Add simplest PEC soil calcs, use testthat

6 files changed, 42 insertions, 0 deletions

diff --git a/pkg/tests/testthat.R b/pkg/tests/testthat.R
new file mode 100644
index 0000000..d2df1cc
--- /dev/null
+++ b/pkg/tests/testthat.R
@@ -0,0 +1,4 @@
+library(testthat)
+library(pfm)
+
+test_check("pfm")
diff --git a/pkg/tests/testthat/H_sw_D4_pond.rds b/pkg/tests/testthat/H_sw_D4_pond.rds
new file mode 100644
index 0000000..9ad8194
--- /dev/null
+++ b/pkg/tests/testthat/H_sw_D4_pond.rds
diff --git a/pkg/tests/testthat/H_sw_R1_stream_events.rds b/pkg/tests/testthat/H_sw_R1_stream_events.rds
new file mode 100644
index 0000000..3e2828e
--- /dev/null
+++ b/pkg/tests/testthat/H_sw_R1_stream_events.rds
diff --git a/pkg/tests/testthat/H_sw_R1_stream_windows.rds b/pkg/tests/testthat/H_sw_R1_stream_windows.rds
new file mode 100644
index 0000000..29e13f2
--- /dev/null
+++ b/pkg/tests/testthat/H_sw_R1_stream_windows.rds
diff --git a/pkg/tests/testthat/test_PEC_soil.R b/pkg/tests/testthat/test_PEC_soil.R
new file mode 100644
index 0000000..27b2eb7
--- /dev/null
+++ b/pkg/tests/testthat/test_PEC_soil.R
@@ -0,0 +1,13 @@
+library(pfm)
+context("Simple PEC soil calculations")
+
+test_that("PEC_soil calculates correctly", {
+  # Application of 100 g/ha gives 0.133 mg/kg under default assumptions
+  expect_equal(PEC_soil(100), 0.1 * 4/3)
+
+  # or 0.1 mg/kg assuming 25% interception
+  expect_equal(PEC_soil(100, interception = 0.25), 0.1) 
+
+  # Mixing depth of 1 cm gives five-fold PEC
+  expect_equal(PEC_soil(100, interception = 0.25, mixing_depth = 1), 0.5)
+})
diff --git a/pkg/tests/testthat/test_TOXSWA_cwa.R b/pkg/tests/testthat/test_TOXSWA_cwa.R
new file mode 100644
index 0000000..d91b79a
--- /dev/null
+++ b/pkg/tests/testthat/test_TOXSWA_cwa.R
@@ -0,0 +1,25 @@
+library(pfm)
+context("Read and analyse TOXSWA cwa files")
+
+test_that("TOXSWA cwa file is correctly read", {
+  H_sw_D4_pond  <- read.TOXSWA_cwa("00001p_pa.cwa",
+                                   basedir = "SwashProjects/project_H_sw/TOXSWA",
+                                   zipfile = system.file("testdata/SwashProjects.zip",
+                                               package = "pfm"))
+  expect_equal_to_reference(H_sw_D4_pond, file = "H_sw_D4_pond.rds")
+})
+
+test_that("Getting events and moving window analysis works", {
+  H_sw_R1_stream  <- read.TOXSWA_cwa("00003s_pa.cwa",
+                                   basedir = "SwashProjects/project_H_sw/TOXSWA",
+                                   zipfile = system.file("testdata/SwashProjects.zip",
+                                               package = "pfm"))
+
+  # Event analysis with two different thresholds
+  H_sw_R1_stream$get_events(c(2, 10))
+  expect_equal_to_reference(H_sw_R1_stream$events, file = "H_sw_R1_stream_events.rds")
+
+  # Moving window analysis
+  H_sw_R1_stream$moving_windows(c(7, 21))
+  expect_equal_to_reference(H_sw_R1_stream$windows, file = "H_sw_R1_stream_windows.rds")
+})