(testsuite) mount.exp: Create a mount-line completion which reads from a file instead of global fstab.

test/fixtures/mount/test-fstab

@@ -0,0 +1,20 @@
+proc /proc proc defaults 0 0
+none /debug debugfs defaults,noauto 0 0
+
+# Test octal escapes
+
+# Contains ' ' and '-'
+/mnt/nice\040test\055path /dev/null auto ro,noauto 0 0
+# Contains '$' and '-'
+/mnt/nice\044test\055path /dev/null auto ro,noauto 0 0
+# Contains ' ' and '\\'
+/mnt/nice\040test\134path /dev/null auto ro,noauto 0 0
+# Contains '\n' and '\ '
+/mnt/nice\012test\040path /dev/null auto ro,noauto 0 0
+
+# Test some labels
+LABEL=Ubuntu\040Karmic      /mnt/ubuntu auto no,noauto 0 0
+LABEL=Fedora        /mnt/fedora auto ro,noauto 0 0
+LABEL=Debian-it's\040awesome    /mnt/debian auto ro,noauto 0 0
+
+#/dev/null /mnt/nice'testxxxpath auto ro,noauto 0 0

test/lib/completions/mount.exp

@@ -1,11 +1,38 @@
+# mount completion from fstab can't be tested directly because it
+# (correctly) uses absolute paths. So we create a custom completion which
+# reads from a file in our text fixture instead.
+proc setup_dummy_mnt {} {
+    assert_bash_exec {unset COMPREPLY cur}
+    assert_bash_exec {unset -f _mnt}
+
+    global TESTDIR
+    assert_bash_exec { \
+        _mnt() { \
+            local cur=$(_get_cword); \
+            _linux_fstab < "$TESTDIR/fixtures/mount/test-fstab"; \
+        }; \
+        complete -F _mnt mnt \
+    }
+}
+
+
+proc teardown_dummy_mnt {} {
+    assert_bash_exec {unset COMPREPLY cur}
+    assert_bash_exec {unset -f _mnt}
+    assert_bash_exec {complete -r mnt}
+}
+
+
 proc setup {} {
     save_env
-};
+    setup_dummy_mnt
+}
 
 
 proc teardown {} {
+    teardown_dummy_mnt
     assert_env_unmodified
-};
+}
 
 
 setup
@@ -30,4 +57,23 @@ assert_bash_exec {PATH="$OLDPATH"; unset -v OLDPATH}
 sync_after_int
 
 
+assert_complete {/mnt/nice\ test-path} {mnt /mnt/nice\ test-p}
+sync_after_int
+
+assert_complete {/mnt/nice\$test-path} {mnt /mnt/nice\$test-p}
+sync_after_int
+
+assert_complete {/mnt/nice\ test\\path} {mnt /mnt/nice\ test\\p}
+sync_after_int
+
+assert_complete {/mnt/nice\ test-path} {mnt /mnt/nice\ }
+sync_after_int
+
+assert_complete {/mnt/nice\$test-path} {mnt /mnt/nice\$}
+sync_after_int
+
+assert_complete {'/mnt/nice\ test-path'} {mnt '/mnt/nice\ }
+sync_after_int
+
+
 teardown