Disable stringsAsFactors during unit testing

capnrefsmmat · capnrefsmmat · commit 8ec2616ae86f · 2020-11-16T17:56:20.000-05:00
diff --git a/R-packages/covidcast/tests/testthat/setup-options.R b/R-packages/covidcast/tests/testthat/setup-options.R
@@ -0,0 +1,6 @@
+# Many tests use hand-made reference data frames. In R < 4.0, columns like
+# `geo_values` and `data_source`, containing strings, are interpreted as
+# factors. To prevent us from having to set stringsAsFactors = FALSE in every
+# test case, set the option while saving the default to restore in the teardown
+# (in teardown-options.R).
+.defaultStringsAsFactors <- options(stringsAsFactors = FALSE)
diff --git a/R-packages/covidcast/tests/testthat/teardown-options.R b/R-packages/covidcast/tests/testthat/teardown-options.R
@@ -0,0 +1,2 @@
+# see setup-options.R
+options(stringsAsFactors = .defaultStringsAsFactors)

Original file line number	Diff line number	Diff line change
`@@ -0,0 +1,2 @@`
	`1`	`+# see setup-options.R`
	`2`	`+options(stringsAsFactors = .defaultStringsAsFactors)`