Fix usage string for test-randomize-ordering-seed (#1182)
We changed the behavior to allow passing an explicit `0` and treating
that differently from omitting the argument in #1150
diff --git a/pkgs/test/test/runner/runner_test.dart b/pkgs/test/test/runner/runner_test.dart
index 79280e1..cba1c84 100644
--- a/pkgs/test/test/runner/runner_test.dart
+++ b/pkgs/test/test/runner/runner_test.dart
@@ -100,10 +100,10 @@
(defaults to on)
--no-retry Don't re-run tests that have retry set.
- --test-randomize-ordering-seed If positive, use this as a seed to randomize the execution
- of test cases (must be a 32bit unsigned integer).
+ --test-randomize-ordering-seed The seed to randomize the execution order of test cases.
+ Must be a 32bit unsigned integer or "random".
If "random", pick a random seed to use.
- If 0 or not set, do not randomize test case execution order.
+ If not passed, do not randomize test case execution order.
======== Output
-r, --reporter The runner used to print test results.
diff --git a/pkgs/test_core/lib/src/runner/configuration/args.dart b/pkgs/test_core/lib/src/runner/configuration/args.dart
index d4d8ab8..02e5384 100644
--- a/pkgs/test_core/lib/src/runner/configuration/args.dart
+++ b/pkgs/test_core/lib/src/runner/configuration/args.dart
@@ -108,10 +108,10 @@
defaultsTo: false,
negatable: false);
parser.addOption('test-randomize-ordering-seed',
- help: 'If positive, use this as a seed to randomize the execution\n'
- 'of test cases (must be a 32bit unsigned integer).\n'
+ help: 'The seed to randomize the execution order of test cases.\n'
+ 'Must be a 32bit unsigned integer or "random".\n'
'If "random", pick a random seed to use.\n'
- 'If 0 or not set, do not randomize test case execution order.\n');
+ 'If not passed, do not randomize test case execution order.');
var reporterDescriptions = <String, String>{};
for (var reporter in allReporters.keys) {
