diff --git a/tests/fixtures/check_last_audit.yml b/tests/fixtures/check_last_audit.yml
new file mode 100644
index 0000000..c37d5ef
--- /dev/null
+++ b/tests/fixtures/check_last_audit.yml
@@ -0,0 +1,35 @@
+http_interactions:
+- request:
+    method: get
+    uri: https://bugs.r-project.org/bugzilla/rest/last_audit_time
+    body:
+      encoding: ''
+      string: ''
+    headers:
+      Accept: application/json, text/xml, application/xml, */*
+      Authorization: My bearer token is safe
+      X-BUGZILLA-API-KEY: Removing this header too just in case
+  response:
+    status:
+      status_code: 200
+      category: Success
+      reason: OK
+      message: 'Success: (200) OK'
+    headers:
+      date: Fri, 18 Jun 2021 20:57:31 GMT
+      server: gazelle
+      etag: nuyzry+9UExbGXwyRTkrfQ
+      content-length: '42'
+      content-type: application/json; charset=UTF-8
+      access-control-allow-headers: accept, content-type, origin, user-agent, x-requested-with,
+        x-bugzilla-api-key, x-bugzilla-login, x-bugzilla-token, x-bugzilla-password
+      access-control-allow-origin: '*'
+      x-content-type-options: nosniff
+      x-frame-options: SAMEORIGIN
+      x-xss-protection: 1; mode=block
+    body:
+      encoding: UTF-8
+      file: no
+      string: '{"last_audit_time":"2021-06-18T20:47:32Z"}'
+  recorded_at: 2021-06-18 20:57:31 GMT
+  recorded_with: vcr/0.6.0, webmockr/0.8.0
diff --git a/tests/testthat/_snaps/api.md b/tests/testthat/_snaps/api.md
new file mode 100644
index 0000000..915943b
--- /dev/null
+++ b/tests/testthat/_snaps/api.md
@@ -0,0 +1,78 @@
+# create_bugzilla_key() works [plain]
+
+    Code
+      create_bugzilla_key()
+    Message <cliMessage>
+      i Reading cached keys on '/home/data/.cache/R/bugRzilla/.Renviron'.
+      v Found key `R_BUGZILLA`.
+      v Using key `R_BUGZILLA`.
+      x Not authenticated on this site.
+      v Authenticated on this site!
+
+# create_bugzilla_key() works [unicode]
+
+    Code
+      create_bugzilla_key()
+    Message <cliMessage>
+      ℹ Reading cached keys on '/home/data/.cache/R/bugRzilla/.Renviron'.
+      ✔ Found key `R_BUGZILLA`.
+      ✔ Using key `R_BUGZILLA`.
+      ✖ Not authenticated on this site.
+      ✔ Authenticated on this site!
+
+# check_key() works [plain]
+
+    Code
+      check_key(key_name = missing_key(), verbose = FALSE)
+    Output
+      [1] TRUE
+
+# check_key() works [unicode]
+
+    Code
+      check_key(key_name = missing_key(), verbose = FALSE)
+    Output
+      [1] TRUE
+
+# use_key() works [plain]
+
+    Code
+      use_key(missing_key())
+    Message <cliMessage>
+      v Using key `R_BUGZILLA`.
+
+# use_key() works [unicode]
+
+    Code
+      use_key(missing_key())
+    Message <cliMessage>
+      ✔ Using key `R_BUGZILLA`.
