Documentation
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Overview ¶
Package lookup holds the connection seam used by transformers that read their values from the database when they are built. It exists as its own package because pkg/transformers/builder's table driven tests construct every registered transformer and have no database, and they cannot reach an unexported variable in pkg/transformers.
Index ¶
Constants ¶
This section is empty.
Variables ¶
var NewQuerier = func(ctx context.Context, url string) (pglib.Querier, error) { return pglib.NewConnPool(ctx, url) }
NewQuerier opens the connection a lookup load runs on. It is a variable so that tests can build lookup based transformers without a database; replace it with StubQuerier.
Functions ¶
func StubQuerier ¶
func StubQuerier(oid uint32, values []any, opts StubOptions) func(context.Context, string) (pglib.Querier, error)
StubQuerier returns a NewQuerier replacement serving the given values as a single column of the given pg type OID. It lives beside the seam so that every package testing a lookup based transformer shares one test double.
Types ¶
type StubOptions ¶
type StubOptions struct {
NewQuerierErr error
QueryErr error
ScanErr error
RowsErr error
// Closed reports whether the querier and its rows were closed
Closed *bool
// Query captures the SQL the loader built
Query *string
}
StubOptions configures the failure a StubQuerier injects. The zero value serves the values successfully.
Source Files