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Copy pathtable_schema_cache_test.go
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table_schema_cache_test.go
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package test
import (
"fmt"
"testing"
"github.com/Shopify/ghostferry"
"github.com/Shopify/ghostferry/testhelpers"
"github.com/stretchr/testify/suite"
sqlSchema "github.com/siddontang/go-mysql/schema"
)
type TableSchemaCacheTestSuite struct {
*testhelpers.GhostferryUnitTestSuite
tablenames []string
tableFilter *testhelpers.TestTableFilter
}
var ()
func (this *TableSchemaCacheTestSuite) SetupTest() {
this.GhostferryUnitTestSuite.SetupTest()
this.tablenames = []string{"test_table_1", "test_table_2", "test_table_3"}
for _, tablename := range this.tablenames {
testhelpers.SeedInitialData(this.Ferry.SourceDB, testhelpers.TestSchemaName, tablename, 0)
}
this.tableFilter = &testhelpers.TestTableFilter{
DbsFunc: testhelpers.DbApplicabilityFilter([]string{testhelpers.TestSchemaName}),
TablesFunc: nil,
}
}
func (this *TableSchemaCacheTestSuite) TearDownTest() {
this.GhostferryUnitTestSuite.TearDownTest()
}
func (this *TableSchemaCacheTestSuite) TestLoadTablesWithoutFiltering() {
tables, err := ghostferry.LoadTables(
this.Ferry.SourceDB,
this.tableFilter,
nil,
nil,
)
this.Require().Nil(err)
this.Require().Equal(len(this.tablenames), len(tables))
for _, tablename := range this.tablenames {
schema := tables[fmt.Sprintf("%s.%s", testhelpers.TestSchemaName, tablename)]
this.Require().Equal(testhelpers.TestSchemaName, schema.Schema)
this.Require().Equal(tablename, schema.Name)
this.Require().Equal(1, len(schema.PKColumns))
this.Require().Equal(0, schema.PKColumns[0])
expectedColumnNames := []string{"id", "data"}
expectedColumnTypes := []int{sqlSchema.TYPE_NUMBER, sqlSchema.TYPE_STRING}
for idx, column := range schema.Columns {
this.Require().Equal(expectedColumnNames[idx], column.Name)
this.Require().Equal(expectedColumnTypes[idx], column.Type)
}
}
}
func (this *TableSchemaCacheTestSuite) TestLoadTablesRejectTablesWithoutNumericPK() {
query := fmt.Sprintf("CREATE TABLE %s.%s (id varchar(20) not null, data TEXT, primary key(id))", testhelpers.TestSchemaName, "test_table_4")
_, err := this.Ferry.SourceDB.Exec(query)
this.Require().Nil(err)
_, err = ghostferry.LoadTables(this.Ferry.SourceDB, this.tableFilter, nil, nil)
this.Require().NotNil(err)
this.Require().Contains(err.Error(), "non-numeric primary key")
this.Require().Contains(err.Error(), "test_table_4")
}
func (this *TableSchemaCacheTestSuite) TestLoadTablesRejectTablesWithoutAnyPK() {
query := fmt.Sprintf("CREATE TABLE %s.%s (id bigint(20) not null, data TEXT)", testhelpers.TestSchemaName, "test_table_4")
_, err := this.Ferry.SourceDB.Exec(query)
this.Require().Nil(err)
_, err = ghostferry.LoadTables(this.Ferry.SourceDB, this.tableFilter, nil, nil)
this.Require().NotNil(err)
this.Require().Contains(err.Error(), "table test_table_4 has 0 primary key columns")
}
func (this *TableSchemaCacheTestSuite) TestAllTableNames() {
tables, err := ghostferry.LoadTables(this.Ferry.SourceDB, this.tableFilter, nil, nil)
this.Require().Nil(err)
tablesList := tables.AllTableNames()
for _, table := range this.tablenames {
this.Require().Contains(tablesList, fmt.Sprintf("%s.%s", testhelpers.TestSchemaName, table))
}
}
func (this *TableSchemaCacheTestSuite) TestAllTableNamesEmpty() {
tableFilter := &testhelpers.TestTableFilter{
DbsFunc: testhelpers.DbApplicabilityFilter([]string{testhelpers.TestSchemaName}),
TablesFunc: func(tables []*ghostferry.TableSchema) []*ghostferry.TableSchema { return []*ghostferry.TableSchema{} },
}
tables, err := ghostferry.LoadTables(this.Ferry.SourceDB, tableFilter, nil, nil)
this.Require().Nil(err)
this.Require().Equal(ghostferry.TableSchemaCache{}, tables)
this.Require().Equal(0, len(tables.AllTableNames()))
