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-rw-r--r--spec/mspec/lib/mspec/utils/warnings.rb8
1 files changed, 7 insertions, 1 deletions
diff --git a/spec/mspec/lib/mspec/utils/warnings.rb b/spec/mspec/lib/mspec/utils/warnings.rb
index 01fca00b8d..1cd9153a37 100644
--- a/spec/mspec/lib/mspec/utils/warnings.rb
+++ b/spec/mspec/lib/mspec/utils/warnings.rb
@@ -1,6 +1,12 @@
require 'mspec/guards/version'
-if RUBY_ENGINE == "ruby"
+# Always enable deprecation warnings when running MSpec, as ruby/spec tests for them,
+# and like in most test frameworks, all warnings should be enabled by default (same as -w).
+if Object.const_defined?(:Warning) and Warning.respond_to?(:[]=)
+ Warning[:deprecated] = true
+end
+
+if Object.const_defined?(:Warning) and Warning.respond_to?(:warn)
def Warning.warn(message)
# Suppress any warning inside the method to prevent recursion
verbose = $VERBOSE