gno.land/r/moul/x/daily/asciiart/v1⧉

1package asciiart23import (4	"strings"5	"testing"67	"gno.land/p/moul/kit/store/v0"8	"gno.land/p/nt/testutils/v0"9)1011func resetState() {12	gallery = store.Named("piece")13}1415func TestRenderDiamond(t *testing.T) {16	got := RenderDiamond(3)17	want := "  *\n ***\n*****\n ***\n  *"18	if got != want {19		t.Fatalf("RenderDiamond(3) =\n%s\nwant\n%s", got, want)20	}21}2223func TestRenderPyramid(t *testing.T) {24	got := RenderPyramid(3)25	want := "  *\n ***\n*****"26	if got != want {27		t.Fatalf("RenderPyramid(3) =\n%s\nwant\n%s", got, want)28	}29}3031func TestRenderSierpinski(t *testing.T) {32	got := RenderSierpinski(4)33	want := "####\n# # \n##  \n#   "34	if got != want {35		t.Fatalf("RenderSierpinski(4) =\n%s\nwant\n%s", got, want)36	}37}3839func TestRenderSierpinskiRejectsNonPowerOfTwo(t *testing.T) {40	defer func() {41		if r := recover(); r == nil {42			t.Fatal("expected panic for a non-power-of-two size")43		}44	}()45	RenderSierpinski(5)46}4748func TestRenderChecker(t *testing.T) {49	got := RenderChecker(3)50	want := "#.#\n.#.\n#.#"51	if got != want {52		t.Fatalf("RenderChecker(3) =\n%s\nwant\n%s", got, want)53	}54}5556func TestRenderPatternUnknown(t *testing.T) {57	defer func() {58		if r := recover(); r == nil {59			t.Fatal("expected panic for an unknown pattern")60		}61	}()62	renderPattern("spiral", 3)63}6465// v1 asserted that its own padID() padded to width 6. That is the narrowest66// ceiling in this repo: padID(10^6) is 7 characters and sorts before67// padID(10^6-1), so from the millionth piece on the gallery would have68// rendered out of order. The store key is 8 bytes for every id.69func TestPadID(t *testing.T) {70	if a, b := store.ID(2).Key(), store.ID(10).Key(); !(a < b) {71		t.Error("id 2 should sort before id 10")72	}73	if a, b := store.ID(999999).Key(), store.ID(1000000).Key(); !(a < b) {74		t.Error("ordering should survive one past v1's width-6 ceiling")75	}76}7778// Crossing: Generate mutates realm state, so the test needs `cur realm`.79func TestGenerateAddsToGallery(cur realm, t *testing.T) {80	resetState()81	alice := testutils.TestAddress("alice")82	testing.SetRealm(testing.NewUserRealm(alice))8384	art := Generate(cross(cur), "checker", 3)85	if art != RenderChecker(3) {86		t.Fatal("Generate should return the rendered art")87	}88	if gallery.LastID() != 1 {89		t.Fatalf("LastID = %s, want 1", gallery.LastID())90	}9192	// The store's Get returns (value, ok), so a stored nil is distinguishable93	// from an absent id, which avl/v0's single-value Get cannot express.94	v, ok := gallery.Get(1)95	if !ok {96		t.Fatal("expected piece #1 to exist in the gallery")97	}98	p := v.(*piece)99	if p.Pattern != "checker" || p.Size != 3 || p.Author != alice {100		t.Fatalf("unexpected piece: %+v", p)101	}102}103104func TestGenerateRejectsOutOfRangeSize(cur realm, t *testing.T) {105	resetState()106	alice := testutils.TestAddress("alice")107	testing.SetRealm(testing.NewUserRealm(alice))108109	rec := revive(func() { Generate(cross(cur), "diamond", 0) })110	if rec == nil {111		t.Fatal("expected panic for size < 1")112	}113	rec = revive(func() { Generate(cross(cur), "diamond", maxSize+1) })114	if rec == nil {115		t.Fatal("expected panic for size > maxSize")116	}117}118119// Non-crossing: Render is a plain read.120func TestRenderHomeEmptyGallery(t *testing.T) {121	resetState()122	out := Render("")123	if !strings.Contains(out, "nothing generated yet") {124		t.Fatal(`Render("") on an empty gallery should say so`)125	}126}127128func TestRenderPieceNotFound(t *testing.T) {129	resetState()130	out := Render("99")131	if !strings.Contains(out, "No such piece") {132		t.Fatal(`Render("99") on a missing piece should say so`)133	}134}135