adding some behavioral tests for the sqlite adapter. [#5065 state:resolved]

Signed-off-by: Nwycats <wycats@gmail.com>

activerecord/test/cases/adapters/sqlite/sqlite_adapter_test.rb

+require "cases/helper"
+
+module ActiveRecord
+  module ConnectionAdapters
+    class SQLiteAdapterTest < ActiveRecord::TestCase
+      def setup
+        @ctx = Base.sqlite3_connection :database => ':memory:',
+                                      :adapter => 'sqlite3',
+                                      :timeout => nil
+        @ctx.execute <<-eosql
+          CREATE TABLE items (
+            id integer PRIMARY KEY AUTOINCREMENT,
+            number integer
+          )
+        eosql
+      end
+
+      def test_execute
+        @ctx.execute "INSERT INTO items (number) VALUES (10)"
+        records = @ctx.execute "SELECT * FROM items"
+        assert_equal 1, records.length
+
+        record = records.first
+        assert_equal 10, record['number']
+        assert_equal 1, record['id']
+      end
+
+      def test_quote_string
+        assert_equal "''", @ctx.quote_string("'")
+      end
+
+      def test_insert_sql
+        2.times do |i|
+          rv = @ctx.insert_sql "INSERT INTO items (number) VALUES (#{i})"
+          assert_equal(i + 1, rv)
+        end
+
+        records = @ctx.execute "SELECT * FROM items"
+        assert_equal 2, records.length
+      end
+
+      def test_insert_sql_logged
+        sql = "INSERT INTO items (number) VALUES (10)"
+        name = "foo"
+
+        assert_logged([[sql, name]]) do
+          @ctx.insert_sql sql, name
+        end
+      end
+
+      def test_insert_id_value_returned
+        sql = "INSERT INTO items (number) VALUES (10)"
+        idval = 'vuvuzela'
+        id = @ctx.insert_sql sql, nil, nil, idval
+        assert_equal idval, id
+      end
+
+      def test_select_rows
+        2.times do |i|
+          @ctx.create "INSERT INTO items (number) VALUES (#{i})"
+        end
+        rows = @ctx.select_rows 'select number, id from items'
+        assert_equal [[0, 1], [1, 2]], rows
+      end
+
+      def test_select_rows_logged
+        sql = "select * from items"
+        name = "foo"
+
+        assert_logged([[sql, name]]) do
+          @ctx.select_rows sql, name
+        end
+      end
+
+      def test_transaction
+        count_sql = 'select count(*) from items'
+
+        @ctx.begin_db_transaction
+        @ctx.create "INSERT INTO items (number) VALUES (10)"
+
+        assert_equal 1, @ctx.select_rows(count_sql).first.first
+        @ctx.rollback_db_transaction
+        assert_equal 0, @ctx.select_rows(count_sql).first.first
+      end
+
+      def assert_logged logs
+        @ctx.extend(Module.new {
+          attr_reader :logged
+          def log sql, name
+            @logged ||= []
+            @logged << [sql, name]
+            yield
+          end
+        })
+        yield
+        assert_equal logs, @ctx.logged
+      end
+    end
+  end
+end