jenkins decleralative pipeline - 覆盖率下降时构建失败

Question

using declerative pipeline syntax in a Jenkinsfile and publishing coverage report using cobertura as follows

cobertura(
  coberturaReportFile: 'coverage/cobertura-coverage.xml', 
  enableNewApi: true,
  autoUpdateHealth: true,
  autoUpdateStability: true,
  failUnstable: true,
  failUnhealthy: true,
  failNoReports: true,
  onlyStable: false
)

also tried using code coverage api as follows:

publishCoverage(
  failUnhealthy: true, 
  calculateDiffForChangeRequests: true,
  failBuildIfCoverageDecreasedInChangeRequest: true,
  failNoReports: true,
  adapters: [
    coberturaAdapter(path: 'coverage/cobertura-coverage.xml')
  ]
)

looking at all the documentation i could find, i wasn't able to figure out what are the instructions to fail the build if coverage drops without using hard-coded thresholds.

would appreciate a reference or a code snippet.

Answer 1

enabling autoUpdateHealth in conjunction with hard-coded threshold would do the trick

cobertura(
  coberturaReportFile: 'coverage/cobertura-coverage.xml', 
  enableNewApi: true,
  autoUpdateHealth: true,
  autoUpdateStability: true,
  failUnstable: true,
  failUnhealthy: true,
  failNoReports: true,
  onlyStable: false
  conditionalCoverageTargets: '80, 0, 0',
  fileCoverageTargets: '80, 0, 0',
  lineCoverageTargets: '80, 0, 0',
  methodCoverageTargets: '80, 0, 0',
  packageCoverageTargets: '80, 0, 0',
)

Answer 2

Here's the code we use to fail the build when coverage drops, key is setting failBuildIfCoverageDecreasedInChangeRequest and applyThresholdRecursively to true:

def coverage = ['applyThresholdRecursively':true, 'failBuildIfCoverageDecreasedInChangeRequest':true, /* ... etc. */]
coverage.globalThresholds = [[failUnhealthy: false, thresholdTarget: 'File', unhealthyThreshold: 1.0, unstableThreshold: 0.0]] //use your own values here
def coverageFilePath = 'path-to-your-coverage-file'

publishCoverage( 
 adapters: [coberturaAdapter(mergeToOneReport: true, path: coverageFilePath)],
 applyThresholdRecursively: coverage.applyThresholdRecursively, 
 failBuildIfCoverageDecreasedInChangeRequest: coverage.failBuildIfCoverageDecreasedInChangeRequest, 
 failNoReports: coverage.failNoReports,
 failUnhealthy: coverage.failUnhealthy,
 failUnstable: coverage.failUnstable,
 globalThresholds: coverage.globalThresholds 
)