split riverdrivertest.go

Instead of a giant 5000 line file, split into smaller files grouped by
entity. For job queries where we have many tests, break them into files
by query type.

Author: bgentry

riverdriver/riverdrivertest/executor_tx.go

@@ -0,0 +1,232 @@
+package riverdrivertest
+
+import (
+	"context"
+	"testing"
+
+	"github.com/stretchr/testify/require"
+
+	"github.com/riverqueue/river/riverdbtest"
+	"github.com/riverqueue/river/riverdriver"
+	"github.com/riverqueue/river/rivershared/testfactory"
+	"github.com/riverqueue/river/rivershared/util/hashutil"
+	"github.com/riverqueue/river/rivershared/util/randutil"
+	"github.com/riverqueue/river/rivertype"
+)
+
+func exerciseExecutorTx[TTx any](ctx context.Context, t *testing.T,
+	driverWithSchema func(ctx context.Context, t *testing.T, opts *riverdbtest.TestSchemaOpts) (riverdriver.Driver[TTx], string),
+	executorWithTx func(ctx context.Context, t *testing.T) (riverdriver.Executor, riverdriver.Driver[TTx]),
+) {
+	t.Helper()
+
+	setup := func(ctx context.Context, t *testing.T) riverdriver.Executor {
+		t.Helper()
+
+		exec, _ := executorWithTx(ctx, t)
+		return exec
+	}
+
+	t.Run("Begin", func(t *testing.T) {
+		t.Parallel()
+
+		t.Run("BasicVisibility", func(t *testing.T) {
+			t.Parallel()
+
+			exec := setup(ctx, t)
+
+			tx, err := exec.Begin(ctx)
+			require.NoError(t, err)
+			t.Cleanup(func() { _ = tx.Rollback(ctx) })
+
+			// Job visible in subtransaction, but not parent.
+			{
+				job := testfactory.Job(ctx, t, tx, &testfactory.JobOpts{})
+				_ = testfactory.Job(ctx, t, tx, &testfactory.JobOpts{})
+
+				_, err := tx.JobGetByID(ctx, &riverdriver.JobGetByIDParams{ID: job.ID})
+				require.NoError(t, err)
+
+				require.NoError(t, tx.Rollback(ctx))
+
+				_, err = exec.JobGetByID(ctx, &riverdriver.JobGetByIDParams{ID: job.ID})
+				require.ErrorIs(t, err, rivertype.ErrNotFound)
+			}
+		})
+
+		t.Run("NestedTransactions", func(t *testing.T) {
+			t.Parallel()
+
+			exec := setup(ctx, t)
+
+			tx1, err := exec.Begin(ctx)
+			require.NoError(t, err)
+			t.Cleanup(func() { _ = tx1.Rollback(ctx) })
+
+			// Job visible in tx1, but not top level executor.
+			{
+				job1 := testfactory.Job(ctx, t, tx1, &testfactory.JobOpts{})
+
+				{
+					tx2, err := tx1.Begin(ctx)
+					require.NoError(t, err)
+					t.Cleanup(func() { _ = tx2.Rollback(ctx) })
+
+					// Job visible in tx2, but not top level executor.
+					{
+						job2 := testfactory.Job(ctx, t, tx2, &testfactory.JobOpts{})
+
+						_, err := tx2.JobGetByID(ctx, &riverdriver.JobGetByIDParams{ID: job2.ID})
+						require.NoError(t, err)
+
+						require.NoError(t, tx2.Rollback(ctx))
+
+						_, err = tx1.JobGetByID(ctx, &riverdriver.JobGetByIDParams{ID: job2.ID})
+						require.ErrorIs(t, err, rivertype.ErrNotFound)
+					}
+
+					_, err = tx1.JobGetByID(ctx, &riverdriver.JobGetByIDParams{ID: job1.ID})
+					require.NoError(t, err)
+				}
+
+				// Repeat the same subtransaction again.
+				{
+					tx2, err := tx1.Begin(ctx)
+					require.NoError(t, err)
+					t.Cleanup(func() { _ = tx2.Rollback(ctx) })
+
+					job2 := testfactory.Job(ctx, t, tx2, &testfactory.JobOpts{})
+
+					_, err = tx2.JobGetByID(ctx, &riverdriver.JobGetByIDParams{ID: job2.ID})
+					require.NoError(t, err)
+
+					require.NoError(t, tx2.Rollback(ctx))
+
+					_, err = tx1.JobGetByID(ctx, &riverdriver.JobGetByIDParams{ID: job2.ID})
+					require.ErrorIs(t, err, rivertype.ErrNotFound)
+				}
+
+				_, err = tx1.JobGetByID(ctx, &riverdriver.JobGetByIDParams{ID: job1.ID})
