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pj
8bb20c4721
Candidates takes the label source as an argument rather than storing it, which is what keeps the asymmetry structural: the seeded picker selects by index and never calls Candidates, so the mode cannot reach it. That asymmetry is load-bearing, because it makes the two seeded cells of the factorial a manipulation check with identical draw streams. The identifier ladder deliberately has no text rung. A fallback that reached for text would silently turn one arm back into the other. Claude-Session: https://claude.ai/code/session_01A5KmftdEJ49A9z5mF5ESrX
503 lines
20 KiB
Go
503 lines
20 KiB
Go
package verifier
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import (
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"strings"
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"testing"
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"github.com/priyanshujain/sanderling/internal/hierarchy"
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)
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// enumTreeJSON exercises every labeling path: a clickable wrapper whose own text
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// is empty but whose child Text reads "Add credit" (descendant borrowing), an
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// editable field labeled by its hint, a text-labeled button, a DISABLED button,
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// and a scrollable list (the only valid scroll origin).
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const enumTreeJSON = `{
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"attributes": {"bounds": "[0,0,1080,2400]"},
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"children": [
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{"attributes": {"resource-id": "AddCredit", "bounds": "[0,100,1080,200]"}, "clickable": true, "enabled": true, "children": [
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{"attributes": {"text": "Add credit", "bounds": "[0,100,540,200]"}, "children": []}
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]},
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{"attributes": {"resource-id": "Amount", "class": "EditText", "hintText": "Amount", "bounds": "[0,300,1080,400]"}, "enabled": true, "children": []},
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{"attributes": {"resource-id": "SignIn", "text": "Sign in", "bounds": "[0,450,1080,550]"}, "clickable": true, "enabled": true, "children": []},
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{"attributes": {"resource-id": "Off", "text": "Off", "bounds": "[0,600,1080,700]"}, "clickable": true, "enabled": false, "children": []},
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{"attributes": {"resource-id": "List", "scrollable": "true", "bounds": "[0,800,1080,2000]"}, "children": []}
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]
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}`
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// labelChannelTreeJSON pulls the two label channels apart: every identifier
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// differs from the text a user reads, one control has a class but no identifier,
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// one has neither, and one has an identifier but nothing readable at all.
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const labelChannelTreeJSON = `{
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"attributes": {"bounds": "[0,0,1080,2400]"},
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"children": [
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{"attributes": {"resource-id": "add_credit_button", "class": "android.widget.Button", "bounds": "[0,100,1080,200]"}, "clickable": true, "enabled": true, "children": [
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{"attributes": {"text": "Add credit", "bounds": "[0,100,540,200]"}, "children": []}
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]},
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{"attributes": {"class": "android.widget.CheckBox", "text": "Remember me", "bounds": "[0,250,1080,300]"}, "clickable": true, "enabled": true, "children": []},
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{"attributes": {"class": "android.widget.CheckBox", "text": "Stay signed in", "bounds": "[0,300,1080,350]"}, "clickable": true, "enabled": true, "children": []},
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{"attributes": {"text": "Sign in", "bounds": "[0,400,1080,450]"}, "clickable": true, "enabled": true, "children": []},
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{"attributes": {"resource-id": "amount_field", "class": "EditText", "hintText": "Amount", "bounds": "[0,500,1080,600]"}, "enabled": true, "children": []},
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{"attributes": {"resource-id": "silent_row", "bounds": "[0,650,1080,700]"}, "clickable": true, "enabled": true, "children": []}
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]
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}`
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// enumVerifier loads a spec whose actions root is the given plain-object graph
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// and stages the given tree, so Candidates walks a controlled action tree. The
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// spec is bundled with the goja runtime entry because the model arm reads the
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// picker's own builtin enumeration out of that bundle.