+
+# valid_key() works [plain]
+
+    Code
+      valid_key(key = "hgfcchg12")
+    Output
+      [1] TRUE
+
+# valid_key() works [ansi]
+
+    Code
+      valid_key(key = "hgfcchg12")
+    Output
+      [1] TRUE
+
+# valid_key() works [unicode]
+
+    Code
+      valid_key(key = "hgfcchg12")
+    Output
+      [1] TRUE
+
+# valid_key() works [fancy]
+
+    Code
+      valid_key(key = "hgfcchg12")
+    Output
+      [1] TRUE
+
diff --git a/tests/testthat/setup-bugRzilla.R b/tests/testthat/setup-bugRzilla.R
index e56a6b7..76b34cc 100644
--- a/tests/testthat/setup-bugRzilla.R
+++ b/tests/testthat/setup-bugRzilla.R
@@ -15,7 +15,7 @@ use_key()
 invisible(vcr::vcr_configure(
   dir = vcr_dir,
   filter_request_headers = list(
-      "Authorization" = "My bearer token is safe",
-      "X-BUGZILLA-API-KEY" = "Removing this header too just in case")
+    "Authorization" = "My bearer token is safe",
+    "X-BUGZILLA-API-KEY" = "Removing this header too just in case")
 ))
 vcr::check_cassette_names()
diff --git a/tests/testthat/test-api.R b/tests/testthat/test-api.R
new file mode 100644
index 0000000..e2a6bdf
--- /dev/null
+++ b/tests/testthat/test-api.R
@@ -0,0 +1,48 @@
+# This is to check the create_bugzilla_key function
+cli::test_that_cli(configs = c("plain", "unicode"), "create_bugzilla_key() works", {
+    skip_on_ci()
+    expect_snapshot({
+        create_bugzilla_key()
+    })
+})
+
+
+# This is to check the set_key function
+test_that("set_key works", {
+    skip_on_ci()
+    sk <- set_key()
+    expect_equal(write_renviron(key = sk, value = sk, file = app_file()), NULL)
+})
+
+
+# This is to check the check_key function
+cli::test_that_cli(configs = c("plain", "unicode"), "check_key() works", {
+    skip_on_ci()
+    expect_snapshot({
+        check_key(key_name = missing_key(),  verbose = FALSE)
+    })
+})
+
+# This is to check the use_key function
+cli::test_that_cli(configs = c("plain", "unicode"), "use_key() works", {
+    expect_snapshot({
+        use_key(missing_key())
+    })
+})
+
+
+# This is to check the check_last_audit function
+test_that("check_last_audit works", {
+    vcr::use_cassette("check_last_audit", {
+        cla <- check_last_audit()
+    })
+    expect_s3_class(cla, "POSIXlt")
+})
+
+
+# This is to check the valid_key function
+cli::test_that_cli("valid_key() works", {
+    expect_snapshot({
+        valid_key(key = "hgfcchg12")
+    })
+})
diff --git a/tests/testthat/test-bug_search.R b/tests/testthat/test-bug_search.R
new file mode 100644
index 0000000..2b92eb7
--- /dev/null
+++ b/tests/testthat/test-bug_search.R
@@ -0,0 +1,21 @@
+valid_parameters <- c("alias", "assigned_to", "component", "creation_time",
+                      "creator", "id", "last_change_time", "limit",
+                      "longdescs.count", "offset", "op_sys", "platform",
+                      "priority", "product", "resolution", "severity",
+                      "status", "summary", "tags", "target_milestone",
+                      "qa_contact", "url", "version", "whiteboard",
+                      "quicksearch")
+
+# test_that("bug_search works", {
+#     vcr::use_cassette("bug_search", {
+#         bs <- bug_search(id=1)
+#         url <- "https://bugs.r-project.org/bugzilla/rest/bug?id=1"
+#     })
+#     expect_equal(paste0(missing_host(), "rest/bug?", params(id=1)), url)
+# })
+
+test_that("params works", {
+    par <- params()
+    expect_true(all(names(par) %in% valid_parameters))
+    expect_error(params(ids=1))
+})
diff --git a/tests/testthat/test-post_help.R b/tests/testthat/test-post_help.R
new file mode 100644
index 0000000..92c3e0c
--- /dev/null
+++ b/tests/testthat/test-post_help.R
@@ -0,0 +1,18 @@
+# yes <- c("Yes", "Definitely", "Positive", "For sure", "Yup", "Yeah",
+#          "Absolutely")
+# no <- c("Not sure", "Not now", "Negative", "No", "Nope", "Absolutely not")
+#
+# cli::test_that_cli(configs = c("plain"), "read_documentation() works",{
+#     expect_snapshot({
+#         expect_equal(read_documentation(), "Cancel")
+#         # expect_equal(read_documentation(), no)
+#         # expect_equal(read_documentation(), yes)
+#     })
+# })
+
+# test_that("ask_confirmation works", {
+#     vcr::use_cassette("ask_confirmation", {
+#         ac <- ask_confirmation(title = NULL, positive = yes, negative = no)
+#     })
+#     expect_equal(sample(positive, 1), sample(negative, 2))
+# })