gno.land/p/moul/x/social/coin/v0⧉

1package coin23import (4	"strings"5	"testing"67	"gno.land/p/nt/seqid/v0"8	"gno.land/p/nt/testutils/v0"9	"gno.land/p/nt/uassert/v0"10	"gno.land/p/nt/urequire/v0"11)1213var fullPolicy = Policy{14	Mint:  "1 per distinct replier",15	Sink:  "burned to pin a thread",16	Buyer: "anyone who wants placement",17}1819// newTestCoin builds a Coin from a test. The same-realm cross promotes the20// test's EOA-origin cur into a code realm frame, which is what grc20.NewToken21// requires: it is the shape grc20's own tests use (vendor/.../token_test.gno).22func newTestCoin(t *testing.T, policy Policy, id seqid.ID, rlm realm) (c *Coin) {23	t.Helper()24	func(cur realm) {25		c = New("Test Points", "TEST", 0, id, policy, 0, cur)26	}(cross(rlm))27	return28}2930func TestPolicyValid(t *testing.T) {31	tests := []struct {32		name string33		p    Policy34		want bool35	}{36		{"complete", fullPolicy, true},37		{"no mint rule", Policy{Sink: "s", Buyer: "b"}, false},38		{"no sink", Policy{Mint: "m", Buyer: "b"}, false},39		{"no buyer", Policy{Mint: "m", Sink: "s"}, false},40		{"empty", Policy{}, false},41	}42	for _, tt := range tests {43		uassert.Equal(t, tt.want, tt.p.Valid(), tt.name)44	}45}4647// New's refusal is asserted with AbortsContains and not PanicsContains: the48// constructor runs behind a same-realm cross (the frame grc20.NewToken49// requires), and a panic raised across a crossing call is an abort that no50// recover() in the caller can catch.51func TestNewRefusesAnIncompletePolicy(cur realm, t *testing.T) {52	uassert.AbortsContains(t, cur, "mint rule, a sink and a buyer", func() {53		newTestCoin(t, Policy{Mint: "m", Sink: "s"}, 0, cur)54	})55}5657func TestEarnAndSpendMoveSupplyInOppositeDirections(cur realm, t *testing.T) {58	c := newTestCoin(t, fullPolicy, 1, cur)59	alice := testutils.TestAddress("alice")6061	c.Earn(alice, 10)62	uassert.Equal(t, int64(10), c.BalanceOf(alice))63	uassert.Equal(t, int64(10), c.Supply())6465	c.Spend(alice, 4)66	uassert.Equal(t, int64(6), c.BalanceOf(alice))67	uassert.Equal(t, int64(6), c.Supply())6869	// The flows stay visible after the fact, which the supply alone cannot70	// show: 6 in supply could be 6 earned and nothing burned.71	uassert.Equal(t, int64(10), c.Earned())72	uassert.Equal(t, int64(4), c.Spent())73}7475func TestEarnOfNothingIsANoOp(cur realm, t *testing.T) {76	c := newTestCoin(t, fullPolicy, 2, cur)77	alice := testutils.TestAddress("alice")7879	c.Earn(alice, 0)80	c.Earn(alice, -5)81	uassert.Equal(t, int64(0), c.Supply())82	uassert.Equal(t, int64(0), c.Earned())83	uassert.Equal(t, 0, c.Holders())84}8586func TestSpendNamesBothNumbersWhenShort(cur realm, t *testing.T) {87	c := newTestCoin(t, fullPolicy, 3, cur)88	alice := testutils.TestAddress("alice")89	c.Earn(alice, 2)9091	uassert.PanicsContains(t, cur, "balance 2 is short of 5", func() {92		c.Spend(alice, 5)93	})94	uassert.PanicsContains(t, cur, "must be positive", func() {95		c.Spend(alice, 0)96	})97	uassert.Equal(t, int64(2), c.BalanceOf(alice))98}99100func TestRenderCarriesTheThreeDeclarations(cur realm, t *testing.T) {101	c := newTestCoin(t, fullPolicy, 4, cur)102	c.Earn(testutils.TestAddress("alice"), 7)103	c.Spend(testutils.TestAddress("alice"), 3)104105	out := c.Render()106	for _, want := range []string{107		"Test Points",108		"TEST",109		fullPolicy.Mint,110		fullPolicy.Sink,111		fullPolicy.Buyer,112	} {113		uassert.True(t, strings.Contains(out, want), "render is missing "+want)114	}115	// 4 in supply, 7 earned, 3 burned, 1 holder.116	uassert.True(t, strings.Contains(out, "| 4 | 7 | 3 | 1 |"), "render is missing the flow row: "+out)117}118119func TestTokenIsAnOrdinaryGRC20(cur realm, t *testing.T) {120	c := newTestCoin(t, fullPolicy, 5, cur)121	alice := testutils.TestAddress("alice")122	c.Earn(alice, 3)123124	tok := c.Token()125	urequire.False(t, tok == nil, "token should not be nil")126	uassert.Equal(t, "TEST", tok.GetSymbol())127	uassert.Equal(t, int64(3), tok.TotalSupply())128	uassert.Equal(t, int64(3), tok.BalanceOf(alice))129}130