test(division): add tests for exercise

sh/tests/division_test.sh

@@ -0,0 +1,23 @@
+#!/usr/bin/env bash
+
+# Unofficial Bash Strict Mode
+set -euo pipefail
+IFS='
+'
+
+script_dirS=$(cd -P "$(dirname "$BASH_SOURCE")" &>/dev/null && pwd)
+
+challenge() {
+    submitted=$(bash "$script_dirS"/student/division.sh $1 $2)
+    expected=$(bash "$script_dirS"/solutions/division.sh $1 $2)
+
+    diff <(echo "$submitted") <(echo "$expected")
+}
+
+challenge "10 2" "5"
+challenge "4 2" "2"
+challenge "0.5 0.5" "1"
+challenge "0.5" "Error: two numbers must be provided"
+challenge "foo bar" "Error: both arguments must be numeric"
+challenge "1 0" "Error: division by zero is not allowed"
+challenge "10000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 2" "5000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000"