90 lines
2.8 KiB
Go
90 lines
2.8 KiB
Go
package internal
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import (
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"context"
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"github.com/influxdata/influxdb/models"
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"github.com/influxdata/influxdb/tsdb"
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"github.com/influxdata/platform/storage/reads"
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"github.com/influxdata/platform/storage/reads/datatypes"
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"go.uber.org/zap"
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)
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// TSDBStoreMock is a mockable implementation of storage.Store.
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//
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// It's currently a partial implementation as one of a store's exported methods
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// returns an unexported type.
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type StorageStoreMock struct {
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ReadFn func(ctx context.Context, req *datatypes.ReadRequest) (reads.ResultSet, error)
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WithLoggerFn func(log *zap.Logger)
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ResultSet *StorageResultsMock
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// TODO(edd): can't mock GroupRead as it returns an unexported type.
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}
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// NewStorageStoreMock initialises a StorageStoreMock with methods that return
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// their zero values. It also initialises a StorageResultsMock, which can be
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// configured via the ResultSet field.
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func NewStorageStoreMock() *StorageStoreMock {
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store := &StorageStoreMock{
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WithLoggerFn: func(*zap.Logger) {},
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ResultSet: NewStorageResultsMock(),
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}
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store.ReadFn = func(context.Context, *datatypes.ReadRequest) (reads.ResultSet, error) {
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return store.ResultSet, nil
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}
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return store
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}
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// WithLogger sets the logger.
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func (s *StorageStoreMock) WithLogger(log *zap.Logger) {
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s.WithLoggerFn(log)
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}
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// Read reads the storage request and returns a cursor to access results.
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func (s *StorageStoreMock) Read(ctx context.Context, req *datatypes.ReadRequest) (reads.ResultSet, error) {
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return s.ReadFn(ctx, req)
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}
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// StorageResultsMock implements the storage.Results interface providing the
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// ability to emit mock results from calls to the StorageStoreMock.Read method.
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type StorageResultsMock struct {
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CloseFn func()
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NextFn func() bool
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CursorFn func() tsdb.Cursor
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TagsFn func() models.Tags
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ErrFn func() error
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StatsFn func() tsdb.CursorStats
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}
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// NewStorageResultsMock initialises a StorageResultsMock whose methods all return
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// their zero value.
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func NewStorageResultsMock() *StorageResultsMock {
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return &StorageResultsMock{
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CloseFn: func() {},
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NextFn: func() bool { return false },
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CursorFn: func() tsdb.Cursor { return nil },
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TagsFn: func() models.Tags { return nil },
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ErrFn: func() error { return nil },
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StatsFn: func() tsdb.CursorStats { return tsdb.CursorStats{} },
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}
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}
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func (r *StorageResultsMock) Err() error { return r.ErrFn() }
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func (r *StorageResultsMock) Stats() tsdb.CursorStats {
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return r.StatsFn()
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}
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// Close closes the result set.
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func (r *StorageResultsMock) Close() { r.CloseFn() }
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// Next returns true if there are more results available.
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func (r *StorageResultsMock) Next() bool { return r.NextFn() }
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// Cursor returns the cursor for the result set.
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func (r *StorageResultsMock) Cursor() tsdb.Cursor { return r.CursorFn() }
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// Tags returns the series' tag set.
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func (r *StorageResultsMock) Tags() models.Tags { return r.TagsFn() }
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