+test_begin_subtest "notmuch-show: show message headers"
+test_emacs \
+ '(let ((notmuch-message-headers '\''("Subject" "To" "Cc" "Date"))
+ (notmuch-message-headers-visible t))
+ (notmuch-show "id:f35dbb950911171438k5df6eb56k77b6c0944e2e79ae@mail.gmail.com")
+ (test-visible-output))'
+test_expect_equal_file OUTPUT $EXPECTED/notmuch-show-message-with-headers-visible
+
+test_begin_subtest "notmuch-show: hide message headers"
+test_emacs \
+ '(let ((notmuch-message-headers '\''("Subject" "To" "Cc" "Date"))
+ (notmuch-message-headers-visible nil))
+ (notmuch-show "id:f35dbb950911171438k5df6eb56k77b6c0944e2e79ae@mail.gmail.com")
+ (test-visible-output))'
+test_expect_equal_file OUTPUT $EXPECTED/notmuch-show-message-with-headers-hidden
+
+test_begin_subtest "notmuch-show: hide message headers (w/ notmuch-show-toggle-visibility-headers)"
+test_emacs \
+ '(let ((notmuch-message-headers '\''("Subject" "To" "Cc" "Date"))
+ (notmuch-message-headers-visible t))
+ (notmuch-show "id:f35dbb950911171438k5df6eb56k77b6c0944e2e79ae@mail.gmail.com")
+ (notmuch-show-toggle-visibility-headers)
+ (test-visible-output))'
+test_expect_equal_file OUTPUT $EXPECTED/notmuch-show-message-with-headers-hidden
+
+test_begin_subtest "notmuch-show: collapse all messages in thread"
+test_emacs '(notmuch-show "id:f35dbb950911171435ieecd458o853c873e35f4be95@mail.gmail.com")
+ (let ((current-prefix-arg t))
+ (notmuch-show-open-or-close-all)
+ (test-visible-output))'
+test_expect_equal_file OUTPUT $EXPECTED/notmuch-show-thread-with-all-messages-collapsed
+
+test_begin_subtest "notmuch-show: uncollapse all messages in thread"
+test_emacs '(notmuch-show "id:f35dbb950911171435ieecd458o853c873e35f4be95@mail.gmail.com")
+ (notmuch-show-open-or-close-all)
+ (test-visible-output)'
+test_expect_equal_file OUTPUT $EXPECTED/notmuch-show-thread-with-all-messages-uncollapsed
+