svoid test_parseLineFromEmitVariables() {
  assertNullVerbose(parseLineFromEmitVariables("bla"));
  assertEqualsVerbose(litorderedmap(x := 1, y := "bla"),
    parseLineFromEmitVariables(getFirstStringEmit(r {
      emitVariables(x := 1, y := "bla")
    })));
}