+				require.NoError(t, err)
+			}
+		})
+
+		t.Run("RollbackAfterCommit", func(t *testing.T) {
+			t.Parallel()
+
+			exec := setup(ctx, t)
+
+			tx1, err := exec.Begin(ctx)
+			require.NoError(t, err)
+			t.Cleanup(func() { _ = tx1.Rollback(ctx) })
+
+			tx2, err := tx1.Begin(ctx)
+			require.NoError(t, err)
+			t.Cleanup(func() { _ = tx2.Rollback(ctx) })
+
+			job := testfactory.Job(ctx, t, tx2, &testfactory.JobOpts{})
+
+			require.NoError(t, tx2.Commit(ctx))
+			_ = tx2.Rollback(ctx) // "tx is closed" error generally returned, but don't require this
+
+			// Despite rollback being called after commit, the job is still
+			// visible from the outer transaction.
+			_, err = tx1.JobGetByID(ctx, &riverdriver.JobGetByIDParams{ID: job.ID})
+			require.NoError(t, err)
+		})
+	})
+
+	t.Run("Exec", func(t *testing.T) {
+		t.Parallel()
+
+		t.Run("NoArgs", func(t *testing.T) {
+			t.Parallel()
+
+			exec := setup(ctx, t)
+
+			require.NoError(t, exec.Exec(ctx, "SELECT 1 + 2"))
+		})
+
+		t.Run("WithArgs", func(t *testing.T) {
+			t.Parallel()
+
+			exec := setup(ctx, t)
+
+			require.NoError(t, exec.Exec(ctx, "SELECT $1 || $2", "foo", "bar"))
+		})
+	})
+
+	t.Run("PGAdvisoryXactLock", func(t *testing.T) {
+		t.Parallel()
+
+		{
+			driver, _ := driverWithSchema(ctx, t, nil)
+			if driver.DatabaseName() == databaseNameSQLite {
+				t.Logf("Skipping PGAdvisoryXactLock test for SQLite")
+				return
+			}
+		}
+
+		exec := setup(ctx, t)
+
+		// It's possible for multiple versions of this test to be running at the
+		// same time (from different drivers), so make sure the lock we're
+		// acquiring per test is unique by using the complete test name. Also
+		// add randomness in case a test is run multiple times with `-count`.
+		lockHash := hashutil.NewAdvisoryLockHash(0)
+		lockHash.Write([]byte(t.Name()))
+		lockHash.Write([]byte(randutil.Hex(10)))
+		key := lockHash.Key()
+
+		// Tries to acquire the given lock from another test transaction and
+		// returns true if the lock was acquired.
+		tryAcquireLock := func(exec riverdriver.Executor) bool {
+			var lockAcquired bool
+			require.NoError(t, exec.QueryRow(ctx, "SELECT pg_try_advisory_lock($1)", key).Scan(&lockAcquired))
+			return lockAcquired
+		}
+
+		// Start a transaction to acquire the lock so we can later release the
+		// lock by rolling back.
+		execTx, err := exec.Begin(ctx)
+		require.NoError(t, err)
+
+		// Acquire the advisory lock on the main test transaction.
+		_, err = execTx.PGAdvisoryXactLock(ctx, key)
+		require.NoError(t, err)
+
+		// Start another test transaction unrelated to the first.
+		otherExec, _ := executorWithTx(ctx, t)
+
+		// The other test transaction is unable to acquire the lock because the
+		// first test transaction holds it.
+		require.False(t, tryAcquireLock(otherExec))
+
+		// Roll back the first test transaction to release the lock.
+		require.NoError(t, execTx.Rollback(ctx))
+
+		// The other test transaction can now acquire the lock.
+		require.True(t, tryAcquireLock(otherExec))
+	})
+
+	t.Run("QueryRow", func(t *testing.T) {
+		t.Parallel()
+
+		exec := setup(ctx, t)
+
+		var (
+			field1   int
+			field2   int
+			field3   int
+			fieldFoo string
+		)
+
+		err := exec.QueryRow(ctx, "SELECT 1, 2, 3, 'foo'").Scan(&field1, &field2, &field3, &fieldFoo)
+		require.NoError(t, err)
+
+		require.Equal(t, 1, field1)
+		require.Equal(t, 2, field2)
+		require.Equal(t, 3, field3)
+		require.Equal(t, "foo", fieldFoo)
+	})
+}