Bringing back stocks tests

tests/stocks.bats

@@ -0,0 +1,44 @@
+#!/bin/env bats
+
+@test "Testing stocks tool" {
+   echo stocks
+}
+
+@test "Check for latest version of bash-snippets on update" {
+  if [[ "$(uname)" == "Linux" ]];then
+  run stocks update
+  [ "$status" -eq 0 ]
+  [ "$output" = "Bash-Snippets is already the latest version" ]
+fi
+}
+
+@test "The -h option should print usage" {
+  run stocks -h
+  [ "$status" -eq 0 ]
+  [ "${lines[0]}" = "Stocks" ]
+}
+
+@test "No arguments prints usage instructions" {
+  run stocks
+  [ "$status" -eq 0 ]
+  [ "${lines[0]}" = "Stocks" ]
+}
+
+@test "Get stock info by passing in ticker" {
+  run stocks AAPL
+  [ "$status" -eq 0 ]
+  [ "${lines[0]}" = "AAPL stock info" ]
+}
+
+@test "Get stock info by passing in company" {
+  run stocks Tesla
+  [ "$status" -eq 0 ]
+  [ "${lines[0]}" = "TSLA stock info" ]
+}
+
+@test "Get the tools version with -v" {
+  run stocks -v
+  [ "$status" -eq 0 ]
+  result=$( echo $(stocks -v) | grep -Eo "Version")
+  [ "$result" = "Version" ]
+}