go.chromium.org/luci@v0.0.0-20240309015107-7cdc2e660f33/analysis/internal/changepoints/testutil.go (about)

     1  // Copyright 2023 The LUCI Authors.
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //      http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  package changepoints
    16  
    17  import (
    18  	"context"
    19  
    20  	"cloud.google.com/go/spanner"
    21  
    22  	"go.chromium.org/luci/server/span"
    23  
    24  	"go.chromium.org/luci/analysis/internal/changepoints/inputbuffer"
    25  	"go.chromium.org/luci/analysis/internal/changepoints/testvariantbranch"
    26  )
    27  
    28  func FetchTestVariantBranches(ctx context.Context) ([]*testvariantbranch.Entry, error) {
    29  	st := spanner.NewStatement(`
    30  			SELECT
    31  				Project, TestId, VariantHash, RefHash, Variant, SourceRef,
    32  				HotInputBuffer, ColdInputBuffer, FinalizingSegment, FinalizedSegments, Statistics
    33  			FROM TestVariantBranch
    34  			ORDER BY TestId
    35  		`)
    36  	it := span.Query(span.Single(ctx), st)
    37  	results := []*testvariantbranch.Entry{}
    38  	var hs inputbuffer.HistorySerializer
    39  	err := it.Do(func(r *spanner.Row) error {
    40  		tvb := testvariantbranch.New()
    41  		err := tvb.PopulateFromSpannerRow(r, &hs)
    42  		if err != nil {
    43  			return err
    44  		}
    45  		results = append(results, tvb)
    46  		return nil
    47  	})
    48  	if err != nil {
    49  		return nil, err
    50  	}
    51  	return results, nil
    52  }