this.Require().Nil(tables.AllTableNames())
}
func (this *TableSchemaCacheTestSuite) TestAsSlice() {
tables, err := ghostferry.LoadTables(this.Ferry.SourceDB, this.tableFilter, nil, nil)
this.Require().Nil(err)
tablesSlice := tables.AsSlice()
this.Require().Equal(len(this.tablenames), len(tablesSlice))
for _, table := range tablesSlice {
this.Require().Contains(this.tablenames, table.Name)
}
}
func (this *TableSchemaCacheTestSuite) TestAsSliceEmpty() {
tableFilter := &testhelpers.TestTableFilter{
DbsFunc: testhelpers.DbApplicabilityFilter([]string{testhelpers.TestSchemaName}),
TablesFunc: func(tables []*ghostferry.TableSchema) []*ghostferry.TableSchema { return []*ghostferry.TableSchema{} },
}
tables, err := ghostferry.LoadTables(this.Ferry.SourceDB, tableFilter, nil, nil)
this.Require().Nil(err)
this.Require().Equal(ghostferry.TableSchemaCache{}, tables)
this.Require().Equal(0, len(tables.AsSlice()))
this.Require().Nil(tables.AsSlice())
}
func (this *TableSchemaCacheTestSuite) TestFingerprintQuery() {
tableSchemaCache, err := ghostferry.LoadTables(this.Ferry.SourceDB, this.tableFilter, nil, nil)
this.Require().Nil(err)
tables := tableSchemaCache.AsSlice()
table := tables[0]
query := table.FingerprintQuery("s", "t", 10)
this.Require().Equal("SELECT `id`,MD5(CONCAT(MD5(COALESCE(`id`, 'NULL_PBj}b]74P@JTo$5G_null')),MD5(COALESCE(`data`, 'NULL_PBj}b]74P@JTo$5G_null')))) AS __ghostferry_row_md5 FROM `s`.`t` WHERE `id` IN (?,?,?,?,?,?,?,?,?,?)", query)
table = tables[1]
table.CompressedColumnsForVerification = map[string]string{"data": "SNAPPY"}
query = table.FingerprintQuery("s", "t", 10)
this.Require().Equal("SELECT `id`,MD5(CONCAT(MD5(COALESCE(`id`, 'NULL_PBj}b]74P@JTo$5G_null')))) AS __ghostferry_row_md5,`data` FROM `s`.`t` WHERE `id` IN (?,?,?,?,?,?,?,?,?,?)", query)
}
func (this *TableSchemaCacheTestSuite) TestTableRowMd5Query() {
tableSchemaCache, err := ghostferry.LoadTables(this.Ferry.SourceDB, this.tableFilter, nil, nil)
this.Require().Nil(err)
tables := tableSchemaCache.AsSlice()
table := tables[0]
query := table.RowMd5Query()
this.Require().Equal("MD5(CONCAT(MD5(COALESCE(`id`, 'NULL_PBj}b]74P@JTo$5G_null')),MD5(COALESCE(`data`, 'NULL_PBj}b]74P@JTo$5G_null')))) AS __ghostferry_row_md5", query)
table = tables[1]
table.CompressedColumnsForVerification = map[string]string{"data": "SNAPPY"}
query = table.RowMd5Query()
this.Require().Equal("MD5(CONCAT(MD5(COALESCE(`id`, 'NULL_PBj}b]74P@JTo$5G_null')))) AS __ghostferry_row_md5", query)
}
func (this *TableSchemaCacheTestSuite) TestFingerprintQueryWithIgnoredColumns() {
tableSchemaCache, err := ghostferry.LoadTables(this.Ferry.SourceDB, this.tableFilter, nil, nil)
this.Require().Nil(err)
tables := tableSchemaCache.AsSlice()
table := tables[0]
table.IgnoredColumnsForVerification = map[string]struct{}{
"data": struct{}{},
}
query := table.FingerprintQuery("s", "t", 10)
this.Require().Equal("SELECT `id`,MD5(CONCAT(MD5(COALESCE(`id`, 'NULL_PBj}b]74P@JTo$5G_null')))) AS __ghostferry_row_md5 FROM `s`.`t` WHERE `id` IN (?,?,?,?,?,?,?,?,?,?)", query)
}
func (this *TableSchemaCacheTestSuite) TestQuotedTableName() {
table := &ghostferry.TableSchema{
Table: &sqlSchema.Table{
Schema: "schema",
Name: "table",
},
}
this.Require().Equal("`schema`.`table`", ghostferry.QuotedTableName(table))
}
func (this *TableSchemaCacheTestSuite) TestQuotedTableNameFromString() {
this.Require().Equal("``.`table`", ghostferry.QuotedTableNameFromString("", "table"))
this.Require().Equal("`schema`.`table`", ghostferry.QuotedTableNameFromString("schema", "table"))
this.Require().Equal("`schema`.``", ghostferry.QuotedTableNameFromString("schema", ""))
this.Require().Equal("``.``", ghostferry.QuotedTableNameFromString("", ""))
}
func TestTableSchemaCache(t *testing.T) {
testhelpers.SetupTest()
suite.Run(t, &TableSchemaCacheTestSuite{GhostferryUnitTestSuite: &testhelpers.GhostferryUnitTestSuite{}})
}