diff --git a/tests/testthat/test-geocode.R b/tests/testthat/test-geocode.R
new file mode 100644
index 0000000..5fcb409
--- /dev/null
+++ b/tests/testthat/test-geocode.R
@@ -0,0 +1,39 @@
+data_path <- system.file("extdata/sample_1.csv", package = "geocodebr")
+input_df <- read.csv(data_path)
+
+fields <- setup_address_fields(
+  logradouro = "nm_logradouro",
+  numero = "Numero",
+  cep = "Cep",
+  bairro = "Bairro",
+  municipio = "nm_municipio",
+  estado = "nm_uf"
+)
+
+tester <- function(addresses_table = input_df,
+                   address_fields = fields,
+                   n_cores = 1,
+                   progress = TRUE,
+                   cache = TRUE) {
+  geocode(addresses_table, address_fields, n_cores, progress, cache)
+}
+
+test_that("errors with incorrect input", {
+  expect_error(tester(unclass(input_df)))
+
+  expect_error(tester(address_fields = 1))
+  expect_error(tester(address_fields = c(hehe = "nm_logradouro")))
+  expect_error(tester(address_fields = c(logradouro = "hehe")))
+
+  expect_error(tester(n_cores = "a"))
+  expect_error(tester(n_cores = 0))
+  expect_error(tester(n_cores = Inf))
+
+  expect_error(tester(progress = 1))
+  expect_error(tester(progress = NA))
+  expect_error(tester(progress = c(TRUE, TRUE)))
+
+  expect_error(tester(cache = 1))
+  expect_error(tester(cache = NA))
+  expect_error(tester(cache = c(TRUE, TRUE)))
+})