Function TestPoolReuse

pkg/sql/ast/pool_test.go:205–249

Test pool reuse

(t *testing.T)

// Test pool reuse
func TestPoolReuse(t *testing.T) {
	t.Run("InsertStatement reuse", func(t *testing.T) {
		// Get first statement
		stmt1 := GetInsertStatement()
		stmt1.TableName = "test"

		// Return it
		PutInsertStatement(stmt1)

		// Get another statement - might be the same one
		stmt2 := GetInsertStatement()
		if stmt2 == nil {
			t.Fatal("GetInsertStatement() returned nil on reuse")
		}

		// Should be clean
		if stmt2.TableName != "" {
			t.Errorf("Reused statement not clean, TableName = %v", stmt2.TableName)
		}

		PutInsertStatement(stmt2)
	})

	t.Run("LiteralValue reuse", func(t *testing.T) {
		// Get first literal
		lit1 := GetLiteralValue()
		lit1.Value = "first"

		// Return it
		PutLiteralValue(lit1)

		// Get another literal - might be the same one
		lit2 := GetLiteralValue()
		if lit2 == nil {
			t.Fatal("GetLiteralValue() returned nil on reuse")
		}

		// Should be clean (Value is interface{}, so check for nil not empty string)
		if lit2.Value != nil {
			t.Errorf("Reused literal not clean, Value = %v", lit2.Value)
		}

		PutLiteralValue(lit2)
	})
}

// Memory leak detection tests for all pools
func TestMemoryLeaks_ASTPool(t *testing.T) {