCode = c("10002", "10017")),
+                      col_select = columns
+  )
+  )
+
+  expect_s3_class(data, "tbl_df")
+  expect_equal(nrow(data), n_resources * 6)
+  expect_named(data, columns)
+  expect_true(all(data[["PracticeCode"]] %in% c("10002", "10017")))
+})
+
diff --git a/tests/testthat/test-get_resource.R b/tests/testthat/test-get_resource.R
index cb3f5bd..863ae69 100644
--- a/tests/testthat/test-get_resource.R
+++ b/tests/testthat/test-get_resource.R
@@ -62,3 +62,41 @@ test_that("returns data for multiple filters", {
   expect_length(unique(data_full$GPPractice), 2)
   expect_length(unique(data_full$PrescribedType), 1)
 })
+
+test_that("returns data for multiple filters in mixed format", {
+  expect_message(
+    delays <- get_resource(
+      res_id = "fd354e4b-6211-48ba-8e4f-8356a5ed4215",
+      col_select = c("MonthOfDelay", "ReasonForDelay", "NumberOfDelayedBedDays"),
+      row_filters = list("HBT" = "S08000031", MonthOfDelay = c(201607:201707))
+    )
+  )
+
+  expect_s3_class(delays, "tbl_df")
+  expect_equal(nrow(delays), 195)
+  expect_named(delays, c("MonthOfDelay", "ReasonForDelay", "NumberOfDelayedBedDays"))
+  expect_length(unique(delays$MonthOfDelay), 13)
+})
+
+test_that("errors on invalid filters", {
+  # non-existent column in row_filters
+  expect_error(
+    delays <- get_resource(
+      res_id = "fd354e4b-6211-48ba-8e4f-8356a5ed4215",
+      col_select = c("MonthOfDelay", "ReasonForDelay", "NumberOfDelayedBedDays"),
+      row_filters = c("HBT" = "S08000031", "Month" = 201607)
+      ),
+    regexp = "row_filters: invalid value"
+  )
+
+  # non-existent column in col_select
+  expect_error(
+    delays <- get_resource(
+      res_id = "fd354e4b-6211-48ba-8e4f-8356a5ed4215",
+      col_select = c("Month", "ReasonForDelay", "NumberOfDelayedBedDays"),
+      row_filters = c("HBT" = "S08000031", "MonthOfDelay" = 201607)
+    ),
+    regexp = "col_select: invalid value"
+  )
+
+})