Explicitly load yasnippet for testing

test/integration/oni-yasnippet.bats

@@ -1,7 +1,8 @@
 #!/usr/bin/env bats
 
-@test "Opening Emacs loads oni-yasnippet" {
+@test "Loading yasnippet loads oni-yasnippet" {
     run emacs -batch -l package -f package-initialize \
+        -l yasnippet \
         -eval "(prin1 (featurep 'oni-yasnippet))"
 
     echo "$output"
@@ -9,8 +10,9 @@
     [[ "$output" == *"t" ]]
 }
 
-@test "Opening Emacs diminishes yas-minor-mode" {
+@test "Loading yasnippet diminishes yas-minor-mode" {
     run emacs -batch -l package -f package-initialize -l subr-x \
+        -l yasnippet \
         -eval "(prin1 (string-empty-p (car (alist-get 'yas-minor-mode minor-mode-alist))))"
 
     echo "$output"
@@ -20,6 +22,7 @@
 
 @test "Reloading yasnippet diminishes yas-minor-mode" {
     run emacs -batch -l package -f package-initialize -l subr-x \
+        -l yasnippet \
         -eval "(load-library \"yasnippet\")" \
         -eval "(prin1 (string-empty-p (car (alist-get 'yas-minor-mode minor-mode-alist))))"