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require "cases/helper"
class SchemaDumperTest < ActiveRecord::TestCase
def setup
super
ActiveRecord::SchemaMigration.create_table
@stream = StringIO.new
end
def standard_dump
@stream = StringIO.new
ActiveRecord::SchemaDumper.ignore_tables = []
ActiveRecord::SchemaDumper.dump(ActiveRecord::Base.connection, @stream)
@stream.string
end
def test_dump_schema_information_outputs_lexically_ordered_versions
versions = %w{ 20100101010101 20100201010101 20100301010101 }
versions.reverse.each do |v|
ActiveRecord::SchemaMigration.create!(
:version => v, :migrated_at => Time.now,
:fingerprint => "123456789012345678901234567890ab", :name => "anon")
end
schema_info = ActiveRecord::Base.connection.dump_schema_information
assert_match(/20100201010101.*20100301010101/m, schema_info)
target_line = %q{INSERT INTO schema_migrations (version, migrated_at, fingerprint, name) VALUES ('20100101010101',LOCALTIMESTAMP,'123456789012345678901234567890ab','anon');}
assert_match target_line, schema_info
end
def test_magic_comment
assert_match "# encoding: #{@stream.external_encoding.name}", standard_dump
end
def test_schema_dump
output = standard_dump
assert_match %r{create_table "accounts"}, output
assert_match %r{create_table "authors"}, output
assert_no_match %r{create_table "schema_migrations"}, output
end
def test_schema_dump_includes_migrations
ActiveRecord::SchemaMigration.delete_all
ActiveRecord::Migrator.migrate(MIGRATIONS_ROOT + "/always_safe")
output = standard_dump
assert_match %r{migrations do}, output, "Missing migrations block"
assert_match %r{migration 1001, "[0-9a-f]{32}", "always_safe"}, output, "Missing migration line"
assert_match %r{migration 1002, "[0-9a-f]{32}", "still_safe"}, output, "Missing migration line"
end
def test_schema_dump_excludes_sqlite_sequence
output = standard_dump
assert_no_match %r{create_table "sqlite_sequence"}, output
end
def test_schema_dump_includes_camelcase_table_name
output = standard_dump
assert_match %r{create_table "CamelCase"}, output
end
def assert_line_up(lines, pattern, required = false)
return assert(true) if lines.empty?
matches = lines.map { |line| line.match(pattern) }
assert matches.all? if required
matches.compact!
return assert(true) if matches.empty?
assert_equal 1, matches.map{ |match| match.offset(0).first }.uniq.length
end
def column_definition_lines(output = standard_dump)
output.scan(/^( *)create_table.*?\n(.*?)^\1end/m).map{ |m| m.last.split(/\n/) }
end
def test_types_line_up
column_definition_lines.each do |column_set|
next if column_set.empty?
lengths = column_set.map do |column|
if match = column.match(/t\.(?:integer|decimal|float|datetime|timestamp|time|date|text|binary|string|boolean)\s+"/)
match[0].length
end
end
assert_equal 1, lengths.uniq.length
end
end
def test_arguments_line_up
column_definition_lines.each do |column_set|
assert_line_up(column_set, /default: /)
assert_line_up(column_set, /limit: /)
assert_line_up(column_set, /null: /)
end
end
def test_no_dump_errors
output = standard_dump
assert_no_match %r{\# Could not dump table}, output
end
def test_schema_dump_includes_not_null_columns
stream = StringIO.new
ActiveRecord::SchemaDumper.ignore_tables = [/^[^r]/]
ActiveRecord::SchemaDumper.dump(ActiveRecord::Base.connection, stream)
output = stream.string
assert_match %r{null: false}, output
end
def test_schema_dump_includes_limit_constraint_for_integer_columns
stream = StringIO.new
ActiveRecord::SchemaDumper.ignore_tables = [/^(?!integer_limits)/]
ActiveRecord::SchemaDumper.dump(ActiveRecord::Base.connection, stream)
output = stream.string
if current_adapter?(:PostgreSQLAdapter)
assert_match %r{c_int_1.*limit: 2}, output
assert_match %r{c_int_2.*limit: 2}, output
# int 3 is 4 bytes in postgresql
assert_match %r{c_int_3.*}, output
assert_no_match %r{c_int_3.*limit:}, output
assert_match %r{c_int_4.*}, output
assert_no_match %r{c_int_4.*limit:}, output
elsif current_adapter?(:MysqlAdapter) or current_adapter?(:Mysql2Adapter)
assert_match %r{c_int_1.*limit: 1}, output
