test: moar integration tests [ci skip]

tests/integration/autocomplete.bats

@@ -1,35 +1,30 @@
 #!/usr/bin/env bash
 
-setup() {
-  DIR="$( cd "$( dirname "$BATS_TEST_FILENAME" )" >/dev/null 2>&1 && pwd )"
-  source "$DIR/helpers.sh"
-  _setup_env
+setup(){
+  load "$PWD/tests/integration/helpers/common"
+  _common_setup
 }
 
 @test "bash autocompletion" {
   run $ABRA autocomplete bash
   assert_success
-  assert [ -f "$ABRA_DIR/autocompletion/bash" ]
+  assert_exists "$ABRA_DIR/autocompletion/bash"
 }
 
 @test "zsh autocompletion" {
   run $ABRA autocomplete zsh
   assert_success
-  assert [ -f "$ABRA_DIR/autocompletion/zsh" ]
+  assert_exists "$ABRA_DIR/autocompletion/zsh"
 }
 
 @test "fish autocompletion" {
   run $ABRA autocomplete fish
   assert_success
-  assert [ -f "$ABRA_DIR/autocompletion/fish" ]
+  assert_exists "$ABRA_DIR/autocompletion/fish"
 }
 
 @test "fizsh autocompletion" {
   run $ABRA autocomplete fizsh
   assert_success
-  assert [ -f "$ABRA_DIR/autocompletion/zsh" ]
-}
-
-teardown(){
-  _default_teardown
+  assert_exists "$ABRA_DIR/autocompletion/zsh"
 }