add lightweight acceptance test harness

acceptance-test.bash

@@ -0,0 +1,25 @@
+#!/bin/bash
+
+set -euo pipefail
+
+echo 'begin acceptance test suite'
+find ./tests -mindepth 1 -type d | while read -r path; do
+  title="$(basename "$path")"
+  echo "$title"
+  mysql="mysql -h mysql -uroot -proot"
+  echo '  -> prepare'
+  $mysql -e "drop database if exists "'`'"$title"'`;'"create database "'`'"$title"'`;'
+  echo '  -> seed'
+  $mysql "$title" < "$path/setup.sql"
+  echo '  -> dumping'
+  if ! contents="$(go run . -hmysql -uroot -proot -c "$path/config.hcl")"; then
+    echo "❌ $title"
+    continue
+  fi
+  echo '  -> importing'
+  if ! $mysql <<< "$contents"; then
+    echo "❌ $title"
+    continue
+  fi
+  echo "✅ $title"
+done

tests/0001-escaping/config.hcl

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+database "001" {
+  table "test" {}
+}

tests/0001-escaping/setup.sql

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+create table `test` (
+  `col` json
+);
+INSERT INTO `test` (`col`) VALUES
+('\"--- !ruby/hash:ActiveSupport::HashWithIndifferentAccess\\nkey1: value1\\nkey2: value2\\n\"');