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Make unlink consistent with del when an empty keyset passed #1316

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Merged
merged 1 commit into from
Jul 17, 2025
Merged

Make unlink consistent with del when an empty keyset passed #1316

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3 changes: 3 additions & 0 deletions lib/redis/commands/keys.rb
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Original file line number Diff line number Diff line change
Expand Up @@ -261,6 +261,9 @@ def del(*keys)
# @param [String, Array<String>] keys
# @return [Integer] number of keys that were unlinked
def unlink(*keys)
keys.flatten!(1)
return 0 if keys.empty?

send_command([:unlink] + keys)
end

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17 changes: 15 additions & 2 deletions test/redis/commands_on_value_types_test.rb
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Expand Up @@ -49,6 +49,10 @@ def test_unlink

assert_equal ["bar", "baz", "foo"], r.keys("*").sort

assert_equal 0, r.unlink("")

assert_equal ["bar", "baz", "foo"], r.keys("*").sort

assert_equal 1, r.unlink("foo")

assert_equal ["bar", "baz"], r.keys("*").sort
Expand All @@ -62,15 +66,24 @@ def test_unlink_with_array_argument
r.set "foo", "s1"
r.set "bar", "s2"
r.set "baz", "s3"
r.set "bad", "s4"

assert_equal ["bar", "baz", "foo"], r.keys("*").sort
assert_equal ["bad", "bar", "baz", "foo"], r.keys("*").sort

assert_equal 0, r.unlink([])

assert_equal ["bad", "bar", "baz", "foo"], r.keys("*").sort

assert_equal 1, r.unlink(["foo"])

assert_equal ["bar", "baz"], r.keys("*").sort
assert_equal ["bad", "bar", "baz"], r.keys("*").sort

assert_equal 2, r.unlink(["bar", "baz"])

assert_equal ["bad"], r.keys("*").sort

assert_equal 1, r.unlink([["bad"]])

assert_equal [], r.keys("*").sort
end

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