bash-completion: Support spaces in note names

This also introduces a basic test-suite for the bash completion

notes.bash_completion

@@ -3,18 +3,25 @@
 _notes_complete_notes() {
     local configured_dir=${NOTES_DIRECTORY%/} # Remove trailing slashes
     local notes_dir="${configured_dir:-$HOME/notes}"
-    local items=($(compgen -f "$notes_dir/$1"))
+    local OLD_IFS="$IFS"
+    IFS=$'\n'
+    local items=($(compgen -f "$notes_dir/$1" | sort ))
+    IFS="$OLD_IFS"
     for item in "${items[@]}"; do
         [[ -d $item ]] && item="$item/"
         local filename=${item#$notes_dir/}
         COMPREPLY+=("${filename%.md}")
     done
 }
 
+_notes_complete_commands() {
+    local valid_commands="new find grep open"
+    COMPREPLY=($(compgen -W "${valid_commands}" -- "${1}"))
+}
+
 _notes()
 {
     local cur
-    readonly commands="new find grep open"
 
     COMPREPLY=()   # Array variable storing the possible completions.
     cur=${COMP_WORDS[COMP_CWORD]}
@@ -35,7 +42,7 @@ _notes()
         esac
     else
         compopt +o nospace
-        COMPREPLY=($(compgen -W "${commands}" -- "${cur}"))
+        _notes_complete_commands "$cur"
     fi
     return 0
 }

test/test-bash-completion.bats

@@ -0,0 +1,46 @@
+#!./libs/bats/bin/bats
+
+load 'libs/bats-support/load'
+load 'libs/bats-assert/load'
+load 'helpers'
+
+setup() {
+  setupNotesEnv
+  source notes.bash_completion
+  COMP_WORDS=()
+}
+
+teardown() {
+  teardownNotesEnv
+}
+
+@test "Should list all commands" {
+  touch $NOTES_DIRECTORY/note1.md
+  _notes_complete_commands ""
+  assert_equal "${COMPREPLY[0]}" 'new'
+  assert_equal "${COMPREPLY[1]}" 'find'
+  assert_equal "${COMPREPLY[2]}" 'grep'
+  assert_equal "${COMPREPLY[3]}" 'open'
+}
+
+@test "Should show matching note when found" {
+  touch $NOTES_DIRECTORY/note1.md
+  _notes_complete_notes "no"
+  assert_equal "${COMPREPLY[@]}" "note1"
+}
+
+@test "Should show multiple matching notes" {
+  touch $NOTES_DIRECTORY/note1.md
+  touch $NOTES_DIRECTORY/note2.md
+  _notes_complete_notes "no"
+  assert_equal "${COMPREPLY[0]}" 'note1'
+  assert_equal "${COMPREPLY[1]}" 'note2'
+  assert_equal 2 "${#COMPREPLY[@]}"
+}
+
+@test "Should show one completion for note with space" {
+  touch "$NOTES_DIRECTORY/my note.md"
+  _notes_complete_notes ""
+  assert_equal "${COMPREPLY[0]}" 'my note'
+  assert_equal 1 "${#COMPREPLY[@]}"
+}