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package database
import (
"fmt"
"reflect"
"testing"
"git.adyxax.org/adyxax/trains/pkg/model"
"github.com/DATA-DOG/go-sqlmock"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
)
func TestCountStops(t *testing.T) {
stops := []model.Stop{
model.Stop{Id: "id1", Name: "name1"},
model.Stop{Id: "id2", Name: "name2"},
}
// test db setup
db, err := InitDB("sqlite3", "file::memory:?_foreign_keys=on")
require.NoError(t, err)
// check sql error
i, err := db.CountStops()
require.Error(t, err)
assert.Equalf(t, reflect.TypeOf(err), reflect.TypeOf(&QueryError{}), "Invalid error type. Got %s but expected %s", reflect.TypeOf(err), reflect.TypeOf(&QueryError{}))
// normal check
err = db.Migrate()
require.NoError(t, err)
err = db.ReplaceAndImportStops(stops)
i, err = db.CountStops()
require.NoError(t, err)
assert.Equal(t, i, len(stops))
}
func TestGetStop(t *testing.T) {
stops := []model.Stop{
model.Stop{Id: "id1", Name: "name1"},
model.Stop{Id: "id2", Name: "name2"},
}
// test db setup
db, err := InitDB("sqlite3", "file::memory:?_foreign_keys=on")
require.NoError(t, err)
err = db.Migrate()
require.NoError(t, err)
err = db.ReplaceAndImportStops(stops)
// normal check
stop, err := db.GetStop("id1")
require.NoError(t, err)
assert.Equal(t, stop, &stops[0])
// error check
stop, err = db.GetStop("non_existent")
require.Error(t, err)
assert.Equalf(t, reflect.TypeOf(err), reflect.TypeOf(&QueryError{}), "Invalid error type. Got %s but expected %s", reflect.TypeOf(err), reflect.TypeOf(&QueryError{}))
}
func TestGetStops(t *testing.T) {
stops := []model.Stop{
model.Stop{Id: "id1", Name: "name1"},
model.Stop{Id: "id2", Name: "name2"},
}
// test db setup
db, err := InitDB("sqlite3", "file::memory:?_foreign_keys=on")
require.NoError(t, err)
// error check
res, err := db.GetStops()
require.Error(t, err)
assert.Equalf(t, reflect.TypeOf(err), reflect.TypeOf(&QueryError{}), "Invalid error type. Got %s but expected %s", reflect.TypeOf(err), reflect.TypeOf(&QueryError{}))
// normal check
err = db.Migrate()
require.NoError(t, err)
err = db.ReplaceAndImportStops(stops)
res, err = db.GetStops()
require.NoError(t, err)
assert.Equal(t, res, stops)
}
func TestGetStopsWithSQLMock(t *testing.T) {
// Transaction commit error
dbScanError, mockScanError, err := sqlmock.New()
if err != nil {
t.Fatalf("an error '%s' was not expected when opening a stub database connection", err)
}
mockScanError.ExpectQuery(`SELECT id, name FROM stops;`).WillReturnRows(sqlmock.NewRows([]string{"id", "name"}).AddRow(nil, "b").RowError(1, fmt.Errorf("row error")))
// Test cases
testCases := []struct {
name string
db *DBEnv
expectedError interface{}
}{
{"query error when scanning row", &DBEnv{db: dbScanError}, &QueryError{}},
}
for _, tc := range testCases {
t.Run(tc.name, func(t *testing.T) {
_, err := tc.db.GetStops()
if tc.expectedError != nil {
require.Error(t, err)
assert.Equalf(t, reflect.TypeOf(err), reflect.TypeOf(tc.expectedError), "Invalid error type. Got %s but expected %s", reflect.TypeOf(err), reflect.TypeOf(tc.expectedError))
} else {
require.NoError(t, err)
}
})
}
}
func TestReplaceAndImportStops(t *testing.T) {
// test db setup
db, err := InitDB("sqlite3", "file::memory:?_foreign_keys=on")
