70 lines
2 KiB
Ruby
70 lines
2 KiB
Ruby
require "cases/helper"
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class CopyTableTest < ActiveRecord::TestCase
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fixtures :companies, :comments
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def setup
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@connection = ActiveRecord::Base.connection
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class << @connection
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public :copy_table, :table_structure, :indexes
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end
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end
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def test_copy_table(from = 'companies', to = 'companies2', options = {})
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assert_nothing_raised {copy_table(from, to, options)}
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assert_equal row_count(from), row_count(to)
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if block_given?
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yield from, to, options
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else
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assert_equal column_names(from), column_names(to)
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end
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@connection.drop_table(to) rescue nil
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end
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def test_copy_table_renaming_column
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test_copy_table('companies', 'companies2',
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:rename => {'client_of' => 'fan_of'}) do |from, to, options|
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expected = column_values(from, 'client_of')
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assert expected.any?, 'only nils in resultset; real values are needed'
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assert_equal expected, column_values(to, 'fan_of')
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end
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end
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def test_copy_table_with_index
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test_copy_table('comments', 'comments_with_index') do
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@connection.add_index('comments_with_index', ['post_id', 'type'])
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test_copy_table('comments_with_index', 'comments_with_index2') do
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assert_equal table_indexes_without_name('comments_with_index'),
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table_indexes_without_name('comments_with_index2')
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end
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end
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end
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def test_copy_table_without_primary_key
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test_copy_table('developers_projects', 'programmers_projects')
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end
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protected
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def copy_table(from, to, options = {})
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@connection.copy_table(from, to, {:temporary => true}.merge(options))
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end
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def column_names(table)
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@connection.table_structure(table).map {|column| column['name']}
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end
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def column_values(table, column)
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@connection.select_all("SELECT #{column} FROM #{table} ORDER BY id").map {|row| row[column]}
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end
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def table_indexes_without_name(table)
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@connection.indexes('comments_with_index').delete(:name)
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end
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def row_count(table)
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@connection.select_one("SELECT COUNT(*) AS count FROM #{table}")['count']
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end
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end
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