From dd803b191062925eda830543236836e7822fd884 Mon Sep 17 00:00:00 2001 From: Johannes Ranke Date: Thu, 11 Jun 2015 16:57:43 +0200 Subject: Add UK tier 1 drainage PEC calculations --- pkg/tests/testthat/test_UK_drainage.R | 33 +++++++++++++++++++++++++++++++++ 1 file changed, 33 insertions(+) create mode 100644 pkg/tests/testthat/test_UK_drainage.R (limited to 'pkg/tests/testthat') diff --git a/pkg/tests/testthat/test_UK_drainage.R b/pkg/tests/testthat/test_UK_drainage.R new file mode 100644 index 0000000..3a57db8 --- /dev/null +++ b/pkg/tests/testthat/test_UK_drainage.R @@ -0,0 +1,33 @@ +library(pfm) +context("UK drainage PEC calculations") + +test_that("The mobility classification and the drained percentage are correct", { + # Expected results are from the CRD drainage calculator, retrieved 2015-06-11 + + expect_equivalent(SSLRC_mobility_classification(1), list("Very mobile", 1.9)) + expect_equivalent(SSLRC_mobility_classification(15), list("Mobile", 1.9)) + expect_equivalent(SSLRC_mobility_classification(30), list("Mobile", 1.9)) + expect_equivalent(SSLRC_mobility_classification(74.9), list("Mobile", 1.9)) + expect_equivalent(SSLRC_mobility_classification(75), list("Moderately mobile", 0.7)) + expect_equivalent(SSLRC_mobility_classification(100), list("Moderately mobile", 0.7)) + expect_equivalent(SSLRC_mobility_classification(800), list("Slightly mobile", 0.5)) + expect_equivalent(SSLRC_mobility_classification(2000), list("Slightly mobile", 0.02)) + expect_equivalent(SSLRC_mobility_classification(5000), list("Non mobile", 0.01)) +}) + +test_that("UK drainflow PECs are correct", { + # Expected results are from the CRD drainage calculator, retrieved 2015-06-11, except + # for the third example from the data requirements handbook + + # This is the first example calculation from the data requirements handbook, where they give + # 8.07 µg/L as the result (obviously a rounding error). + expect_equal(round(PEC_sw_drainage_UK_ini(150, interception = 0, Koc = 100), 4), 8.0769) + + # This is the second example calculation from the data requirements handbook + expect_equal(round(PEC_sw_drainage_UK_ini(90, interception = 0, Koc = 10), 4), 13.1538) + + # This is the third example calculation from the data requirements handbook, + expect_equal(round(PEC_sw_drainage_UK_ini(60, interception = 0.5, Koc = 550, + latest_application = "01 July", + soil_DT50 = 200), 2), 0.84) +}) -- cgit v1.2.1