apollo-smith@0.1.1

0.1.1 - 2022-04-01

Features

• Add parser-impl feature flag - bnjjj, pull/197
  parser-impl feature in apollo-smith is used to convert
  apollo-parser types to apollo-smith types. This is useful when you require
  the test-case generator to generate documents based on a given schema.

  ## Cargo.toml
  
  [dependencies]
  apollo-smith = { version = "0.1.1", features = ["parser-impl"] }

  use std::fs;
  
  use apollo_parser::Parser;
  use apollo_smith::{Document, DocumentBuilder};
  
  use libfuzzer_sys::arbitrary::{Result, Unstructured};
  
  /// This generate an arbitrary valid GraphQL operation
  pub fn generate_valid_operation(input: &[u8]) {
  
      let parser = Parser::new(&fs::read_to_string("supergraph.graphql").expect("cannot read file"));
  
      let tree = parser.parse();
      if !tree.errors().is_empty() {
          panic!("cannot parse the graphql file");
      }
  
      let mut u = Unstructured::new(input);
  
      // Convert `apollo_parser::Document` into `apollo_smith::Document`.
      let apollo_smith_doc = Document::from(tree.document());
  
      // Create a `DocumentBuilder` given an existing document to match a schema.
      let mut gql_doc = DocumentBuilder::with_document(&mut u, apollo_smith_doc)?;
      let operation_def = gql_doc.operation_definition()?.unwrap();
  
      Ok(operation_def.into())
  }

• Introduces semantic validations to the test-case generation - bnjjj, pull/197

  Semantic validations currently include:

  • Directives used in the document must already be defined
  • Directives must be unique in a given Directive Location
  • Default values must be of correct type
  • Input values must be of correct type
  • All type extensions are applied to an existing type
  • Field arguments in fragments and operation definitions must be defined on
    original type and must be of correct type