diff --git a/_pkgdown.yml b/_pkgdown.yml
index 35e4ba5..a6ef5cd 100644
--- a/_pkgdown.yml
+++ b/_pkgdown.yml
@@ -1,5 +1,4 @@
 url: https://spatiotemporal-exposures-and-toxicology.github.io/GeoToxPackage/
 template:
   bootstrap: 5
-  bootswatch: sandstone
 
diff --git a/tests/testthat/test-simulate_age.R b/tests/testthat/test-simulate_age.R
index 29fc07d..e1af21b 100644
--- a/tests/testthat/test-simulate_age.R
+++ b/tests/testthat/test-simulate_age.R
@@ -1,4 +1,24 @@
-test_that("inputs", {
+test_that("simulate_age returns errors from bad inputs", {
+  # errors from bad input
   expect_error(simulate_age(data.frame()))
+  # errors from bad order
   expect_error(simulate_age(data.frame(AGEGRP = 0, TOT_POP = 0)))
+  #
+})
+
+
+test_that("age samples are good", {
+
+  x <- data.frame(AGEGRP = 0:18, TOT_POP = c(sum(1:18), 1:18))
+  ages_test <- simulate_age(x, 10)
+
+
+  # age sample is of size "n"
+  expect_vector(ages_test,size = 10)
+
+  # age samples are within allowed age range [0,90] t
+  expect_true(all(ages_test < 90 & ages_test >= 0))
+
+
+  #
 })