go.chromium.org/luci@v0.0.0-20240309015107-7cdc2e660f33/analysis/internal/changepoints/inputbuffer/test_util.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 inputbuffer
    16  
    17  import (
    18  	"time"
    19  )
    20  
    21  func Verdicts(positions, total, hasUnexpected []int) []PositionVerdict {
    22  	retried := make([]int, len(total))
    23  	unexpectedAfterRetry := make([]int, len(total))
    24  	return VerdictsWithRetries(positions, total, hasUnexpected, retried, unexpectedAfterRetry)
    25  }
    26  
    27  func VerdictsWithRetries(positions, total, hasUnexpected, retried, unexpectedAfterRetry []int) []PositionVerdict {
    28  	if len(total) != len(hasUnexpected) {
    29  		panic("length mismatch between total and hasUnexpected")
    30  	}
    31  	if len(total) != len(retried) {
    32  		panic("length mismatch between total and retried")
    33  	}
    34  	if len(total) != len(unexpectedAfterRetry) {
    35  		panic("length mismatch between total and unexpectedAfterRetry")
    36  	}
    37  	result := make([]PositionVerdict, 0, len(total))
    38  	for i := range total {
    39  		// From top to bottom, these are increasingly restrictive.
    40  		totalCount := total[i]                          // Total number of test runs in this verdict.
    41  		hasUnexpectedCount := hasUnexpected[i]          // How many of those test runs had at least one unexpected result.
    42  		retriedCount := retried[i]                      // As above, plus at least two results in total.
    43  		unexpectedAfterRetry := unexpectedAfterRetry[i] // As above, plus all test runs have only unexpected results.
    44  
    45  		verdict := PositionVerdict{
    46  			CommitPosition: positions[i],
    47  			Hour:           time.Unix(int64(3600*(positions[i])), 0),
    48  		}
    49  		if hasUnexpectedCount == 0 && totalCount == 1 {
    50  			verdict.IsSimpleExpectedPass = true
    51  		} else {
    52  			verdict.Details = VerdictDetails{
    53  				Runs: []Run{},
    54  			}
    55  			for i := 0; i < totalCount; i++ {
    56  				if i < unexpectedAfterRetry {
    57  					verdict.Details.Runs = append(verdict.Details.Runs, Run{
    58  						Unexpected: ResultCounts{
    59  							FailCount:  1,
    60  							CrashCount: 1,
    61  						},
    62  					})
    63  				} else if i < retriedCount {
    64  					verdict.Details.Runs = append(verdict.Details.Runs, Run{
    65  						Expected: ResultCounts{
    66  							PassCount: 1,
    67  						},
    68  						Unexpected: ResultCounts{
    69  							FailCount: 1,
    70  						},
    71  					})
    72  				} else if i < hasUnexpectedCount {
    73  					verdict.Details.Runs = append(verdict.Details.Runs, Run{
    74  						Unexpected: ResultCounts{
    75  							FailCount: 1,
    76  						},
    77  					})
    78  				} else {
    79  					verdict.Details.Runs = append(verdict.Details.Runs, Run{
    80  						Expected: ResultCounts{
    81  							PassCount: 1,
    82  						},
    83  					})
    84  				}
    85  			}
    86  		}
    87  		result = append(result, verdict)
    88  	}
    89  	return result
    90  }