/*
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.facebook.presto.sql.planner.assertions;

import com.facebook.presto.sql.planner.plan.JoinNode;

import static java.util.Objects.requireNonNull;

class EquiJoinClauseProvider
        implements ExpectedValueProvider<JoinNode.EquiJoinClause>
{
    private final SymbolAlias left;
    private final SymbolAlias right;

    EquiJoinClauseProvider(SymbolAlias left, SymbolAlias right)
    {
        this.left = requireNonNull(left, "left is null");
        this.right = requireNonNull(right, "right is null");
    }

    public JoinNode.EquiJoinClause getExpectedValue(SymbolAliases aliases)
    {
        return new JoinNode.EquiJoinClause(left.toSymbol(aliases), right.toSymbol(aliases));
    }
}

@@ -1258,11 +1258,201 @@
 );%0A    %7D
+%0A%0A    @Override%0A    public String toString()%0A    %7B%0A        return %22EquiJoinClauseProvider%7B%22 +%0A                %22left=%22 + left +%0A                %22, right=%22 + right +%0A                '%7D';%0A    %7D
 %0A%7D%0A

Add toString to EquiJoinClauseProvider