1 files changed, 129 insertions, 0 deletions
diff --git a/activerecord/test/cases/arel/support/fake_record.rb b/activerecord/test/cases/arel/support/fake_record.rb
new file mode 100644
index 0000000000..75ac1e072f
--- /dev/null
+++ b/activerecord/test/cases/arel/support/fake_record.rb
@@ -0,0 +1,129 @@
+# frozen_string_literal: true
+
+require 'date'
+module FakeRecord
+  class Column < Struct.new(:name, :type)
+  end
+
+  class Connection
+    attr_reader :tables
+    attr_accessor :visitor
+
+    def initialize(visitor = nil)
+      @tables = %w{ users photos developers products}
+      @columns = {
+        'users' => [
+          Column.new('id', :integer),
+          Column.new('name', :string),
+          Column.new('bool', :boolean),
+          Column.new('created_at', :date)
+        ],
+        'products' => [
+          Column.new('id', :integer),
+          Column.new('price', :decimal)
+        ]
+      }
+      @columns_hash = {
+        'users' => Hash[@columns['users'].map { |x| [x.name, x] }],
+        'products' => Hash[@columns['products'].map { |x| [x.name, x] }]
+      }
+      @primary_keys = {
+        'users' => 'id',
+        'products' => 'id'
+      }
+      @visitor = visitor
+    end
+
+    def columns_hash table_name
+      @columns_hash[table_name]
+    end
+
+    def primary_key name
+      @primary_keys[name.to_s]
+    end
+
+    def data_source_exists? name
+      @tables.include? name.to_s
+    end
+
+    def columns name, message = nil
+      @columns[name.to_s]
+    end
+
+    def quote_table_name name
+      "\"#{name.to_s}\""
+    end
+
+    def quote_column_name name
+      "\"#{name.to_s}\""
+    end
+
+    def schema_cache
+      self
+    end
+
+    def quote thing
+      case thing
+      when DateTime
+        "'#{thing.strftime("%Y-%m-%d %H:%M:%S")}'"
+      when Date
+        "'#{thing.strftime("%Y-%m-%d")}'"
+      when true
+        "'t'"
+      when false
+        "'f'"
+      when nil
+        'NULL'
+      when Numeric
+        thing
+      else
+        "'#{thing.to_s.gsub("'", "\\\\'")}'"
+      end
+    end
+  end
+
+  class ConnectionPool
+    class Spec < Struct.new(:config)
+    end
+
+    attr_reader :spec, :connection
+
+    def initialize
+      @spec = Spec.new(:adapter => 'america')
+      @connection = Connection.new
+      @connection.visitor = Arel::Visitors::ToSql.new(connection)
+    end
+
+    def with_connection
+      yield connection
+    end
+
+    def table_exists? name
+      connection.tables.include? name.to_s
+    end
+
+    def columns_hash
+      connection.columns_hash
+    end
+
+    def schema_cache
+      connection
+    end
+
+    def quote thing
+      connection.quote thing
+    end
+  end
+
+  class Base
+    attr_accessor :connection_pool
+
+    def initialize
+      @connection_pool = ConnectionPool.new
+    end
+
+    def connection
+      connection_pool.connection
+    end
+  end
+end