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# frozen_string_literal: true
require "spec_helper"
describe DataMigrate::StatusService do
let(:subject) { DataMigrate::SchemaDumper }
let(:db_config) do
{
adapter: "sqlite3",
database: "spec/db/test.db"
}
end
let(:service) { DataMigrate::StatusService }
context "table does not exists" do
before do
ActiveRecord::Base.establish_connection(db_config)
end
it "show error message" do
allow_any_instance_of(service).to receive(:table_name) { "bogus"}
stream = StringIO.new
service.dump(ActiveRecord::Base.connection, stream)
stream.rewind
expected = "Data migrations table does not exist"
expect(stream.read).to include expected
end
end
context "table exists" do
let(:fixture_file_timestamps) do
%w[20091231235959 20101231235959 20111231235959]
end
before do
allow(DataMigrate::DataMigrator).
to receive(:db_config) { db_config }.at_least(:once)
ActiveRecord::Base.establish_connection(db_config)
ActiveRecord::SchemaMigration.create_table
DataMigrate::DataMigrator.assure_data_schema_table
ActiveRecord::Base.connection.execute <<-SQL
INSERT INTO #{DataMigrate::DataSchemaMigration.table_name}
VALUES #{fixture_file_timestamps.map { |t| "(#{t})" }.join(', ')}
SQL
allow_any_instance_of(service).to receive(:root_folder) { "./" }
end
after do
ActiveRecord::Migration.drop_table("data_migrations")
end
it "shows successfully executed migration" do
stream = StringIO.new
service.dump(ActiveRecord::Base.connection, stream)
stream.rewind
expected = " up 20091231235959 Some name"
expect(stream.read).to include expected
end
it "excludes files without .rb extension" do
stream = StringIO.new
service.dump(ActiveRecord::Base.connection, stream)
stream.rewind
expected = "20181128000207 Excluded file"
expect(stream.read).to_not include expected
end
it "shows missing file migration" do
stream = StringIO.new
service.dump(ActiveRecord::Base.connection, stream)
stream.rewind
expected = " up 20101231235959 ********** NO FILE **********"
s = stream.read
expect(s).to include expected
end
it "shows migration that has not run yet" do
stream = StringIO.new
service.dump(ActiveRecord::Base.connection, stream)
stream.rewind
expected = " down 20171231235959 Super update"
s = stream.read
expect(s).to include expected
end
it "outputs migrations in chronological order" do
stream = StringIO.new
service.dump(ActiveRecord::Base.connection, stream)
stream.rewind
s = stream.read
expect(s.index("20091231235959")).to be < s.index("20111231235959")
end
end
end
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