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// SPDX-FileCopyrightText: 2026 Stefan Majewsky <majewsky@gmx.net>
// SPDX-License-Identifier: Apache-2.0
package pgruntime_test
import (
"testing"
"go.xyrillian.de/gg/assert"
)
func TestMultipleConnectionsToSameDB(t *testing.T) {
ctx := t.Context()
// connect once, create a fresh table and a record
db1, target := connector.ConnectForTest(t, defaultBehavior)
for _, query := range []string{
`DROP TABLE IF EXISTS objects`,
`CREATE TABLE objects (id BIGSERIAL PRIMARY KEY, name TEXT NOT NULL)`,
`INSERT INTO objects (name) VALUES ('foo')`, // -> id = 1
`INSERT INTO objects (name) VALUES ('bar')`, // -> id = 2
} {
_, err := execQuery(ctx, db1, query, nil)
if err != nil {
t.Fatalf("in query %q: %s", query, err.Error())
}
}
// a second connection made with Connect() should see that data
db2, err := connector.Connect(ctx, target, defaultBehavior)
if err != nil {
t.Fatal(err.Error())
}
barID, err := selectOneValue[int64](ctx, db2, `SELECT id FROM objects WHERE name = $1`, "bar")
if assert.ErrEqual(t, err, nil) {
assert.Equal(t, barID, 2)
}
// another connection with ConnectForTest() should truncate all tables and reset all sequences
db3, target2 := connector.ConnectForTest(t, defaultBehavior)
assert.Equal(t, target, target2)
var count int64
err = queryRow(ctx, db3, `SELECT COUNT(*) FROM objects`, nil, []any{&count})
if assert.ErrEqual(t, err, nil) {
assert.Equal(t, count, 0)
}
nextID, err := selectOneValue[int64](ctx, db3, `INSERT INTO objects (name) VALUES ($1) RETURNING id`, "qux")
if assert.ErrEqual(t, err, nil) {
assert.Equal(t, nextID, 1) // sequence was reset and starts at 1 again
}
}
func TestOverlongDatabaseName(t *testing.T) {
t.Run("that is so very long and ridiculous oh my god how is it still going wtf", func(t *testing.T) {
_, target := connector.ConnectForTest(t, defaultBehavior)
const expectedPrefix = "testoverlongdatabasename_that_is_so_very_long_and_rid__"
assert.Equal(t, target.DatabaseName, expectedPrefix+target.DatabaseName[len(expectedPrefix):63])
})
}
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