package api
import (
"context"
"fmt"
"os/exec"
"testing"
"craftdesign.group/quarry/internal/ops"
"craftdesign.group/quarry/internal/zitcli"
)
// A file's history reads to its first change a page at a time: each
// page names where the next begins, and no change is listed twice.
func TestAFilesHistoryPagesToItsFirstChange(t *testing.T) {
if _, err := exec.LookPath("zit"); err != nil {
t.Skip("zit not on PATH")
}
dir := t.TempDir()
zrun(t, dir, "init")
for i := 1; i <= 5; i++ {
zwrite(t, dir, "f", fmt.Sprintf("%d\n", i))
if i == 1 {
zrun(t, dir, "add", "f")
}
zrun(t, dir, "commit", "-m", fmt.Sprintf("c%d", i), "--user", "u")
zwrite(t, dir, "other", fmt.Sprintf("%d\n", i)) // check-ins that leave f alone
if i == 1 {
zrun(t, dir, "add", "other")
}
zrun(t, dir, "commit", "-m", fmt.Sprintf("o%d", i), "--user", "u")
}
r := ops.NewRegistry()
if err := RegisterAll(r, Deps{Version: "v", Repos: NewRepos(map[string]*Repo{"test": {Zit: zitcli.New(dir)}})}); err != nil {
t.Fatal(err)
}
ctx := context.Background()
var seen []string
version, pages := "trunk", 0
for version != "" && pages < 10 {
out, err := r.Invoke(ctx, "file.history", fileHistoryIn{Repo: "test", Version: version, Path: "f", Limit: 2})
if err != nil {
t.Fatal(err)
}
page := out.(fileHistoryOut)
for _, c := range page.Changes {
seen = append(seen, c.Hash)
}
version, pages = page.Next, pages+1
}
distinct := map[string]bool{}
for _, h := range seen {
distinct[h] = true
}
if len(seen) != 5 || len(distinct) != 5 || pages != 3 {
t.Errorf("FAIL: %d pages listed %d changes (%d distinct), want 3 pages of the 5", pages, len(seen), len(distinct))
} else {
t.Log("ok: three pages, five changes, none twice")
}
}