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-rw-r--r--activerecord/test/cases/adapters/sqlite3/explain_test.rb26
1 files changed, 26 insertions, 0 deletions
diff --git a/activerecord/test/cases/adapters/sqlite3/explain_test.rb b/activerecord/test/cases/adapters/sqlite3/explain_test.rb
new file mode 100644
index 0000000000..b227bce680
--- /dev/null
+++ b/activerecord/test/cases/adapters/sqlite3/explain_test.rb
@@ -0,0 +1,26 @@
+require "cases/helper"
+require 'models/developer'
+
+module ActiveRecord
+ module ConnectionAdapters
+ class SQLite3Adapter
+ class ExplainTest < ActiveRecord::TestCase
+ fixtures :developers
+
+ def test_explain_for_one_query
+ explain = Developer.where(:id => 1).explain
+ assert_match %(EXPLAIN for: SELECT "developers".* FROM "developers" WHERE "developers"."id" = 1), explain
+ assert_match(/(SEARCH )?TABLE developers USING (INTEGER )?PRIMARY KEY/, explain)
+ end
+
+ def test_explain_with_eager_loading
+ explain = Developer.where(:id => 1).includes(:audit_logs).explain
+ assert_match %(EXPLAIN for: SELECT "developers".* FROM "developers" WHERE "developers"."id" = 1), explain
+ assert_match(/(SEARCH )?TABLE developers USING (INTEGER )?PRIMARY KEY/, explain)
+ assert_match %(EXPLAIN for: SELECT "audit_logs".* FROM "audit_logs" WHERE "audit_logs"."developer_id" IN (1)), explain
+ assert_match(/(SCAN )?TABLE audit_logs/, explain)
+ end
+ end
+ end
+ end
+end