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func enumVerifier(t *testing.T, actionsJS, treeJSON string) *Verifier {
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t.Helper()
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v := newVerifier(t)
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loadActionSpec(t, v, "globalThis.actions = "+actionsJS+";")
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tree, err := hierarchy.Parse(treeJSON)
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if err != nil {
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t.Fatalf("parse tree: %v", err)
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}
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v.lastTree = tree
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return v
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}
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func findCandidate(candidates []ActionCandidate, description string) (ActionCandidate, bool) {
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for _, candidate := range candidates {
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if candidate.Description == description {
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return candidate, true
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}
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}
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return ActionCandidate{}, false
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}
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func hasCandidate(candidates []ActionCandidate, description string) bool {
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_, ok := findCandidate(candidates, description)
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return ok
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}
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func TestCandidatesLabelsControlsByVisibleText(t *testing.T) {
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v := enumVerifier(t, "{kind:'builtin', verb:'taps'}", enumTreeJSON)
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candidates := v.Candidates(LabelSourceVisibleText)
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// The empty-text clickable wrapper is labeled by its child Text, NOT its
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// resource-id.
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if !hasCandidate(candidates, `Tap "Add credit"`) {
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t.Errorf("want Tap \"Add credit\" (descendant text), got %v", descriptions(candidates))
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}
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// The plain text button is labeled by its own text.
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if !hasCandidate(candidates, `Tap "Sign in"`) {
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t.Errorf("want Tap \"Sign in\", got %v", descriptions(candidates))
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}
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// Descriptions are never the opaque resource-id.
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if hasCandidate(candidates, `Tap "AddCredit"`) {
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t.Error("labeled a control by its resource-id instead of visible text")
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}
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// Indices are dense and 1-based.
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for i, candidate := range candidates {
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if candidate.Index != i+1 {
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t.Errorf("candidate %d has Index %d, want %d", i, candidate.Index, i+1)
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}
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}
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}
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func TestCandidatesLabelsControlsByResourceIdentifier(t *testing.T) {
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candidates := enumVerifier(t, "{kind:'builtin', verb:'taps'}", labelChannelTreeJSON).
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Candidates(LabelSourceResourceID)
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if !hasCandidate(candidates, `Tap "add_credit_button"`) {
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t.Errorf("want the control named by its identifier, got %v", descriptions(candidates))
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}
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// Nothing a user could read may reach this channel, including through a
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// fallback rung: an arm that sees the text is the other arm.
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for _, readable := range []string{`Tap "Add credit"`, `Tap "Remember me"`, `Tap "Sign in"`} {
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if hasCandidate(candidates, readable) {
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t.Errorf("visible text leaked in as %s: %v", readable, descriptions(candidates))
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}
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}
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}
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func TestCandidatesIdentifierChannelFallsBackToClassThenBareControl(t *testing.T) {
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candidates := enumVerifier(t, "{kind:'builtin', verb:'taps'}", labelChannelTreeJSON).
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Candidates(LabelSourceResourceID)
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if !hasCandidate(candidates, `Tap "android.widget.CheckBox"`) {
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t.Errorf("a control with no identifier falls back to its class, got %v", descriptions(candidates))
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}
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if !hasCandidate(candidates, `Tap "control"`) {
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t.Errorf("a control with neither identifier nor class falls back to a bare word, got %v",
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descriptions(candidates))
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}
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}
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// TestCandidatesIdentifierChannelMergesControlsItCannotTellApart pins the cost
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// of the channel rather than a defect in it: dedup keys on the rendered line, so
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// two identifier-less controls of one class arrive as ONE numbered entry and the
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// model can only reach the first. The list the identifier arm picks from is
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// therefore shorter than the text arm's on the same screen.
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func TestCandidatesIdentifierChannelMergesControlsItCannotTellApart(t *testing.T) {
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text := enumVerifier(t, "{kind:'builtin', verb:'taps'}", labelChannelTreeJSON).
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Candidates(LabelSourceVisibleText)
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identifier := enumVerifier(t, "{kind:'builtin', verb:'taps'}", labelChannelTreeJSON).
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Candidates(LabelSourceResourceID)
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if count(text, `Tap "Remember me"`) != 1 || count(text, `Tap "Stay signed in"`) != 1 {
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t.Fatalf("the text channel should address both checkboxes, got %v", descriptions(text))
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}
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if got := count(identifier, `Tap "android.widget.CheckBox"`); got != 1 {
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t.Errorf("the two checkboxes should merge into one line, got %d: %v", got, descriptions(identifier))
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}
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if len(identifier) >= len(text) {
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t.Errorf("identifier list (%d) should be shorter than the text list (%d): %v vs %v",
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len(identifier), len(text), descriptions(identifier), descriptions(text))
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}
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}
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// TestCandidatesVisibleTextFallsBackToTheIdentifier is where the two channels
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// agree: a control carrying nothing readable is named by its identifier in both,
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// so a screen built entirely from such controls is one cell, not two.
