Add tests for device IDs in file size column

xtests/details-view-filesizes.toml

@@ -61,3 +61,14 @@ stdout = { file = "outputs/files_long_colourscale_bytes.ansitxt" }
 stderr = { empty = true }
 status = 0
 tags = [ 'long', 'colour-scale', 'bytes' ]
+
+[[cmd]]
+name = "‘exa -l’ produces a details table with major and minor device IDs"
+shell = "cd /dev; exa -l mem null port zero full random urandom --sort=none"
+stdout = { file = "outputs/dev_long.ansitxt" }
+stderr = { empty = true }
+status = 0
+tags = [ 'long', 'dev' ]
+
+# these particular device IDs should be fixed:
+# https://raw.githubusercontent.com/torvalds/linux/master/Documentation/admin-guide/devices.txt

xtests/outputs/dev_long.ansitxt

@@ -0,0 +1,7 @@
+crw-r----- 1,1 root  9 Apr 19:35 mem
+crw-rw-rw- 1,3 root  9 Apr 19:35 null
+crw-r----- 1,4 root  9 Apr 19:35 port
+crw-rw-rw- 1,5 root  9 Apr 19:35 zero
+crw-rw-rw- 1,7 root  9 Apr 19:35 full
+crw-rw-rw- 1,8 root  9 Apr 19:35 random
+crw-rw-rw- 1,9 root  9 Apr 19:35 urandom