chore: update 006-grc20

Signed-off-by: Manfred Touron <[email protected]>

006-grc20/Makefile

@@ -1,10 +1,4 @@
 -include ../single.mk
 
-# ''gnodev build' does not work yet w/ this demo.
 build:
 	@exit 0
-
-# install gno.land/p/dom if not yet existing
-publish: publish-dom publish-default
-publish-dom:
-	$(call publish_pkg,gno.land/p/dom,"${GNO_ROOT}/examples/gno.land/p/dom")

006-grc20/README.md

@@ -1,16 +1,31 @@
-# [r/moul_basics_import_v1](https://test2.gno.land/r/moul_basics_import_v1)
+# [r/moul_basics_grc20_v1](https://test2.gno.land/r/moul_basics_grc20_v1)
 _`README.md` generated by "make integration"._
 
 ## Examples
 
 ```console
 foo@bar:~$ gnokey maketx call "MYWALLET" --gas-fee "1ugnot"  \
 > --broadcast "true" --chainid "test2" --remote "test2.gno.land:36657"  \
-> --gas-wanted "500000" --pkgpath gno.land/r/moul_basics_import_v1  \
-> --func Render --args 
+> --gas-wanted "500000" --pkgpath gno.land/r/moul_basics_grc20_v1  \
+> --func MyBalance
+(100000000 uint64)
+OK!
+GAS WANTED: 500000
+GAS USED:   289953
 ```
 
 ## `gnodev test`
 
 ```console
 foo@bar:~$ gnodev test . --verbose
+=== RUN   Test
+--- PASS: Test (0.00s)
+ok      ./. 	3.07s
+```
+
+## How to publish locally
+
+```sh
+gnokey maketx addpkg "MYWALLET" --deposit "1ugnot" --gas-fee "1ugnot" --gas-wanted "5000000" --broadcast "true" --remote "localhost:26657" --chainid "dev" --pkgpath "gno.land/r/moul_basics_grc20_v1" --pkgdir "."
+```
+

006-grc20/contract.gno

@@ -1,13 +1,29 @@
 package demo
 
 import (
-	"gno.land/p/avl"
-	"gno.land/p/dom"
+	"std"
+
+	"gno.land/p/grc/grc20"
 )
 
-func Render(path string) string {
-	thread := dom.Plot{Name: "Hello!"}
-	thread.AddPost("Foo", "foo foo foo")
-	thread.AddPost("Bar", "bar bar bar")
-	return thread.String()
+// FooToken is exported. Other contracts can interact with it.
+var FooToken grc20.IGRC20
+
+func init() {
+	// generate minter and mint some tokens to test1.
+	const test1 = std.Address("g1jg8mtutu9khhfwc4nxmuhcpftf0pajdhfvsqf5")
+	minter := grc20.NewAdminToken("Foo Token", "FOO", 4)
+	minter.Mint(test1, 100000000)
+
+	// publicly expose an unprivileged implementation of IGRC20.
+	FooToken = minter.GRC20()
+}
+
+func MyBalance() uint64 {
+	caller := std.GetOrigCaller()
+	balance, err := FooToken.BalanceOf(caller)
+	if err != nil {
+		panic(err)
+	}
+	return balance
 }

006-grc20/contract_test.gno

@@ -1,21 +1,54 @@
 package demo
 
 import (
+	"std"
 	"strings"
 	"testing"
+
+	"gno.land/p/testutils"
 )
 
 func Test(t *testing.T) {
-	got := Render("")
-	expected := `
-# [plot] Hello!
-
-## Foo
-foo foo foo
-## Bar
-bar bar bar
-`
-	if strings.TrimSpace(got) != strings.TrimSpace(expected) {
-		t.Fatalf("expected %q, got %q.", expected, got)
+	test1 := std.Address("g1jg8mtutu9khhfwc4nxmuhcpftf0pajdhfvsqf5")
+	test2 := testutils.TestAddress("test2")
+	std.TestSetOrigCaller(test1)
+
+	// check token metadata.
+	{
+		got := FooToken.GetName()
+		expected := "Foo Token"
+		if strings.TrimSpace(got) != strings.TrimSpace(expected) {
+			t.Fatalf("expected %q, got %q.", expected, got)
+		}
+	}
+
+	// check balance of test1.
+	{
+		got, _ := FooToken.BalanceOf(test1)
+		expected := 100000000
+		if got != expected {
+			t.Fatalf("expected %d, got %d.", expected, got)
+		}
+	}
+
+	// transfer tokens to test2.
+	_ = FooToken.Transfer(test2, 1000)
+
+	// check balance of test1.
+	{
+		got, _ := FooToken.BalanceOf(test1)
+		expected := 99999000
+		if got != expected {
+			t.Fatalf("expected %d, got %d.", expected, got)
+		}
+	}
+
+	// check balance of test2.
+	{
+		got, _ := FooToken.BalanceOf(test2)
+		expected := 1000
+		if got != expected {
+			t.Fatalf("expected %d, got %d.", expected, got)
+		}
 	}
 }

006-grc20/integrations.sh

@@ -3,5 +3,6 @@
 . ../integrations.lib.sh
 
 pre
-call --pkgpath ${GNO_CONTRACT_ENDPOINT} --func "Render" --args ""
+#call --pkgpath ${GNO_CONTRACT_ENDPOINT} --func "FooToken.BalanceOf" --args "g1jg8mtutu9khhfwc4nxmuhcpftf0pajdhfvsqf5"
+call --pkgpath ${GNO_CONTRACT_ENDPOINT} --func "MyBalance"
 post

006-grc20/pkgpath.txt

@@ -1 +1 @@
-r/moul_basics_import_v1
+r/moul_basics_grc20_v1