diff --git a/tests/testthat.R b/tests/testthat.R
new file mode 100644
index 0000000000000000000000000000000000000000..fcb82a13f71a2897348d13b16221f325151311d3
--- /dev/null
+++ b/tests/testthat.R
@@ -0,0 +1,3 @@
+library(testthat)
+library(dataRetrieval)
+test_check("dataRetrieval")
\ No newline at end of file
diff --git a/tests/testthat/tests_userFriendly_fxns.R b/tests/testthat/tests_userFriendly_fxns.R
new file mode 100644
index 0000000000000000000000000000000000000000..bd040048ccb861f962eced95439a9402fc41eb0b
--- /dev/null
+++ b/tests/testthat/tests_userFriendly_fxns.R
@@ -0,0 +1,19 @@
+context("Unit values")
+
+test_that("Unit value data returns correct types", {
+  testthat::skip_on_cran()
+  
+  siteNumber <- '05114000'
+  parameterCd <- '00060'
+  startDate <- "2014-10-10"
+  endDate <- "2014-10-10"
+
+  rawData <- readNWISuv(siteNumber,parameterCd,startDate,endDate)
+  
+  timeZoneChange <- readNWISuv(c('04024430','04024000'),parameterCd,
+                               "2013-11-03","2013-11-03")
+
+  expect_is(rawData$dateTime, 'POSIXct')
+  
+  
+})
\ No newline at end of file