[R-package] [test] add reference to the original issue in R-package t…

…est (#4720)
microsoft · Oct 26, 2021 · adef94f · adef94f
1 parent 1cc84b3
commit adef94f
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/R-package/tests/testthat/test_lgb.Booster.R b/R-package/tests/testthat/test_lgb.Booster.R
@@ -467,6 +467,7 @@ test_that("Booster$eval() should work on a Dataset stored in a binary file", {
     )
 
     expect_true(abs(eval_in_mem[[1L]][["value"]] - 0.1744423) < TOLERANCE)
+    # refer to https://github.com/microsoft/LightGBM/issues/4680
     if (isTRUE(ON_WINDOWS)) {
       expect_equal(eval_in_mem, eval_from_file)
     } else {