Added test to cover #50

Changes:
1. Fixed typo in `add -h`
2. Removed unused function from `usage`

src/commands/git_secret_add.sh

@@ -8,7 +8,7 @@ function add {
   while getopts "ih" opt; do
     case "$opt" in
       i) auto_add=1;;
-      h) _show_manaul_for "add";;
+      h) _show_manual_for "add";;
     esac
   done
 

src/commands/git_secret_usage.sh

@@ -1,19 +1,6 @@
 #!/usr/bin/env bash
 
 
-function _show_help_usage {
-    cat <<-EOF
-usage: git secret usage
-prints all the available commands.
-
-options:
-  -h        shows this help.
-
-EOF
-  exit 0
-}
-
-
 function usage {
   OPTIND=1
 

tests/test_add.bats

@@ -59,6 +59,22 @@ function teardown {
 }
 
 
+@test "run 'add' for file in subdirectory" {
+  local TEST_FILE='test_file'
+  local TEST_DIR='test_dir'
+
+  mkdir "$TEST_DIR"
+  touch "$TEST_DIR/$TEST_FILE"
+  echo "content" > "$TEST_DIR/$TEST_FILE"
+  echo "$TEST_DIR/$TEST_FILE" > ".gitignore"
+
+  run git secret add "$TEST_DIR/$TEST_FILE"
+  rm -rf "$TEST_DIR"
+
+  [ "$status" -eq 0 ]
+}
+
+
 @test "run 'add' twice for one file" {
   local filename="local_file"
   echo "content" > "$filename"