diff --git a/tests/testthat/test-BiocBook.R b/tests/testthat/test-BiocBook.R
index 0d7691e..7928d84 100644
--- a/tests/testthat/test-BiocBook.R
+++ b/tests/testthat/test-BiocBook.R
@@ -1,13 +1,13 @@
 test_that("init work", {
     
     tmpdir <- paste0(paste0(
-        sample(c(seq(0, 9), LETTERS), 8, replace = TRUE), collapse = ""
+        sample(LETTERS, 5, replace = TRUE),
+        sample(c(seq(0, 9)), 5, replace = TRUE), 
+        collapse = ""
     ))
     
     ## Utilities
-    expect_no_error(    
-        init(tmpdir, .local = TRUE)
-    )
+    expect_no_error(    init(tmpdir, .local = TRUE))
     expect_no_error(    bb <- BiocBook(tmpdir))
     expect_no_error(    show(bb))
     expect_no_error(    path(bb))
@@ -24,10 +24,10 @@ test_that("init work", {
     expect_error(       add_chapter(bb, title = 'Chapter 1', file = "chapter1", open = FALSE))
 
     ## edit_* functions
-    expect_no_error(    edit_yml(bb))
-    expect_no_error(    edit_css(bb))
-    expect_no_error(    edit_bib(bb))
-    expect_no_error(    edit_requirements_yml(bb))
+    expect_no_error(    edit_yml(bb, open = FALSE))
+    expect_no_error(    edit_css(bb, open = FALSE))
+    expect_no_error(    edit_bib(bb, open = FALSE))
+    expect_no_error(    edit_requirements_yml(bb, open = FALSE))
     expect_no_error(    edit_page(bb, file = '/inst/index.qmd', open = FALSE))
 
     unlink(tmpdir, recursive = TRUE, force = TRUE)