assert_match %r{c_int_2.*limit: 2}, output
assert_match %r{c_int_3.*limit: 3}, output
assert_match %r{c_int_4.*}, output
assert_no_match %r{c_int_4.*:limit}, output
elsif current_adapter?(:SQLite3Adapter)
assert_match %r{c_int_1.*limit: 1}, output
assert_match %r{c_int_2.*limit: 2}, output
assert_match %r{c_int_3.*limit: 3}, output
assert_match %r{c_int_4.*limit: 4}, output
end
assert_match %r{c_int_without_limit.*}, output
assert_no_match %r{c_int_without_limit.*limit:}, output
if current_adapter?(:SQLite3Adapter)
assert_match %r{c_int_5.*limit: 5}, output
assert_match %r{c_int_6.*limit: 6}, output
assert_match %r{c_int_7.*limit: 7}, output
assert_match %r{c_int_8.*limit: 8}, output
elsif current_adapter?(:OracleAdapter)
assert_match %r{c_int_5.*limit: 5}, output
assert_match %r{c_int_6.*limit: 6}, output
assert_match %r{c_int_7.*limit: 7}, output
assert_match %r{c_int_8.*limit: 8}, output
else
assert_match %r{c_int_5.*limit: 8}, output
assert_match %r{c_int_6.*limit: 8}, output
assert_match %r{c_int_7.*limit: 8}, output
assert_match %r{c_int_8.*limit: 8}, output
end
end
def test_schema_dump_with_string_ignored_table
stream = StringIO.new
ActiveRecord::SchemaDumper.ignore_tables = ['accounts']
ActiveRecord::SchemaDumper.dump(ActiveRecord::Base.connection, stream)
output = stream.string
assert_no_match %r{create_table "accounts"}, output
assert_match %r{create_table "authors"}, output
assert_no_match %r{create_table "schema_migrations"}, output
end
def test_schema_dump_with_regexp_ignored_table
stream = StringIO.new
ActiveRecord::SchemaDumper.ignore_tables = [/^account/]
ActiveRecord::SchemaDumper.dump(ActiveRecord::Base.connection, stream)
output = stream.string
assert_no_match %r{create_table "accounts"}, output
assert_match %r{create_table "authors"}, output
assert_no_match %r{create_table "schema_migrations"}, output
end
def test_schema_dump_illegal_ignored_table_value
stream = StringIO.new
ActiveRecord::SchemaDumper.ignore_tables = [5]
assert_raise(StandardError) do
ActiveRecord::SchemaDumper.dump(ActiveRecord::Base.connection, stream)
end
end
def test_schema_dumps_index_columns_in_right_order
index_definition = standard_dump.split(/\n/).grep(/add_index.*companies/).first.strip
assert_equal 'add_index "companies", ["firm_id", "type", "rating"], name: "company_index"', index_definition
end
def test_schema_dumps_partial_indices
index_definition = standard_dump.split(/\n/).grep(/add_index.*company_partial_index/).first.strip
if current_adapter?(:PostgreSQLAdapter)
assert_equal 'add_index "companies", ["firm_id", "type"], name: "company_partial_index", where: "(rating > 10)"', index_definition
else
assert_equal 'add_index "companies", ["firm_id", "type"], name: "company_partial_index"', index_definition
end
end
def test_schema_dump_should_honor_nonstandard_primary_keys
output = standard_dump
match = output.match(%r{create_table "movies"(.*)do})
assert_not_nil(match, "nonstandardpk table not found")
assert_match %r(primary_key: "movieid"), match[1], "non-standard primary key not preserved"
end
if current_adapter?(:MysqlAdapter) or current_adapter?(:Mysql2Adapter)
def test_schema_dump_should_not_add_default_value_for_mysql_text_field
output = standard_dump
assert_match %r{t.text\s+"body",\s+null: false$}, output
end
def test_schema_dump_includes_length_for_mysql_binary_fields
output = standard_dump
assert_match %r{t.binary\s+"var_binary",\s+limit: 255$}, output
assert_match %r{t.binary\s+"var_binary_large",\s+limit: 4095$}, output
end
def test_schema_dump_includes_length_for_mysql_blob_and_text_fields
output = standard_dump
assert_match %r{t.binary\s+"tiny_blob",\s+limit: 255$}, output
assert_match %r{t.binary\s+"normal_blob"$}, output
assert_match %r{t.binary\s+"medium_blob",\s+limit: 16777215$}, output
assert_match %r{t.binary\s+"long_blob",\s+limit: 2147483647$}, output
assert_match %r{t.text\s+"tiny_text",\s+limit: 255$}, output
assert_match %r{t.text\s+"normal_text"$}, output
assert_match %r{t.text\s+"medium_text",\s+limit: 16777215$}, output
