text: /*
  Copyright (c) 2019 The Khronos Group Inc.
  Use of this source code is governed by an MIT-style license that can be
  found in the LICENSE.txt file.
  */
  
  // ArgGenerators contains argument generators for WebGL functions.
  // The argument generators are used for running random tests against the WebGL
  // functions.
  //
  // ArgGenerators is an object consisting of functionName : argGen -properties.
  //
  // functionName is a WebGL context function name and the argGen is an argument
  // generator object that encapsulates the requirements to run
  // randomly generated tests on the WebGL function.
  //
  // An argGen object has the following methods:
  //   - setup    -- set up state for testing the GL function, returns values
  //                 that need cleanup in teardown. Run once before entering a
  //                 test loop.
  //   - teardown -- do cleanup on setup's return values after testing is complete
  //   - generate -- generate a valid set of random arguments for the GL function
  //   - returnValueCleanup -- do cleanup on value returned by the tested GL function
  //   - cleanup  -- do cleanup on generated arguments from generate
  //   - checkArgValidity -- check if passed args are valid. Has a call signature
  //                         that matches generate's return value. Returns true
  //                         if args are valid, false if not.
  //
  //   Example test loop that demonstrates how the function args and return
  //   values flow together:
  //
  //   var setupArgs = argGen.setup();
  //   for (var i=0; i<numberOfTests; i++) {
  //     var generatedArgs = argGen.generate.apply(argGen, setupArgs);
  //     var validArgs = argGen.checkArgValidity.apply(argGen, generatedArgs);
  //     var rv = call the GL function with generatedArgs;
  //     argGen.returnValueCleanup(rv);
  //     argGen.cleanup.apply(argGen, generatedArgs);
  //   }
  //   argGen.teardown.apply(argGen, setupArgs);
  //
  ArgGenerators = {
  
  // GL functions in alphabetical order
  
  // B-3
  
    bufferData : {
      setup : function() {
        var buf = GL.createBuffer();
        var ebuf = GL.createBuffer();
        GL.bindBuffer(GL.ARRAY_BUFFER, buf);
        GL.bindBuffer(GL.ELEMENT_ARRAY_BUFFER, ebuf);
        return [buf, ebuf];
      },
      generate : function(buf, ebuf) {
        return [bufferTarget.random(), randomBufferData(), bufferMode.random()];
      },
      checkArgValidity : function(target, bufData, mode) {
        return bufferTarget.has(target) && isBufferData(bufData) && bufferMode.has(mode);
      },
      teardown : function(buf, ebuf) {
        GL.deleteBuffer(buf);
        GL.deleteBuffer(ebuf);
      },
    }
  
  };
  