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func TestCandidatesVisibleTextFallsBackToTheIdentifier(t *testing.T) {
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candidates := enumVerifier(t, "{kind:'builtin', verb:'taps'}", labelChannelTreeJSON).
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Candidates(LabelSourceVisibleText)
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if !hasCandidate(candidates, `Tap "silent_row"`) {
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t.Errorf("a control with no readable text falls back to its identifier, got %v",
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descriptions(candidates))
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}
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}
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func TestCandidatesTypingLabelFollowsTheLabelSource(t *testing.T) {
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text := enumVerifier(t, "{kind:'builtin', verb:'typing'}", labelChannelTreeJSON).
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Candidates(LabelSourceVisibleText)
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if !hasCandidate(text, `Type into "Amount" (number)`) {
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t.Errorf("want the field named by its hint, got %v", descriptions(text))
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}
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identifier := enumVerifier(t, "{kind:'builtin', verb:'typing'}", labelChannelTreeJSON).
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Candidates(LabelSourceResourceID)
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if !hasCandidate(identifier, `Type into "amount_field" (number)`) {
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t.Errorf("want the field named by its identifier, got %v", descriptions(identifier))
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}
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}
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// TestLabelSourceChangesOnlyTheDescription is the claim the factorial rests on:
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// the channel renames the target and does nothing else, so a difference in
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// defect yield cannot come from the two arms executing different actions.
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func TestLabelSourceChangesOnlyTheDescription(t *testing.T) {
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text := enumVerifier(t, "{kind:'builtin', verb:'taps'}", labelChannelTreeJSON).
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Candidates(LabelSourceVisibleText)
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identifier := enumVerifier(t, "{kind:'builtin', verb:'taps'}", labelChannelTreeJSON).
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Candidates(LabelSourceResourceID)
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readable, ok := findCandidate(text, `Tap "Add credit"`)
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if !ok {
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t.Fatalf("missing the text-labelled tap: %v", descriptions(text))
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}
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named, ok := findCandidate(identifier, `Tap "add_credit_button"`)
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if !ok {
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t.Fatalf("missing the identifier-labelled tap: %v", descriptions(identifier))
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}
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if readable.Action != named.Action {
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t.Errorf("same control, different action:\n text=%+v\n id=%+v", readable.Action, named.Action)
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}
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}
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func TestCandidatesDropsDisabledControls(t *testing.T) {
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v := enumVerifier(t, "{kind:'builtin', verb:'taps'}", enumTreeJSON)
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for _, candidate := range v.Candidates(LabelSourceVisibleText) {
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if strings.Contains(candidate.Description, "Off") {
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t.Errorf("disabled control surfaced as %q", candidate.Description)
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}
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}
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}
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func TestCandidatesTypingExposesInputType(t *testing.T) {
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v := enumVerifier(t, "{kind:'builtin', verb:'typing'}", enumTreeJSON)
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candidates := v.Candidates(LabelSourceVisibleText)
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candidate, ok := findCandidate(candidates, `Type into "Amount" (number)`)
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if !ok {
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t.Fatalf("want typing candidate with input type, got %v", descriptions(candidates))
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}
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if !candidate.LLMText {
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t.Error("builtin typing must flag LLMText so the model supplies the value")
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}
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if candidate.InputType != "number" {
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t.Errorf("InputType = %q, want number", candidate.InputType)
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}
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}
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func TestCandidatesLabelsEditableFieldByHintNotTypedValue(t *testing.T) {
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// A field already showing "99" must still be labeled by its purpose (the
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// hint), not by its transient content, so the description stays stable.
