Split up the cache test suite so it's easier to understand and extend (#29404)

Split up the caching tests as prep for adding a new cache store. Slices
the mega test/caching_test.rb into behavior modules, concrete store
tests, and cross-cutting store tests.

Considering moving cache store behavior modules into lib/ so they may be
used for acceptance testing by third parties.

1 files changed, 28 insertions, 0 deletions

diff --git a/activesupport/test/cache/cache_entry_test.rb b/activesupport/test/cache/cache_entry_test.rb
new file mode 100644
index 0000000000..e446e39b10
--- /dev/null
+++ b/activesupport/test/cache/cache_entry_test.rb
@@ -0,0 +1,28 @@
+require "abstract_unit"
+require "active_support/cache"
+
+class CacheEntryTest < ActiveSupport::TestCase
+  def test_expired
+    entry = ActiveSupport::Cache::Entry.new("value")
+    assert !entry.expired?, "entry not expired"
+    entry = ActiveSupport::Cache::Entry.new("value", expires_in: 60)
+    assert !entry.expired?, "entry not expired"
+    Time.stub(:now, Time.now + 61) do
+      assert entry.expired?, "entry is expired"
+    end
+  end
+
+  def test_compress_values
+    value = "value" * 100
+    entry = ActiveSupport::Cache::Entry.new(value, compress: true, compress_threshold: 1)
+    assert_equal value, entry.value
+    assert(value.bytesize > entry.size, "value is compressed")
+  end
+
+  def test_non_compress_values
+    value = "value" * 100
+    entry = ActiveSupport::Cache::Entry.new(value)
+    assert_equal value, entry.value
+    assert_equal value.bytesize, entry.size
+  end
+end