79 lines
2.7 KiB
Ruby
79 lines
2.7 KiB
Ruby
require 'rspec/core'
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require 'rspec/expectations'
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require 'rspec/mocks'
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require 'mocha'
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require_relative '../../lib/importer/query_batcher'
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require_relative '../factories/pg_connection'
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module CartoDB
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module Importer2
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describe QueryBatcher do
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before do
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conn = Factories::PGConnection.new
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@db = conn.connection
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@pg_options = conn.pg_options
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@table_name = 'cdbid_query_batcher_table_test'
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@n_values = 3
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@batch_size = 1
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end
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def fetch(query, column = :value)
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@db.fetch(query).all.map { |r| r[column] }
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end
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before(:each) do
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@db.run(%Q[create table #{@table_name} (cartodb_id integer, value integer)])
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@db.run(%Q[insert into #{@table_name}(cartodb_id) select generate_series(1, #{@n_values})])
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@db.run(%Q[update #{@table_name} set value = cartodb_id])
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end
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after(:each) do
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@db.drop_table @table_name
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end
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describe '#execute_update' do
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before(:each) do
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@qb = QueryBatcher.new(@db, nil, false, @batch_size)
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@qb_big_batch = QueryBatcher.new(@db, nil, false, @n_values + 1)
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end
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it 'processes every row' do
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@qb.execute_update(%Q[update #{@table_name} set value = value * 10], 'public', @table_name)
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fetch(%Q[select * from #{@table_name} order by cartodb_id]).should eq [10, 20, 30]
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end
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it 'processes every row for batch size bigger than table' do
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@qb_big_batch.execute_update(%Q[update #{@table_name} set value = value * 10], 'public', @table_name)
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fetch(%Q[select * from #{@table_name} order by cartodb_id]).should eq [10, 20, 30]
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end
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it 'processes every matching row for queries matching all rows' do
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@qb.execute_update(%Q[update #{@table_name} set value = value * 10 where cartodb_id % 1 = 0], 'public', @table_name)
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fetch(%Q[select * from #{@table_name} order by cartodb_id]).should eq [10, 20, 30]
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end
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it 'processes every matching row for queries not matching all rows' do
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@qb.execute_update(%Q[update #{@table_name} set value = value * 10 where cartodb_id % 2 = 0], 'public', @table_name)
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fetch(%Q[select * from #{@table_name} order by cartodb_id]).should eq [1,20, 3]
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end
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it 'does not fail with empty tables' do
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begin
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@db.run(%Q[create table empty_test_table (cartodb_id integer, value integer)])
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@qb.execute_update(%Q[update empty_test_table set value = value * 10 where cartodb_id % 2 = 0], 'public', 'empty_test_table')
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fetch(%Q[select * from empty_test_table order by cartodb_id]).should eq []
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ensure
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@db.drop_table 'empty_test_table'
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end
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end
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end
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end
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end
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end
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