Examples with ExpressionVerifier io.trino.sql.planner.assertions.ExpressionVerifier used on opensource projects

Example 1 with ExpressionVerifier

use of io.trino.sql.planner.assertions.ExpressionVerifier in project trino by trinodb.

the class TestDesugarTryExpressionRewriter method testTryExpressionDesugaringRewriter.

@Test
public void testTryExpressionDesugaringRewriter() {
    // 1 + try(2)
    Expression initial = new ArithmeticBinaryExpression(ADD, new DecimalLiteral("1"), new TryExpression(new DecimalLiteral("2")));
    Expression rewritten = DesugarTryExpressionRewriter.rewrite(initial, tester().getMetadata(), tester().getTypeAnalyzer(), tester().getSession(), new SymbolAllocator());
    // 1 + try_function(() -> 2)
    Expression expected = new ArithmeticBinaryExpression(ADD, new DecimalLiteral("1"), new TestingFunctionResolution().functionCallBuilder(QualifiedName.of(TryFunction.NAME)).addArgument(new FunctionType(ImmutableList.of(), createDecimalType(1)), new LambdaExpression(ImmutableList.of(), new DecimalLiteral("2"))).build());
    ExpressionVerifier verifier = new ExpressionVerifier(new SymbolAliases());
    assertTrue(verifier.process(rewritten, expected));
}