discourse/spec/lib/migration/safe_migrate_spec.rb

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# frozen_string_literal: true
RSpec.describe Migration::SafeMigrate do
before { Migration::SafeMigrate::SafeMigration.disable_safe! }
after do
Migration::SafeMigrate.disable!
Migration::SafeMigrate::SafeMigration.enable_safe!
end
def migrate_up(path)
migrations = ActiveRecord::MigrationContext.new(path, ActiveRecord::SchemaMigration).migrations
ActiveRecord::Migrator.new(
:up,
migrations,
ActiveRecord::SchemaMigration,
migrations.first.version,
).run
end
it "bans all table removal" do
Migration::SafeMigrate.enable!
path = File.expand_path "#{Rails.root}/spec/fixtures/db/migrate/drop_table"
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output = capture_stdout { expect do migrate_up(path) end.to raise_error(StandardError) }
expect(output).to include("rails g post_migration")
expect { User.first }.not_to raise_error
expect(User.first).not_to eq(nil)
end
it "bans all table renames" do
Migration::SafeMigrate.enable!
path = File.expand_path "#{Rails.root}/spec/fixtures/db/migrate/rename_table"
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output = capture_stdout { expect do migrate_up(path) end.to raise_error(StandardError) }
expect { User.first }.not_to raise_error
expect(User.first).not_to eq(nil)
expect(output).to include("rails g post_migration")
end
it "bans all column removal" do
Migration::SafeMigrate.enable!
path = File.expand_path "#{Rails.root}/spec/fixtures/db/migrate/remove_column"
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output = capture_stdout { expect do migrate_up(path) end.to raise_error(StandardError) }
expect(output).to include("rails g post_migration")
expect(User.first).not_to eq(nil)
expect { User.first.username }.not_to raise_error
end
it "bans all column renames" do
Migration::SafeMigrate.enable!
path = File.expand_path "#{Rails.root}/spec/fixtures/db/migrate/rename_column"
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output = capture_stdout { expect do migrate_up(path) end.to raise_error(StandardError) }
expect(output).to include("rails g post_migration")
expect(User.first).not_to eq(nil)
expect { User.first.username }.not_to raise_error
end
it "supports being disabled" do
Migration::SafeMigrate.enable!
Migration::SafeMigrate.disable!
path = File.expand_path "#{Rails.root}/spec/fixtures/db/migrate/drop_table"
output = capture_stdout { migrate_up(path) }
expect(output).to include("drop_table(:email_logs)")
end
describe "for a post deployment migration" do
it "should not ban unsafe migrations using up" do
Migration::SafeMigrate::SafeMigration.enable_safe!
path = File.expand_path "#{Rails.root}/spec/fixtures/db/post_migrate/drop_table"
output = capture_stdout { migrate_up(path) }
expect(output).to include("drop_table(:email_logs)")
end
it "should not ban unsafe migrations using change" do
Migration::SafeMigrate::SafeMigration.enable_safe!
path = File.expand_path "#{Rails.root}/spec/fixtures/db/post_migrate/change"
output = capture_stdout { migrate_up(path) }
expect(output).to include("drop_table(:email_logs)")
end
end
end