mirror of https://github.com/jackc/pgx.git
136 lines
3.7 KiB
Go
136 lines
3.7 KiB
Go
package pool_test
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import (
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"context"
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"testing"
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"time"
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"github.com/jackc/pgconn"
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"github.com/jackc/pgx/v4"
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"github.com/stretchr/testify/assert"
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"github.com/stretchr/testify/require"
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)
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// Conn.Release is an asynchronous process that returns immediately. There is no signal when the actual work is
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// completed. To test something that relies on the actual work for Conn.Release being completed we must simply wait.
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// This function wraps the sleep so there is more meaning for the callers.
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func waitForReleaseToComplete() {
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time.Sleep(5 * time.Millisecond)
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}
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type execer interface {
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Exec(ctx context.Context, sql string, arguments ...interface{}) (pgconn.CommandTag, error)
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}
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func testExec(t *testing.T, db execer) {
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results, err := db.Exec(context.Background(), "create table foo(id integer primary key);")
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require.NoError(t, err)
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assert.Equal(t, "CREATE TABLE", string(results))
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results, err = db.Exec(context.Background(), "insert into foo(id) values($1)", 1)
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require.NoError(t, err)
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assert.Equal(t, "INSERT 0 1", string(results))
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results, err = db.Exec(context.Background(), "drop table foo;")
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require.NoError(t, err)
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assert.Equal(t, "DROP TABLE", string(results))
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}
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type queryer interface {
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Query(ctx context.Context, sql string, args ...interface{}) (pgx.Rows, error)
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}
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func testQuery(t *testing.T, db queryer) {
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var sum, rowCount int32
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rows, err := db.Query(context.Background(), "select generate_series(1,$1)", 10)
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require.NoError(t, err)
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for rows.Next() {
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var n int32
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rows.Scan(&n)
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sum += n
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rowCount++
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}
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assert.NoError(t, rows.Err())
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assert.Equal(t, int32(10), rowCount)
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assert.Equal(t, int32(55), sum)
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}
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type queryRower interface {
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QueryRow(ctx context.Context, sql string, args ...interface{}) pgx.Row
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}
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func testQueryRow(t *testing.T, db queryRower) {
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var what, who string
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err := db.QueryRow(context.Background(), "select 'hello', $1", "world").Scan(&what, &who)
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assert.NoError(t, err)
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assert.Equal(t, "hello", what)
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assert.Equal(t, "world", who)
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}
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type sendBatcher interface {
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SendBatch(context.Context, *pgx.Batch) pgx.BatchResults
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}
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func testSendBatch(t *testing.T, db sendBatcher) {
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batch := &pgx.Batch{}
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batch.Queue("select 1", nil, nil, nil)
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batch.Queue("select 2", nil, nil, nil)
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br := db.SendBatch(context.Background(), batch)
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var err error
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var n int32
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err = br.QueryRowResults().Scan(&n)
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assert.NoError(t, err)
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assert.EqualValues(t, 1, n)
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err = br.QueryRowResults().Scan(&n)
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assert.NoError(t, err)
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assert.EqualValues(t, 2, n)
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err = br.Close()
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assert.NoError(t, err)
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}
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type copyFromer interface {
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CopyFrom(context.Context, pgx.Identifier, []string, pgx.CopyFromSource) (int64, error)
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}
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func testCopyFrom(t *testing.T, db interface {
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execer
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queryer
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copyFromer
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}) {
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_, err := db.Exec(context.Background(), `create temporary table foo(a int2, b int4, c int8, d varchar, e text, f date, g timestamptz)`)
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require.NoError(t, err)
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tzedTime := time.Date(2010, 2, 3, 4, 5, 6, 0, time.Local)
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inputRows := [][]interface{}{
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{int16(0), int32(1), int64(2), "abc", "efg", time.Date(2000, 1, 1, 0, 0, 0, 0, time.UTC), tzedTime},
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{nil, nil, nil, nil, nil, nil, nil},
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}
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copyCount, err := db.CopyFrom(context.Background(), pgx.Identifier{"foo"}, []string{"a", "b", "c", "d", "e", "f", "g"}, pgx.CopyFromRows(inputRows))
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assert.NoError(t, err)
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assert.EqualValues(t, len(inputRows), copyCount)
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rows, err := db.Query(context.Background(), "select * from foo")
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assert.NoError(t, err)
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var outputRows [][]interface{}
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for rows.Next() {
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row, err := rows.Values()
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if err != nil {
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t.Errorf("Unexpected error for rows.Values(): %v", err)
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}
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outputRows = append(outputRows, row)
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}
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assert.NoError(t, rows.Err())
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assert.Equal(t, inputRows, outputRows)
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}
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