func TestJSONInputFrontend(t *testing.T) {
pipes := plumbing.New()
buf := new(bytes.Buffer)
go fakeInterpreter(pipes)
Write(pipes, buf)
if got := buf.String(); got != expectedJSON {
t.Error(
"Error generating output JSON file. Expected "+expectedJSON+" rows. Got:",
got,
)
}
}
func TestCsvInputFrontend(t *testing.T) {
pipes := plumbing.New()
buf := new(bytes.Buffer)
go fakeInterpreter(pipes)
Write(pipes, buf)
if got := buf.String(); got != expectedCsv {
t.Error(
"Error generating output CSV file. Expected Q1,A question,No rows. Got:",
got,
)
}
}
func TestJSONinputFrontend(t *testing.T) {
pipes := plumbing.New()
expectedAnswers := make(chan map[string]string)
fakeInterpreter(pipes, expectedAnswers)
go Read(pipes, strings.NewReader(fakeCsv))
got := <-expectedAnswers
rowcount := len(got)
if rowcount != 2 {
t.Error(
"Error parsing input JSON file. Expected 2 rows. Got:",
rowcount,
)
}
}
// New starts interpreter with an AST (*ast.Questionaire) and with
// channels to communicate with Frontend process.
func New(q *ast.QuestionaireNode) *plumbing.Pipes {
typecheck(q)
pipes := plumbing.New()
st := symboltable.New()
v := &interpreter{
questionaire: q,
send: pipes.ToFrontend(),
receive: pipes.FromFrontend(),
execute: execute.New(pipes.ToFrontend(), st),
draw: draw.New(pipes.ToFrontend()),
symbols: st,
}
go v.loop()
return pipes
}