feat(jest): allow output of json report of jest tests

conveyal · Jul 2, 2019 · 0281213 · 0281213
1 parent 6dbb4c4
commit 0281213
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diff --git a/README.md b/README.md
@@ -214,6 +214,7 @@ Options:
   -u, --update-snapshots                  Force update of snapshots. USE WITH CAUTION.
   --coverage                              Run Jest with coverage reporting
   --coverage-paths <paths>                Extra paths to collect code coverage from
+  --json-output-file <path>               Export a json report of the tests to the path
   --no-cache                              Run Jest without cache (defaults to using cache)
   --run-in-band                           Run all tests serially in the current process
   --setup-files <paths>                   Setup files to run before each test

diff --git a/bin/mastarm-test b/bin/mastarm-test
@@ -26,6 +26,7 @@ commander
     'Extra paths to collect code coverage from'
   )
   .option('--force-exit', 'Force Jest to exit after all tests have completed running.')
+  .option('--json-output-file <path>', 'Output Jest test results to this file')
   .option('--no-cache', 'Run Jest without cache (defaults to using cache)')
   .option('--run-in-band', 'Run all tests serially in the current process')
   .option('--setup-files <paths>', 'Setup files to run before each test')

diff --git a/lib/jest.js b/lib/jest.js
@@ -58,6 +58,11 @@ module.exports.generateTestConfig = (patterns, options) => {
     jestArguments.push('--forceExit')
   }
 
+  if (options.jsonOutputFile) {
+    jestArguments.push('--json')
+    jestArguments.push(`--outputFile=${options.jsonOutputFile}`)
+  }
+
   if (options.updateSnapshots) {
     jestArguments.push('--updateSnapshot')
   }