Function test_scalar_variable

datafusion/expr/src/expr_schema.rs:1196–1210

()

    #[test]
    fn test_scalar_variable() {
        let mut meta = HashMap::new();
        meta.insert("bar".to_string(), "buzz".to_string());
        let meta = FieldMetadata::from(meta);

        let field = Field::new("foo", DataType::Int32, true);
        let field = meta.add_to_field(field);
        let field = Arc::new(field);

        let expr = Expr::ScalarVariable(field, vec!["foo".to_string()]);

        let schema = MockExprSchema::new();

        assert_eq!(meta, expr.metadata(&schema).unwrap());
    }
}