require.NoError(t, err)
err = db.Migrate()
require.NoError(t, err)
// datasets
data1 := []model.Stop{
model.Stop{Id: "first", Name: "firstName"},
model.Stop{Id: "second", Name: "secondName"},
}
data2 := []model.Stop{
model.Stop{Id: "first", Name: "firstTest"},
model.Stop{Id: "secondTest", Name: "secondTest"},
model.Stop{Id: "thirdTest", Name: "thirdTest"},
}
testCases := []struct {
name string
input []model.Stop
expectedError interface{}
}{
{"Normal insert", data1, nil},
{"Normal insert overwrite", data2, nil},
}
for _, tc := range testCases {
t.Run(tc.name, func(t *testing.T) {
err := db.ReplaceAndImportStops(tc.input)
if tc.expectedError != nil {
require.Error(t, err)
assert.Equalf(t, reflect.TypeOf(err), reflect.TypeOf(tc.expectedError), "Invalid error type. Got %s but expected %s", reflect.TypeOf(err), reflect.TypeOf(tc.expectedError))
} else {
require.NoError(t, err)
}
})
}
}
func TestReplaceAndImportStopsWithSQLMock(t *testing.T) {
// datasets
data1 := []model.Stop{
model.Stop{Id: "first", Name: "firstName"},
model.Stop{Id: "second", Name: "secondName"},
}
// Transaction begin error
dbBeginError, _, err := sqlmock.New()
if err != nil {
t.Fatalf("an error '%s' was not expected when opening a stub database connection", err)
}
defer dbBeginError.Close()
// Query error cannot delete from
dbCannotDeleteFrom, mockCannotDeleteFrom, err := sqlmock.New()
if err != nil {
t.Fatalf("an error '%s' was not expected when opening a stub database connection", err)
}
defer dbCannotDeleteFrom.Close()
mockCannotDeleteFrom.ExpectBegin()
// Transaction commit error
dbCannotInsertError, mockCannotInsertError, err := sqlmock.New()
if err != nil {
t.Fatalf("an error '%s' was not expected when opening a stub database connection", err)
}
defer dbCannotInsertError.Close()
mockCannotInsertError.ExpectBegin()
mockCannotInsertError.ExpectExec(`DELETE FROM`).WillReturnResult(sqlmock.NewResult(1, 1))
// Transaction commit error
dbCommitError, mockCommitError, err := sqlmock.New()
if err != nil {
t.Fatalf("an error '%s' was not expected when opening a stub database connection", err)
}
defer dbCommitError.Close()
mockCommitError.ExpectBegin()
mockCommitError.ExpectExec(`DELETE FROM`).WillReturnResult(sqlmock.NewResult(1, 1))
mockCommitError.ExpectExec(`INSERT INTO`).WillReturnResult(sqlmock.NewResult(1, 1))
mockCommitError.ExpectExec(`INSERT INTO`).WillReturnResult(sqlmock.NewResult(1, 1))
// Test cases
testCases := []struct {
name string
db *DBEnv
expectedError interface{}
}{
{"begin transaction error", &DBEnv{db: dbBeginError}, &TransactionError{}},
{"query error cannot delete from", &DBEnv{db: dbCannotDeleteFrom}, &QueryError{}},
{"query error cannot insert into", &DBEnv{db: dbCannotInsertError}, &QueryError{}},
{"commit transaction error", &DBEnv{db: dbCommitError}, &TransactionError{}},
}
for _, tc := range testCases {
t.Run(tc.name, func(t *testing.T) {
err := tc.db.ReplaceAndImportStops(data1)
if tc.expectedError != nil {
require.Error(t, err)
assert.Equalf(t, reflect.TypeOf(err), reflect.TypeOf(tc.expectedError), "Invalid error type. Got %s but expected %s", reflect.TypeOf(err), reflect.TypeOf(tc.expectedError))
} else {
require.NoError(t, err)
}
})
}
}
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