test: refine assertions

* test/test_prime.rb (test_eratosthenes_works_fine_after_timeout):
  use assert_raise to check timeout.

* test/test_securerandom.rb: check if results are hexadecimal
  strings, and refine failure messages.

* test/test_tracer.rb (test_tracer_with_option_r_without_gems):
  use assert_equal to compare.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@51023 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 1 insertions, 3 deletions

diff --git a/test/test_prime.rb b/test/test_prime.rb
index f6440f861b..1788d71b64 100644
--- a/test/test_prime.rb
+++ b/test/test_prime.rb
@@ -179,10 +179,8 @@ class TestPrime < Test::Unit::TestCase
         return n
       end
 
-      begin
+      assert_raise(Timeout::Error) do
         Timeout.timeout(0.5) { Prime.each(7*37){} }
-        flunk("timeout expected")
-      rescue Timeout::Error
       end
     ensure
       class << sieve