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tree := `{
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"attributes": {"bounds": "[0,0,400,800]"},
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"children": [
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{"attributes": {"resource-id": "Amt", "class": "EditText", "hintText": "Amount", "text": "99", "bounds": "[0,0,400,100]"}, "enabled": true, "children": []}
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]
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}`
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v := enumVerifier(t, "{kind:'builtin', verb:'typing'}", tree)
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candidates := v.Candidates(LabelSourceVisibleText)
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if hasCandidate(candidates, `Type into "99" (number)`) || hasCandidate(candidates, `Type into "99"`) {
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t.Errorf("editable field labeled by its typed value: %v", descriptions(candidates))
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}
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if !hasCandidate(candidates, `Type into "Amount" (number)`) {
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t.Errorf("want the field labeled by its hint, got %v", descriptions(candidates))
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}
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}
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func TestCandidatesKeepsGestureVerbsDistinct(t *testing.T) {
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v := enumVerifier(t,
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"{kind:'weighted', branches:[[1,{kind:'builtin',verb:'scrolls'}],[1,{kind:'builtin',verb:'swipes'}]]}",
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enumTreeJSON)
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candidates := v.Candidates(LabelSourceVisibleText)
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// `scrolls` folds to one directional pair over the single scrollable
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// container, which is what keeps the list short.
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if !hasCandidate(candidates, "Scroll down") || !hasCandidate(candidates, "Scroll up") {
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t.Errorf("want directional scrolls, got %v", descriptions(candidates))
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}
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if got := count(candidates, "Scroll down"); got != 1 {
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t.Errorf("Scroll down appears %d times, want 1 over the one container", got)
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}
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// `swipes` is a different verb, not a second name for the scroll: a
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// free-form drag from any element, named by the control it starts on. That
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// is what puts swipe-to-dismiss on a row within the model's reach.
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if !hasCandidatePrefix(candidates, `Swipe "Sign in"`) {
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t.Errorf("want a swipe naming the non-scrollable row, got %v", descriptions(candidates))
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}
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if hasCandidatePrefix(candidates, "Scroll \"") {
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t.Errorf("scroll candidates must stay container-scoped: %v", descriptions(candidates))
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}
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}
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func hasCandidatePrefix(candidates []ActionCandidate, prefix string) bool {
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for _, candidate := range candidates {
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if strings.HasPrefix(candidate.Description, prefix) {
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return true
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}
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}
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return false
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}
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func TestCandidatesWeightsCombineAcrossPaths(t *testing.T) {
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// A single clickable reached through two equal branches: its weight sums to
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// the full distribution.
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oneClickable := `{
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"attributes": {"bounds": "[0,0,400,800]"},
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"children": [
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{"attributes": {"resource-id": "SignIn", "text": "Sign in", "bounds": "[0,0,400,100]"}, "clickable": true, "enabled": true, "children": []}
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]
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}`
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v := enumVerifier(t,
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"{kind:'weighted', branches:[[1,{kind:'builtin',verb:'taps'}],[1,{kind:'builtin',verb:'taps'}]]}",
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oneClickable)
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candidates := v.Candidates(LabelSourceVisibleText)
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if len(candidates) != 1 {
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t.Fatalf("want one deduped candidate, got %v", descriptions(candidates))
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}
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candidate := candidates[0]
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if !candidate.Weighted {
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t.Fatal("candidate under a weighted tree must be Weighted")
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}
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if candidate.Weight != 100 {
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t.Errorf("summed weight = %d, want 100", candidate.Weight)
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}
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}
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func TestCandidatesWeightReflectsBranchShare(t *testing.T) {
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v := enumVerifier(t,
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"{kind:'weighted', branches:[[1,{kind:'builtin',verb:'taps'}],[3,{kind:'builtin',verb:'typing'}]]}",
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enumTreeJSON)
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candidates := v.Candidates(LabelSourceVisibleText)
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tap, ok := findCandidate(candidates, `Tap "Sign in"`)
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if !ok {
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t.Fatalf("missing tap candidate: %v", descriptions(candidates))
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}
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if tap.Weight != 25 {
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t.Errorf("tap weight = %d, want 25 (1/4 share)", tap.Weight)
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}
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typing, ok := findCandidate(candidates, `Type into "Amount" (number)`)
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if !ok {
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t.Fatalf("missing typing candidate: %v", descriptions(candidates))
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}
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if typing.Weight != 75 {
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t.Errorf("typing weight = %d, want 75 (3/4 share)", typing.Weight)
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}
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}
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func TestCandidatesUnweightedTreeShowsNoWeight(t *testing.T) {
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v := enumVerifier(t, "{kind:'builtin', verb:'taps'}", enumTreeJSON)
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for _, candidate := range v.Candidates(LabelSourceVisibleText) {
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if candidate.Weighted || candidate.Weight != 0 {
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t.Errorf("%q carries a weight despite no weighted node", candidate.Description)
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}
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}
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}
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func TestCandidatesCallsAuthoredLeafOnce(t *testing.T) {
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actions := `{kind:'actions', generate: () => [
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{kind:'Tap', on:'id:SignIn'},
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{kind:'Tap', on:'id:Off'},
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{kind:'InputText', into:'id:Amount', text:'42'}
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]}`
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v := enumVerifier(t, actions, enumTreeJSON)
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candidates := v.Candidates(LabelSourceVisibleText)
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// Authored Tap resolves its selector to the visible-text label.
