rpsoracle_test.gno

 1package rpsoracle
 2
 3import (
 4	"testing"
 5
 6	"gno.land/p/nt/avl/v0"
 7	"gno.land/p/nt/testutils/v0"
 8)
 9
10func resetState() {
11	players = avl.Tree{}
12	nonce = 0
13	totalRounds = 0
14	oracleCorrect = 0
15	var zero address
16	topOutwitter = zero
17	topOutwitterWins = 0
18}
19
20func TestJudge(t *testing.T) {
21	cases := []struct {
22		p, h Move
23		want int
24	}{
25		{Rock, Rock, 0},
26		{Paper, Paper, 0},
27		{Scissors, Scissors, 0},
28		{Paper, Rock, 1},
29		{Scissors, Paper, 1},
30		{Rock, Scissors, 1},
31		{Rock, Paper, 2},
32		{Paper, Scissors, 2},
33		{Scissors, Rock, 2},
34	}
35	for _, c := range cases {
36		if got := judge(c.p, c.h); got != c.want {
37			t.Fatalf("judge(%v,%v) = %d, want %d", c.p, c.h, got, c.want)
38		}
39	}
40}
41
42func TestBeats(t *testing.T) {
43	if beats(Rock) != Paper {
44		t.Fatal("beats(Rock) should be Paper")
45	}
46	if beats(Paper) != Scissors {
47		t.Fatal("beats(Paper) should be Scissors")
48	}
49	if beats(Scissors) != Rock {
50		t.Fatal("beats(Scissors) should be Rock")
51	}
52}
53
54func TestParseMove(t *testing.T) {
55	for _, s := range []string{"rock", "Rock", " r ", "paper", "P", "scissors", "S"} {
56		if _, ok := parseMove(s); !ok {
57			t.Fatalf("parseMove(%q) should be valid", s)
58		}
59	}
60	if _, ok := parseMove("lizard"); ok {
61		t.Fatal("parseMove(\"lizard\") should be invalid")
62	}
63}
64
65func TestPredictPicksMostFrequent(t *testing.T) {
66	ps := &playerState{}
67	ps.Counts[Paper] = 5
68	ps.Counts[Rock] = 1
69	if got := predict(ps, 0); got != Paper {
70		t.Fatalf("predict = %v, want Paper", got)
71	}
72}
73
74// Crossing: Play mutates realm state, so the test needs `cur realm`.
75func TestOracleCountersPredictableRock(cur realm, t *testing.T) {
76	resetState()
77	alice := testutils.TestAddress("alice")
78	testing.SetRealm(testing.NewUserRealm(alice))
79
80	for i := 0; i < 5; i++ {
81		Play(cross(cur), "rock")
82	}
83	ps := getOrCreate(alice)
84	if ps.Losses == 0 {
85		t.Fatal("expected the oracle to eventually counter an all-rock player")
86	}
87	if ps.Rounds != 5 {
88		t.Fatalf("Rounds = %d, want 5", ps.Rounds)
89	}
90}
91
92// Non-crossing: Render is a plain read.
93func TestRenderHome(t *testing.T) {
94	resetState()
95	out := Render("")
96	if out == "" {
97		t.Fatal("Render(\"\") should not be empty")
98	}
99}