| 1 | // SPDX-License-Identifier: GPL-3.0-or-later |
| 2 | |
| 3 | package sqlquery |
| 4 | |
| 5 | import ( |
| 6 | "context" |
| 7 | "errors" |
| 8 | "strings" |
| 9 | "testing" |
| 10 | |
| 11 | "github.com/DATA-DOG/go-sqlmock" |
| 12 | "github.com/stretchr/testify/assert" |
| 13 | "github.com/stretchr/testify/require" |
| 14 | ) |
| 15 | |
| 16 | func TestFetchTableColumns(t *testing.T) { |
| 17 | t.Run("without transform", func(t *testing.T) { |
| 18 | db, mock, err := sqlmock.New(sqlmock.QueryMatcherOption(sqlmock.QueryMatcherEqual)) |
| 19 | require.NoError(t, err) |
| 20 | defer func() { _ = db.Close() }() |
| 21 | |
| 22 | query, err := tableColumnsQuery(PlaceholderQuestion) |
| 23 | require.NoError(t, err) |
| 24 | mock.ExpectQuery(query). |
| 25 | WithArgs("performance_schema", "events_statements_summary_by_digest"). |
| 26 | WillReturnRows(sqlmock.NewRows([]string{"COLUMN_NAME"}). |
| 27 | AddRow("DIGEST"). |
| 28 | AddRow("COUNT_STAR")) |
| 29 | |
| 30 | cols, err := FetchTableColumns( |
| 31 | context.Background(), |
| 32 | db, |
| 33 | "performance_schema", |
| 34 | "events_statements_summary_by_digest", |
| 35 | PlaceholderQuestion, |
| 36 | nil, |
| 37 | ) |
| 38 | require.NoError(t, err) |
| 39 | assert.Equal(t, map[string]bool{ |
| 40 | "DIGEST": true, |
| 41 | "COUNT_STAR": true, |
| 42 | }, cols) |
| 43 | assert.NoError(t, mock.ExpectationsWereMet()) |
| 44 | }) |
| 45 | |
| 46 | t.Run("with transform", func(t *testing.T) { |
| 47 | db, mock, err := sqlmock.New(sqlmock.QueryMatcherOption(sqlmock.QueryMatcherEqual)) |
| 48 | require.NoError(t, err) |
| 49 | defer func() { _ = db.Close() }() |
| 50 | |
| 51 | query, err := tableColumnsQuery(PlaceholderQuestion) |
| 52 | require.NoError(t, err) |
| 53 | mock.ExpectQuery(query). |
| 54 | WithArgs("performance_schema", "events_statements_history_long"). |
| 55 | WillReturnRows(sqlmock.NewRows([]string{"COLUMN_NAME"}). |
| 56 | AddRow("digest"). |
| 57 | AddRow("mysql_errno")) |
| 58 | |
| 59 | cols, err := FetchTableColumns( |
| 60 | context.Background(), |
| 61 | db, |
| 62 | "performance_schema", |
| 63 | "events_statements_history_long", |
| 64 | PlaceholderQuestion, |
| 65 | strings.ToUpper, |
| 66 | ) |
| 67 | require.NoError(t, err) |
| 68 | assert.Equal(t, map[string]bool{ |
| 69 | "DIGEST": true, |
| 70 | "MYSQL_ERRNO": true, |
| 71 | }, cols) |
| 72 | assert.NoError(t, mock.ExpectationsWereMet()) |
| 73 | }) |
| 74 | |
| 75 | t.Run("query error", func(t *testing.T) { |
| 76 | db, mock, err := sqlmock.New(sqlmock.QueryMatcherOption(sqlmock.QueryMatcherEqual)) |
| 77 | require.NoError(t, err) |
| 78 | defer func() { _ = db.Close() }() |
| 79 | |
| 80 | query, err := tableColumnsQuery(PlaceholderQuestion) |
| 81 | require.NoError(t, err) |
| 82 | mock.ExpectQuery(query). |
| 83 | WithArgs("performance_schema", "events_statements_history"). |
| 84 | WillReturnError(errors.New("boom")) |
| 85 | |
| 86 | cols, err := FetchTableColumns( |
| 87 | context.Background(), |
| 88 | db, |
| 89 | "performance_schema", |
| 90 | "events_statements_history", |
| 91 | PlaceholderQuestion, |
| 92 | nil, |
| 93 | ) |
| 94 | require.Error(t, err) |
| 95 | assert.Nil(t, cols) |
| 96 | assert.NoError(t, mock.ExpectationsWereMet()) |
| 97 | }) |
| 98 | |
| 99 | t.Run("dollar placeholders", func(t *testing.T) { |
| 100 | db, mock, err := sqlmock.New(sqlmock.QueryMatcherOption(sqlmock.QueryMatcherEqual)) |
| 101 | require.NoError(t, err) |
| 102 | defer func() { _ = db.Close() }() |
| 103 | |
| 104 | query, err := tableColumnsQuery(PlaceholderDollar) |
| 105 | require.NoError(t, err) |
| 106 | mock.ExpectQuery(query). |
| 107 | WithArgs("public", "pg_stat_statements"). |
| 108 | WillReturnRows(sqlmock.NewRows([]string{"COLUMN_NAME"}). |
| 109 | AddRow("userid")) |
| 110 | |
| 111 | cols, err := FetchTableColumns( |
| 112 | context.Background(), |
| 113 | db, |
| 114 | "public", |
| 115 | "pg_stat_statements", |
| 116 | PlaceholderDollar, |
| 117 | nil, |
| 118 | ) |
| 119 | require.NoError(t, err) |
| 120 | assert.Equal(t, map[string]bool{"userid": true}, cols) |
| 121 | assert.NoError(t, mock.ExpectationsWereMet()) |
| 122 | }) |
| 123 | |
| 124 | t.Run("invalid style", func(t *testing.T) { |
| 125 | db, _, err := sqlmock.New(sqlmock.QueryMatcherOption(sqlmock.QueryMatcherEqual)) |
| 126 | require.NoError(t, err) |
| 127 | defer func() { _ = db.Close() }() |
| 128 | |
| 129 | cols, err := FetchTableColumns( |
| 130 | context.Background(), |
| 131 | db, |
| 132 | "public", |
| 133 | "pg_stat_statements", |
| 134 | PlaceholderStyle(100), |
| 135 | nil, |
| 136 | ) |
| 137 | require.Error(t, err) |
| 138 | assert.Nil(t, cols) |
| 139 | assert.Contains(t, err.Error(), "unsupported placeholder style") |
| 140 | }) |
| 141 | } |