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-rw-r--r--tests/testthat/test_tffm0.R10
1 files changed, 10 insertions, 0 deletions
diff --git a/tests/testthat/test_tffm0.R b/tests/testthat/test_tffm0.R
new file mode 100644
index 00000000..82e1ee94
--- /dev/null
+++ b/tests/testthat/test_tffm0.R
@@ -0,0 +1,10 @@
+test_that("The formation fraction transformation tffm0 is reversible", {
+ ff_example <- c(
+ 0.10983681, 0.09035905, 0.08399383
+ )
+ ff_example_trans <- tffm0(ff_example)
+ expect_equal(invtffm0(ff_example_trans), ff_example)
+
+ ff_ex_2_trans <- c(0.5, 0.9, 0.99)
+ expect_true(sum(invtffm0(ff_ex_2_trans)) < 1)
+})

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