Change Result#each to return an Enumerator when called without a block.

As with #10992, this lets us call #with_index, etc on the results.

1 files changed, 33 insertions, 0 deletions

diff --git a/activerecord/test/cases/result_test.rb b/activerecord/test/cases/result_test.rb
new file mode 100644
index 0000000000..c305d273fb
--- /dev/null
+++ b/activerecord/test/cases/result_test.rb
@@ -0,0 +1,33 @@
+require "cases/helper"
+
+module ActiveRecord
+  class ResultTest < ActiveRecord::TestCase
+
+    def result
+      Result.new(['col_1', 'col_2'], [
+        ['row 1 col 1', 'row 1 col 2'],
+        ['row 2 col 1', 'row 2 col 2']
+      ])
+    end
+
+    def test_to_hash_returns_row_hashes
+      assert_equal [
+        {'col_1' => 'row 1 col 1', 'col_2' => 'row 1 col 2'},
+        {'col_1' => 'row 2 col 1', 'col_2' => 'row 2 col 2'}
+      ], result.to_hash
+    end
+
+    def test_each_with_block_returns_row_hashes
+      result.each do |row|
+        assert_equal ['col_1', 'col_2'], row.keys
+      end
+    end
+
+    def test_each_without_block_returns_an_enumerator
+      result.each.with_index do |row, index|
+        assert_equal ['col_1', 'col_2'], row.keys
+        assert_kind_of Integer, index
+      end
+    end
+  end
+end