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require "spec_helper"
describe DataMigrate::DataMigrator do
let(:context) {
if (Rails::VERSION::MAJOR == 6)
DataMigrate::MigrationContext.new("spec/db/data-6.0")
else
DataMigrate::MigrationContext.new("spec/db/data")
end
}
let(:schema_context) {
if (Rails::VERSION::MAJOR == 6)
ActiveRecord::MigrationContext.new("spec/db/migrate/6.0", ActiveRecord::Base.connection.schema_migration)
else
ActiveRecord::MigrationContext.new("spec/db/migrate/5.2")
end
}
before do
unless (Rails::VERSION::MAJOR == 5 and
Rails::VERSION::MINOR == 2) ||
Rails::VERSION::MAJOR == 6
skip("Tests are only applicable for Rails 5.2")
end
end
after do
begin
ActiveRecord::Migration.drop_table("data_migrations")
ActiveRecord::Migration.drop_table("schema_migrations")
rescue StandardError
nil
end
end
let(:db_config) do
{
adapter: "sqlite3",
database: "spec/db/test.db"
}
end
describe :migrate do
before do
ActiveRecord::Base.establish_connection(db_config)
ActiveRecord::SchemaMigration.create_table
end
after do
ActiveRecord::Migration.drop_table("data_migrations")
ActiveRecord::Migration.drop_table("schema_migrations")
end
it "migrates existing file" do
context.migrate(nil)
context.migrations_status
versions = DataMigrate::DataSchemaMigration.normalized_versions
expect(versions.count).to eq(2)
expect(versions).to include("20091231235959")
expect(versions).to include("20171231235959")
end
it "undo migration" do
context.migrate(nil)
context.run(:down, 20171231235959)
versions = DataMigrate::DataSchemaMigration.normalized_versions
expect(versions.count).to eq(1)
expect(versions).to include("20091231235959")
end
it "does not do anything if migration is undone twice" do
context.migrate(nil)
expect {
context.run(:down, 20171231235959)
}.to output(/Undoing SuperUpdate/).to_stdout
expect {
context.run(:down, 20171231235959)
}.not_to output(/Undoing SuperUpdate/).to_stdout
end
it "runs a specific migration" do
context.run(:up, 20171231235959)
versions = DataMigrate::DataSchemaMigration.normalized_versions
expect(versions.count).to eq(1)
expect(versions).to include("20171231235959")
end
it "does not do anything if migration is ran twice" do
expect {
context.run(:up, 20171231235959)
}.to output(/Doing SuperUpdate/).to_stdout
expect {
context.run(:down, 20171231235959)
}.not_to output(/Doing SuperUpdate/).to_stdout
end
it "alerts for an invalid specific migration" do
expect {
context.run(:up, 201712312)
}.to raise_error(
ActiveRecord::UnknownMigrationVersionError,
/No migration with version number 201712312/
)
end
it "rolls back latest migration" do
context.migrate(nil)
expect {
context.rollback
}.to output(/Undoing SuperUpdate/).to_stdout
versions = DataMigrate::DataSchemaMigration.normalized_versions
expect(versions.count).to eq(1)
expect(versions).to include("20091231235959")
end
it "rolls back 2 migrations" do
context.migrate(nil)
schema_context.migrate(nil)
expect {
context.rollback(2)
}.to output(/Undoing SomeName/).to_stdout
versions = DataMigrate::DataSchemaMigration.normalized_versions
expect(versions.count).to eq(0)
end
it "rolls back 2 migrations" do
context.migrate(nil)
expect {
context.rollback(2)
}.to output(/Undoing SomeName/).to_stdout
versions = DataMigrate::DataSchemaMigration.normalized_versions
expect(versions.count).to eq(0)
end
end
end
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