assert_match %r{t.text\s+"long_text",\s+limit: 2147483647$}, output
end
end
def test_schema_dump_includes_decimal_options
stream = StringIO.new
ActiveRecord::SchemaDumper.ignore_tables = [/^[^n]/]
ActiveRecord::SchemaDumper.dump(ActiveRecord::Base.connection, stream)
output = stream.string
assert_match %r{precision: 3,[[:space:]]+scale: 2,[[:space:]]+default: 2.78}, output
end
if current_adapter?(:PostgreSQLAdapter)
def test_schema_dump_includes_xml_shorthand_definition
output = standard_dump
if %r{create_table "postgresql_xml_data_type"} =~ output
assert_match %r{t.xml "data"}, output
end
end
def test_schema_dump_includes_json_shorthand_definition
output = standard_dump
if %r{create_table "postgresql_json_data_type"} =~ output
assert_match %r|t.json "json_data", default: {}|, output
end
end
def test_schema_dump_includes_inet_shorthand_definition
output = standard_dump
if %r{create_table "postgresql_network_address"} =~ output
assert_match %r{t.inet "inet_address"}, output
end
end
def test_schema_dump_includes_cidr_shorthand_definition
output = standard_dump
if %r{create_table "postgresql_network_address"} =~ output
assert_match %r{t.cidr "cidr_address"}, output
end
end
def test_schema_dump_includes_macaddr_shorthand_definition
output = standard_dump
if %r{create_table "postgresql_network_address"} =~ output
assert_match %r{t.macaddr "macaddr_address"}, output
end
end
def test_schema_dump_includes_uuid_shorthand_definition
output = standard_dump
if %r{create_table "poistgresql_uuids"} =~ output
assert_match %r{t.uuid "guid"}, output
end
end
def test_schema_dump_includes_hstores_shorthand_definition
output = standard_dump
if %r{create_table "postgresql_hstores"} =~ output
assert_match %r[t.hstore "hash_store", default: {}], output
end
end
def test_schema_dump_includes_arrays_shorthand_definition
output = standard_dump
if %r{create_table "postgresql_arrays"} =~ output
assert_match %r[t.text\s+"nicknames",\s+array: true], output
assert_match %r[t.integer\s+"commission_by_quarter",\s+array: true], output
end
end
def test_schema_dump_includes_tsvector_shorthand_definition
output = standard_dump
if %r{create_table "postgresql_tsvectors"} =~ output
assert_match %r{t.tsvector "text_vector"}, output
end
end
end
def test_schema_dump_keeps_large_precision_integer_columns_as_decimal
output = standard_dump
# Oracle supports precision up to 38 and it identifies decimals with scale 0 as integers
if current_adapter?(:OracleAdapter)
assert_match %r{t.integer\s+"atoms_in_universe",\s+precision: 38,\s+scale: 0}, output
else
assert_match %r{t.decimal\s+"atoms_in_universe",\s+precision: 55,\s+scale: 0}, output
end
end
def test_schema_dump_keeps_id_column_when_id_is_false_and_id_column_added
output = standard_dump
match = output.match(%r{create_table "goofy_string_id"(.*)do.*\n(.*)\n})
assert_not_nil(match, "goofy_string_id table not found")
assert_match %r(id: false), match[1], "no table id not preserved"
assert_match %r{t.string[[:space:]]+"id",[[:space:]]+null: false$}, match[2], "non-primary key id column not preserved"
end
def test_schema_dump_keeps_id_false_when_id_is_false_and_unique_not_null_column_added
output = standard_dump
assert_match %r{create_table "subscribers", id: false}, output
end
class CreateDogMigration < ActiveRecord::Migration
def up
create_table("dogs") do |t|
t.column :name, :string
end
add_index "dogs", [:name]
end
def down
drop_table("dogs")
end
end
def test_schema_dump_with_table_name_prefix_and_suffix
original, $stdout = $stdout, StringIO.new
ActiveRecord::Base.table_name_prefix = 'foo_'
ActiveRecord::Base.table_name_suffix = '_bar'
migration = CreateDogMigration.new
migration.migrate(:up)
output = standard_dump
assert_no_match %r{create_table "foo_.+_bar"}, output
assert_no_match %r{create_index "foo_.+_bar"}, output
assert_no_match %r{create_table "schema_migrations"}, output
ensure
migration.migrate(:down)
ActiveRecord::Base.table_name_suffix = ActiveRecord::Base.table_name_prefix = ''
$stdout = original
end
end
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