AssertDosFile parses the file and ensures that every line ending is formatted for DOS operating systems with a carriage return and line feed ("\r\n").

AssertModuleExists searches a list of modules and determines if the specified module exists.

AssertPackageImport searches a list of imports (typically from pkg.Package.Imports) for a package and asserts on its existence.

AssertUnixFile parses the file and ensures that every line ending is formatted for Unix/Linux operating systems with only line feed ("\n").

PackageInTransitiveGraph searches a map (typically from Graph.Deps.Transitive) for a package and returns it if it exists.