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if !hasCandidate(candidates, `Tap "Sign in"`) {
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t.Errorf("authored tap missing: %v", descriptions(candidates))
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}
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// A disabled authored target is dropped.
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for _, candidate := range candidates {
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if strings.Contains(candidate.Description, "Off") {
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t.Errorf("authored action on disabled control surfaced: %q", candidate.Description)
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}
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}
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// Authored InputText replays its own sampled value (LLM does not supply it).
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authored, ok := findCandidate(candidates, `Type "42" into "Amount"`)
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if !ok {
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t.Fatalf("authored typing missing: %v", descriptions(candidates))
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}
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if authored.LLMText {
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t.Error("authored InputText must not request an LLM-supplied value")
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}
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if authored.Action.Text != "42" {
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t.Errorf("authored text = %q, want 42", authored.Action.Text)
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}
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}
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func TestCandidatesSurfaceAuthoredUntargetedActions(t *testing.T) {
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// A spec that authors a swipe, a key press, or a wait must reach the model
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// with all three: the seeded picker executes whatever the leaf returns, so a
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// kind the enumeration drops is an action only one policy can take.
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actions := `{kind:'actions', generate: () => [
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{kind:'Swipe', from:{x:10,y:600}, to:{x:10,y:100}, durationMillis: 250},
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{kind:'PressKey', key:'back'},
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{kind:'Wait'}
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]}`
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candidates := enumVerifier(t, actions, enumTreeJSON).Candidates(LabelSourceVisibleText)
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for _, want := range []string{"Swipe from (10,600) to (10,100)", "Press back", "Wait"} {
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if !hasCandidate(candidates, want) {
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t.Errorf("authored %q missing: %v", want, descriptions(candidates))
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}
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}
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}
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func TestCandidatesOffRouteLeafYieldsNothing(t *testing.T) {
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v := enumVerifier(t, "{kind:'actions', generate: () => []}", enumTreeJSON)
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if got := v.Candidates(LabelSourceVisibleText); len(got) != 0 {
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t.Errorf("off-route leaf should yield no candidates, got %v", descriptions(got))
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}
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}
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func TestCandidatesSkipsCrossFadeFrames(t *testing.T) {
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// Two route *Screen tags alive at once is a NavHost cross-fade: its layout is
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// mid-animation (collapsed coordinate space), so the LLM must NOT act on it.
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crossFade := `{
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"attributes": {"bounds": "[0,0,320,640]"},
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"children": [
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{"attributes": {"resource-id": "LedgerScreen", "bounds": "[0,0,320,640]"}, "children": [
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{"attributes": {"resource-id": "TxnSubmit", "text": "Add credit", "bounds": "[20,332,300,380]"}, "clickable": true, "enabled": true, "children": []}
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]},
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{"attributes": {"resource-id": "AddTransactionScreen", "bounds": "[0,0,320,640]"}, "children": []}
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]
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}`
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v := enumVerifier(t, "{kind:'builtin', verb:'taps'}", crossFade)
|
|
if got := v.Candidates(LabelSourceVisibleText); len(got) != 0 {
|
|
t.Errorf("cross-fade frame should yield no candidates, got %v", descriptions(got))
|
|
}
|
|
// The seeded policy is skipped by the SAME guard, in the shared producer,
|
|
// so neither arm acts on a mid-animation layout.
