Revert "tests predicates according to the boolean interpretation of their return value, not expecting specifically true or false"

Reason: there were some genuine tests for false when
reading values, going to revise those ones.

This reverts commit a539a5e3f3be68f027d3dfe43f88dc9f0642c743.

1 files changed, 6 insertions, 2 deletions

diff --git a/activesupport/lib/active_support/cache.rb b/activesupport/lib/active_support/cache.rb
index 2acc54bbfc..2bf24558a6 100644
--- a/activesupport/lib/active_support/cache.rb
+++ b/activesupport/lib/active_support/cache.rb
@@ -365,7 +365,7 @@ module ActiveSupport
         end
       end
 
-      # Deletes an entry in the cache. Returns true if an entry is deleted.
+      # Deletes an entry in the cache. Returns +true+ if an entry is deleted.
       #
       # Options are passed to the underlying cache implementation.
       def delete(name, options = nil)
@@ -382,7 +382,11 @@ module ActiveSupport
         options = merged_options(options)
         instrument(:exist?, name) do |payload|
           entry = read_entry(namespaced_key(name, options), options)
-          entry && !entry.expired?
+          if entry && !entry.expired?
+            true
+          else
+            false
+          end
         end
       end