1 files changed, 42 insertions, 0 deletions
diff --git a/tests/testthat/test_set_nd.R b/tests/testthat/test_set_nd.R
new file mode 100644
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+++ b/tests/testthat/test_set_nd.R
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+context("Processing of residue series")
+# FOCUS (2014) page 76 (parent) and page 132 (metabolite)
+
+parent_1 <- c(.12, .09, .05, .03, "nd", "nd", "nd", "nd", "nd", "nd")
+parent_2 <- c(.12, .09, .05, .03, "nd", "nd", .03, "nd", "nd", "nd")
+parent_3 <- c(.12, .09, .05, .03, "nd", "nd", .06, "nd", "nd", "nd")
+metabolite <- c("nd", "nd", "nd", 0.03, 0.06, 0.10, 0.11, 0.10, 0.09, 0.05, 0.03, "nd", "nd")
+
+test_that("Simple residue series processed as intended", {
+
+  expect_equal(set_nd(parent_1, 0.02),
+    c(.12, .09, .05, .03, .01, rep(NA, 5)))
+
+  expect_equal(set_nd(parent_2, 0.02, loq = 0.05),
+    c(.12, .09, .05, .03, .01, .01, .03, .01, NA, NA))
+
+  expect_equal(set_nd(metabolite, 0.02, loq = 0.05),
+    c(NA, NA, .01, .03, .06, .1, .11, .1, .09, .05, .03, .01, NA))
+
+})
+
+test_that("Simple residue series are processed as in the FOCUS guidance", {
+
+  # Parent 1
+  expect_error(set_nd_focus(parent_1, 0.02),
+    "You need to specify an loq")
+  expect_equal(set_nd_focus(parent_1, 0.02, 0.05),
+    c(.12, .09, .05, .03, .01, rep(NA, 5)))
+
+  # Parent 2
+  expect_equal(set_nd_focus(parent_2, 0.02, loq = 0.05),
+    c(.12, .09, .05, .03, .01, rep(NA, 5)))
+
+  # Parent 3
+  expect_equal(set_nd_focus(parent_3, 0.02, loq = 0.05),
+    c(.12, .09, .05, .03, .01, .01, .06, .01, NA, NA))
+
+  # Metabolite
+  expect_equal(set_nd_focus(metabolite, 0.02, loq = 0.05),
+    c(0, NA, .01, .03, .06, .1, .11, .1, .09, .05, .03, .01, NA))
+
+})