|
|
if got := v.targets(); len(got) != 0 {
|
|
t.Errorf("cross-fade frame should yield no host targets, got %d", len(got))
|
|
}
|
|
}
|
|
|
|
func TestCandidatesNilWithoutTreeOrActions(t *testing.T) {
|
|
withActions := newLoadedVerifier(t, "globalThis.actions = {kind:'builtin', verb:'taps'};")
|
|
if got := withActions.Candidates(LabelSourceVisibleText); got != nil {
|
|
t.Errorf("Candidates with no tree = %v, want nil", got)
|
|
}
|
|
noActions := newLoadedVerifier(t, "globalThis.properties = {};")
|
|
tree, _ := hierarchy.Parse(enumTreeJSON)
|
|
noActions.lastTree = tree
|
|
if got := noActions.Candidates(LabelSourceVisibleText); got != nil {
|
|
t.Errorf("Candidates with no actions root = %v, want nil", got)
|
|
}
|
|
}
|
|
|
|
func descriptions(candidates []ActionCandidate) []string {
|
|
out := make([]string, len(candidates))
|
|
for i, candidate := range candidates {
|
|
out[i] = candidate.Description
|
|
}
|
|
return out
|
|
}
|
|
|
|
func count(candidates []ActionCandidate, description string) int {
|
|
n := 0
|
|
for _, candidate := range candidates {
|
|
if candidate.Description == description {
|
|
n++
|
|
}
|
|
}
|
|
return n
|
|
}
|
|
|
|
func TestLLMConfigDetectsMarker(t *testing.T) {
|
|
v := newLoadedVerifier(t, `globalThis.generator = { kind: "llm", config: { model: "vendor/model" } };`)
|
|
config, ok := v.LLMConfig()
|
|
if !ok {
|
|
t.Fatal("LLMConfig not detected for llm marker")
|
|
}
|
|
if config.Model != "vendor/model" {
|
|
t.Errorf("model = %q, want vendor/model", config.Model)
|
|
}
|
|
if config.Instructions != "" {
|
|
t.Errorf("instructions = %q, want empty when unset", config.Instructions)
|
|
}
|
|
}
|
|
|
|
func TestLLMConfigReadsInstructions(t *testing.T) {
|
|
v := newLoadedVerifier(t, `globalThis.generator = { kind: "llm", config: { model: "m", instructions: "find bugs" } };`)
|
|
config, ok := v.LLMConfig()
|
|
if !ok {
|
|
t.Fatal("LLMConfig not detected")
|
|
}
|
|
if config.Instructions != "find bugs" {
|
|
t.Errorf("instructions = %q, want %q", config.Instructions, "find bugs")
|
|
}
|
|
}
|
|
|
|
func TestLLMConfigAbsentForSeededSpec(t *testing.T) {
|
|
v := newLoadedVerifier(t, `globalThis.actions = { kind: "builtin", verb: "taps" };`)
|
|
if _, ok := v.LLMConfig(); ok {
|
|
t.Error("LLMConfig should be false when no generator is declared")
|
|
}
|
|
}
|
|
|
|
func TestSampleInputErrorsWithoutBundle(t *testing.T) {
|
|
v := newLoadedVerifier(t, `globalThis.actions = { kind: "llm", config: { model: "m" } };`)
|
|
if _, err := v.SampleInput(); err == nil {
|
|
t.Error("expected SampleInput to error when the sampler is not installed")
|
|
}
|
|
}
|
|
|
|
func TestSampleInputDrawsFromCorpus(t *testing.T) {
|
|
v := newLoadedVerifier(t, `globalThis.__sanderlingSampleInput__ = () => "sampled";`)
|
|
got, err := v.SampleInput()
|
|
if err != nil {
|
|
t.Fatalf("SampleInput: %v", err)
|
|
}
|
|
if got != "sampled" {
|
|
t.Errorf("SampleInput = %q, want sampled", got)
|
|
}
|
|
}
|
|
|
|
func newLoadedVerifier(t *testing.T, source string) *Verifier {
|
|
t.Helper()
|
|
v, err := New()
|
|
if err != nil {
|
|
t.Fatalf("New: %v", err)
|
|
}
|
|
if err := v.Load(source); err != nil {
|
|
t.Fatalf("Load: %v", err)
|
|
}
|
|
return v
|
|
}
|