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# frozen_string_literal: true
require "spec_helper"
describe DataMigrate::Data do
let(:subject) { DataMigrate::Data }
let(:db_config) do
{
adapter: "sqlite3",
database: "spec/db/test.db"
}
end
let(:fixture_file_timestamps) do
%w[20091231235959 20101231235959 20111231235959]
end
around do |example|
Dir.mktmpdir do |temp_dir|
@temp_dir = temp_dir
# create the fake data migration files
fixture_file_timestamps.each do |timestamp|
FileUtils.touch File.join(temp_dir, "#{timestamp}_data_migration.rb")
end
example.run
end
end
describe :define do
before do
allow(DataMigrate::DataMigrator).
to receive(:db_config) { db_config }
end
after do
ActiveRecord::Migration.drop_table("data_migrations")
end
context "when no version is supplied" do
it "returns nil" do
expect(subject.define(version: nil)).to be_nil
end
end
context "when a version is supplied" do
before do
allow(DataMigrate::DataMigrator).
to receive(:full_migrations_path).and_return(@temp_dir)
end
it "sets the current version to the supplied version" do
version = fixture_file_timestamps[1]
expect(DataMigrate::DataMigrator.current_version).not_to eq version.to_i
subject.define(version: version)
expect(DataMigrate::DataMigrator.current_version).to eq version.to_i
end
it "creates entries for migration versions that come " \
"before the supplied version" do
version = fixture_file_timestamps[1]
subject.define(version: version)
sql_select = <<-SQL
SELECT version
FROM #{DataMigrate::DataSchemaMigration.table_name}
SQL
db_list_data = ActiveRecord::Base.connection.
select_values(sql_select).map(&:to_i)
expect(db_list_data).to match_array(
[fixture_file_timestamps[0], fixture_file_timestamps[1]].map(&:to_i)
)
# The last remaining migration (fixture_file_timestamps[2]) was
# not included as part of the supplied version and so should not
# appear in the data_migrations table.
expect(db_list_data).not_to include(fixture_file_timestamps[2])
end
end
end
end
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