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parser_test.go
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parser_test.go
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// Licensed to Elasticsearch B.V. under one or more contributor
// license agreements. See the NOTICE file distributed with
// this work for additional information regarding copyright
// ownership. Elasticsearch B.V. licenses this file to you under
// the Apache License, Version 2.0 (the "License"); you may
// not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing,
// software distributed under the License is distributed on an
// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
// KIND, either express or implied. See the License for the
// specific language governing permissions and limitations
// under the License.
package pgutil_test
import (
"os"
"testing"
apmpq "go.elastic.co/apm/module/apmsql/pq"
"github.com/stretchr/testify/assert"
"go.elastic.co/apm/internal/pgutil"
"go.elastic.co/apm/module/apmsql"
)
func patchEnv(k, v string) func() {
old, reset := os.LookupEnv(k)
os.Setenv(k, v)
if reset {
return func() { os.Setenv(k, old) }
} else {
return func() { os.Unsetenv(k) }
}
}
func TestParseDSNURL(t *testing.T) {
for _, k := range []string{"PGDATABASE", "PGUSER", "PGHOST", "PGPORT"} {
unpatch := patchEnv(k, "")
defer unpatch()
}
test := func(url, addr string, port int) {
info := pgutil.ParseDSN(url)
assert.Equal(t, apmsql.DSNInfo{
Address: addr,
Port: port,
Database: "dbinst",
User: "user",
}, info)
}
test("postgresql://user:pass@localhost/dbinst", "localhost", 5432)
test("postgresql://user:pass@localhost:5432/dbinst", "localhost", 5432)
test("postgresql://user:pass@localhost:5433/dbinst", "localhost", 5433)
test("postgresql://user:pass@127.0.0.1/dbinst", "127.0.0.1", 5432)
test("postgresql://user:pass@[::1]:1234/dbinst", "::1", 1234)
test("postgresql://user:pass@[::1]/dbinst", "::1", 5432)
test("postgresql://user:pass@::1/dbinst", "::1", 5432)
}
func TestParseDSNConnectionString(t *testing.T) {
for _, k := range []string{"PGDATABASE", "PGUSER", "PGHOST", "PGPORT"} {
unpatch := patchEnv(k, "")
defer unpatch()
}
info := apmpq.ParseDSN("dbname=foo\\ bar user='baz'")
assert.Equal(t, apmsql.DSNInfo{
Address: "localhost",
Port: 5432,
Database: "foo bar",
User: "baz",
}, info)
}
func TestParseDSNEnv(t *testing.T) {
for _, kv := range [][]string{
{"PGDATABASE", "dbinst"}, {"PGUSER", "bob"}, {"PGHOST", "postgres"}, {"PGPORT", "2345"},
} {
unpatch := patchEnv(kv[0], kv[1])
defer unpatch()
}
info := apmpq.ParseDSN("postgres://")
assert.Equal(t, apmsql.DSNInfo{
Address: "postgres",
Port: 2345,
Database: "dbinst",
User: "bob",
}, info)
}