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53 lines
2.4 KiB
Go
53 lines
2.4 KiB
Go
//go:build unit
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package utils_test
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import (
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"maps"
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"slices"
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"testing"
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"github.com/stretchr/testify/assert"
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"github.com/stretchr/testify/require"
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"github.com/pocket-id/pocket-id/backend/internal/utils"
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testutils "github.com/pocket-id/pocket-id/backend/internal/utils/testing"
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)
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// TestDBSchemaParity ensures the SQLite and Postgres migrations produce schemas that encode every column the same way in a data export
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// Without this, an export taken from one database provider fails to import into the other (see https://github.com/pocket-id/pocket-id/issues/1603 and https://github.com/pocket-id/pocket-id/issues/1815)
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// If this test fails after adding a migration, pick column types for both databases that map to the same utils.DBExportKind
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func TestDBSchemaParity(t *testing.T) {
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sqliteSchema, err := utils.LoadDBSchemaTypes(testutils.NewDatabaseForTest(t))
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require.NoError(t, err)
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postgresSchema, err := utils.LoadDBSchemaTypes(testutils.NewPostgresDatabaseForTest(t))
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require.NoError(t, err)
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// The migration bookkeeping table is managed by golang-migrate and never exported
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delete(sqliteSchema, "schema_migrations")
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delete(postgresSchema, "schema_migrations")
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// Both databases must have the same tables
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require.ElementsMatch(t, slices.Collect(maps.Keys(sqliteSchema)), slices.Collect(maps.Keys(postgresSchema)), "SQLite and Postgres must have the same tables")
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for table, sqliteColumns := range sqliteSchema {
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postgresColumns := postgresSchema[table]
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// Both databases must have the same columns in each table
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if !assert.ElementsMatchf(t, slices.Collect(maps.Keys(sqliteColumns)), slices.Collect(maps.Keys(postgresColumns)), "SQLite and Postgres must have the same columns in table %q", table) {
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continue
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}
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// Each column must be encoded the same way in an export and accept the same values
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for column, sqliteColumn := range sqliteColumns {
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postgresColumn := postgresColumns[column]
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assert.Equalf(t, sqliteColumn.ExportKind(), postgresColumn.ExportKind(),
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"column %s.%s is exported differently: SQLite type %q is %q, Postgres type %q is %q",
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table, column, sqliteColumn.Name, sqliteColumn.ExportKind(), postgresColumn.Name, postgresColumn.ExportKind())
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assert.Equalf(t, sqliteColumn.Nullable, postgresColumn.Nullable,
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"column %s.%s has a different nullability: SQLite nullable=%t, Postgres nullable=%t",
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table, column, sqliteColumn.Nullable, postgresColumn.Nullable)
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}
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}
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}
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