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// Summary: Unit tests for Hexai CLI helpers and run flow (input parsing, messages, streaming).
package hexaicli
import (
"bytes"
"context"
"strings"
"testing"
)
func TestReadInput_ArgsOnly(t *testing.T) {
restore, f := setStdin(t, "")
defer restore()
// Pass the same file reader used for os.Stdin (empty)
got, err := readInput(f, []string{"hello", "world"})
if err != nil {
t.Fatalf("unexpected error: %v", err)
}
want := "hello world"
if got != want {
t.Fatalf("want %q, got %q", want, got)
}
}
func TestReadInput_StdinOnly(t *testing.T) {
restore, f := setStdin(t, "payload")
defer restore()
got, err := readInput(f, nil)
if err != nil {
t.Fatalf("unexpected error: %v", err)
}
if got != "payload" {
t.Fatalf("want %q, got %q", "payload", got)
}
}
func TestReadInput_Combined(t *testing.T) {
restore, f := setStdin(t, "payload")
defer restore()
got, err := readInput(f, []string{"subject"})
if err != nil {
t.Fatalf("unexpected error: %v", err)
}
want := "subject:\n\npayload"
if got != want {
t.Fatalf("want %q, got %q", want, got)
}
}
func TestReadInput_EmptyError(t *testing.T) {
restore, f := setStdin(t, "")
defer restore()
_, err := readInput(f, nil)
if err == nil {
t.Fatalf("expected error, got nil")
}
if !strings.Contains(err.Error(), "no input") {
t.Fatalf("unexpected error: %v", err)
}
}
func TestBuildMessages_DefaultAndExplain(t *testing.T) {
// Default concise
msgs := buildMessages("list files in folder")
if len(msgs) != 2 {
t.Fatalf("expected 2 messages, got %d", len(msgs))
}
if msgs[0].Role != "system" || msgs[1].Role != "user" {
t.Fatalf("unexpected roles: %+v", msgs)
}
if !strings.Contains(msgs[0].Content, "very short, concise answers") {
t.Fatalf("unexpected system message: %q", msgs[0].Content)
}
if msgs[1].Content != "list files in folder" {
t.Fatalf("unexpected user content: %q", msgs[1].Content)
}
// Verbose explain
msgs2 := buildMessages("please explain how this works")
if len(msgs2) != 2 {
t.Fatalf("expected 2 messages, got %d", len(msgs2))
}
if !strings.Contains(strings.ToLower(msgs2[0].Content), "requested an explanation") {
t.Fatalf("unexpected system message: %q", msgs2[0].Content)
}
if msgs2[1].Content != "please explain how this works" {
t.Fatalf("unexpected user content: %q", msgs2[1].Content)
}
}
func TestRunChat_NonStreaming(t *testing.T) {
var out bytes.Buffer
var errb bytes.Buffer
fc := fakeClient{name: "fake", model: "m", resp: "OUTPUT"}
if err := runChat(context.Background(), &fc, nil, "input", &out, &errb); err != nil {
t.Fatalf("runChat error: %v", err)
}
if out.String() != "OUTPUT" {
t.Fatalf("stdout want %q, got %q", "OUTPUT", out.String())
}
es := errb.String()
if !strings.Contains(es, "done provider=fake model=m") {
t.Fatalf("stderr missing provider/model: %q", es)
}
if !strings.Contains(es, "in_bytes=5") || !strings.Contains(es, "out_bytes=6") {
t.Fatalf("stderr missing byte counts: %q", es)
}
}
func TestRunChat_Streaming(t *testing.T) {
var out bytes.Buffer
var errb bytes.Buffer
fs := fakeStreamer{fakeClient: fakeClient{name: "fake", model: "m"}, chunks: []string{"OUT", "PUT"}}
if err := runChat(context.Background(), &fs, nil, "input", &out, &errb); err != nil {
t.Fatalf("runChat error: %v", err)
}
if out.String() != "OUTPUT" {
t.Fatalf("stdout want %q, got %q", "OUTPUT", out.String())
}
es := errb.String()
if !strings.Contains(es, "done provider=fake model=m") {
t.Fatalf("stderr missing provider/model: %q", es)
}
if !strings.Contains(es, "in_bytes=5") || !strings.Contains(es, "out_bytes=6") {
t.Fatalf("stderr missing byte counts: %q", es)
}
}
func TestPrintProviderInfo(t *testing.T) {
var b bytes.Buffer
fc := fakeClient{name: "fake", model: "m"}
printProviderInfo(&b, &fc)
s := b.String()
if !strings.Contains(s, "provider=fake model=m") {
t.Fatalf("unexpected banner: %q", s)
}
}
func TestRunWithClient_NonStreaming(t *testing.T) {
restore, f := setStdin(t, "")
defer restore()
var out bytes.Buffer
var errb bytes.Buffer
fc := fakeClient{name: "fake", model: "m", resp: "OK"}
if err := RunWithClient(context.Background(), []string{"ask"}, f, &out, &errb, &fc); err != nil {
t.Fatalf("RunWithClient error: %v", err)
}
if out.String() != "OK" {
t.Fatalf("stdout want %q, got %q", "OK", out.String())
}
if !strings.Contains(errb.String(), "provider=fake model=m") {
t.Fatalf("missing banner: %q", errb.String())
}
}
func TestRunWithClient_Streaming(t *testing.T) {
restore, f := setStdin(t, "")
defer restore()
var out bytes.Buffer
var errb bytes.Buffer
fs := fakeStreamer{fakeClient: fakeClient{name: "fake", model: "m"}, chunks: []string{"A", "B"}}
if err := RunWithClient(context.Background(), []string{"ask"}, f, &out, &errb, &fs); err != nil {
t.Fatalf("RunWithClient error: %v", err)
}
if out.String() != "AB" {
t.Fatalf("stdout want %q, got %q", "AB", out.String())
}
if !strings.Contains(errb.String(), "provider=fake model=m") {
t.Fatalf("missing banner: %q", errb.String())
}
}
func TestRunWithClient_CombinedInput_UsesCombinedMessage(t *testing.T) {
restore, f := setStdin(t, "payload")
defer restore()
var out bytes.Buffer
var errb bytes.Buffer
fc := fakeClient{name: "fake", model: "m", resp: "OK"}
if err := RunWithClient(context.Background(), []string{"subject"}, f, &out, &errb, &fc); err != nil {
t.Fatalf("RunWithClient error: %v", err)
}
if out.String() != "OK" {
t.Fatalf("stdout want %q, got %q", "OK", out.String())
}
if len(fc.gotMsgs) != 2 {
t.Fatalf("expected 2 messages, got %d", len(fc.gotMsgs))
}
if fc.gotMsgs[1].Content != "subject:\n\npayload" {
t.Fatalf("unexpected user message: %q", fc.gotMsgs[1].Content)
}
}
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