| 1 | //go:build browser |
| 2 | |
| 3 | package harness |
| 4 | |
| 5 | import ( |
| 6 | "context" |
| 7 | "fmt" |
| 8 | "strings" |
| 9 | "time" |
| 10 | |
| 11 | "github.com/chromedp/chromedp" |
| 12 | ) |
| 13 | |
| 14 | // screenBudget bounds the wait for a screen to arrive. Wall-clock |
| 15 | // against a real browser: generous enough for a loaded CI box, and far |
| 16 | // faster than Go's default test timeout — a missing screen fails as |
| 17 | // itself, not as a hung suite (ui/browser_test.go's 60s reasoning, |
| 18 | // kept). |
| 19 | const screenBudget = 60 * time.Second |
| 20 | |
| 21 | // Screen is the gate a drive passes at every screen boundary: wait for |
| 22 | // selector, run the junk scan, then flush the problem list — any |
| 23 | // accumulated problem fails the test naming the screen it surfaced on. |
| 24 | // "body" is the whole-page case for rastrillo's server-rendered apps, |
| 25 | // which have no #app convention to hard-fail on. |
| 26 | func (r *Rig) Screen(selector, note string) { |
| 27 | r.t.Helper() |
| 28 | ctx, cancel := context.WithTimeout(r.ctx, screenBudget) |
| 29 | defer cancel() |
| 30 | if err := chromedp.Run(ctx, chromedp.WaitVisible(selector, chromedp.ByQuery)); err != nil { |
| 31 | r.fail(selector, note, fmt.Sprintf("screen %q never arrived: %v", selector, err)) |
| 32 | } |
| 33 | if hits := r.junkHits(selector); len(hits) > 0 { |
| 34 | r.fail(selector, note, "a JS value leaked to the screen:\n "+strings.Join(hits, "\n ")) |
| 35 | } |
| 36 | if probs := r.take(); len(probs) > 0 { |
| 37 | r.fail(selector, note, "the page reported problems:\n "+strings.Join(probs, "\n ")) |
| 38 | } |
| 39 | } |
| 40 | |
| 41 | // fail fails the test with what was on screen: a failure report always |
| 42 | // includes what a person would have seen. |
| 43 | func (r *Rig) fail(selector, note, msg string) { |
| 44 | r.t.Helper() |
| 45 | r.t.Fatalf("harness: %s: %s\non screen:\n%s", note, msg, r.onScreen(selector)) |
| 46 | } |
| 47 | |
amadan