var assert          = require('assert');
var sinon           = require("sinon");
var testUtil        = require('testUtil/testUtil');
var FileReaderProxy = require('functions/IFileReaderProxy/FileReaderProxy');

describe('FileReader', ()=> {
    describe("when fetching file path that exist", ()=> {
        describe("Given a file name and encoding", () => {
            testUtil.dataProvider([["config.content", "utf8"]], (expectedPath,expectedEncoding)=> {
                it("should call the injected spy providing it with the parameters.", () => {
                    var spyCalledWithParameters;
                    const fileReaderSpy = sinon.spy();
                    const proxy         = FileReaderProxy(fileReaderSpy);

                    proxy(expectedPath, expectedEncoding);

                    spyCalledWithParameters = fileReaderSpy.calledWith(expectedPath, expectedEncoding);
                    assert(spyCalledWithParameters);
                });
            });
        });
    });
});