diff --git a/examples/gno.land/r/nt/boards2/z_1_a_filetest.gno b/examples/gno.land/r/nt/boards2/z_1_a_filetest.gno
index 67b677cf667..d8ab2e8ae84 100644
--- a/examples/gno.land/r/nt/boards2/z_1_a_filetest.gno
+++ b/examples/gno.land/r/nt/boards2/z_1_a_filetest.gno
@@ -8,8 +8,9 @@ import (
 
 const (
 	owner = std.Address("g1jg8mtutu9khhfwc4nxmuhcpftf0pajdhfvsqf5") // @test1
-	admin = std.Address("g1us8428u2a5satrlxzagqqa5m6vmuze025anjlj") // @test2
-	bid   = boards2.BoardID(0)                                      // Operate on realm DAO members instead of individual boards
+	user  = std.Address("g1us8428u2a5satrlxzagqqa5m6vmuze025anjlj") // @test2
+	bid   = boards2.BoardID(0)                                      // Operate on realm DAO instead of individual boards
+	role  = boards2.RoleOwner
 )
 
 func init() {
@@ -17,9 +18,11 @@ func init() {
 }
 
 func main() {
-	boards2.InviteMember(bid, admin, boards2.RoleAdmin)
-	println("ok")
+	boards2.InviteMember(bid, user, role)
+
+	// Check that user is invited
+	println(boards2.HasMemberRole(bid, user, role))
 }
 
 // Output:
-// ok
+// true
diff --git a/examples/gno.land/r/nt/boards2/z_1_b_filetest.gno b/examples/gno.land/r/nt/boards2/z_1_b_filetest.gno
index 187f33f47b7..ba41b803f75 100644
--- a/examples/gno.land/r/nt/boards2/z_1_b_filetest.gno
+++ b/examples/gno.land/r/nt/boards2/z_1_b_filetest.gno
@@ -10,15 +10,15 @@ const (
 	owner = std.Address("g1jg8mtutu9khhfwc4nxmuhcpftf0pajdhfvsqf5") // @test1
 	admin = std.Address("g1us8428u2a5satrlxzagqqa5m6vmuze025anjlj") // @test2
 	user  = std.Address("g1w4ek2u33ta047h6lta047h6lta047h6ldvdwpn")
-	bid   = boards2.BoardID(0) // Operate on realm DAO members instead of individual boards
+	bid   = boards2.BoardID(0) // Operate on realm DAO instead of individual boards
 )
 
 func init() {
-	// Add an admin user
+	// Add an admin member
 	std.TestSetOrigCaller(owner)
 	boards2.InviteMember(bid, admin, boards2.RoleAdmin)
 
-	// Next call will be done by the admin user
+	// Next call will be done by the admin member
 	std.TestSetOrigCaller(admin)
 }
 
diff --git a/examples/gno.land/r/nt/boards2/z_1_c_filetest.gno b/examples/gno.land/r/nt/boards2/z_1_c_filetest.gno
index 01e140af9dd..6beaf0774a6 100644
--- a/examples/gno.land/r/nt/boards2/z_1_c_filetest.gno
+++ b/examples/gno.land/r/nt/boards2/z_1_c_filetest.gno
@@ -10,22 +10,25 @@ const (
 	owner = std.Address("g1jg8mtutu9khhfwc4nxmuhcpftf0pajdhfvsqf5") // @test1
 	admin = std.Address("g1us8428u2a5satrlxzagqqa5m6vmuze025anjlj") // @test2
 	user  = std.Address("g1w4ek2u33ta047h6lta047h6lta047h6ldvdwpn")
-	bid   = boards2.BoardID(0) // Operate on realm DAO members instead of individual boards
+	bid   = boards2.BoardID(0) // Operate on realm DAO instead of individual boards
+	role  = boards2.RoleAdmin
 )
 
 func init() {
-	// Add an admin user
+	// Add an admin member
 	std.TestSetOrigCaller(owner)
 	boards2.InviteMember(bid, admin, boards2.RoleAdmin)
 
-	// Next call will be done by the admin user
+	// Next call will be done by the admin member
 	std.TestSetOrigCaller(admin)
 }
 
 func main() {
-	boards2.InviteMember(bid, user, boards2.RoleAdmin)
-	println("ok")
+	boards2.InviteMember(bid, user, role)
+
+	// Check that user is invited
+	println(boards2.HasMemberRole(bid, user, role))
 }
 
 // Output:
-// ok
+// true
diff --git a/examples/gno.land/r/nt/boards2/z_1_d_filetest.gno b/examples/gno.land/r/nt/boards2/z_1_d_filetest.gno
new file mode 100644
index 00000000000..f2a30517286
--- /dev/null
+++ b/examples/gno.land/r/nt/boards2/z_1_d_filetest.gno
@@ -0,0 +1,23 @@
+package main
+
+import (
+	"std"
+
+	"gno.land/r/nt/boards2"
+)
+
+const (
+	owner = std.Address("g1jg8mtutu9khhfwc4nxmuhcpftf0pajdhfvsqf5") // @test1
+	user  = std.Address("g1us8428u2a5satrlxzagqqa5m6vmuze025anjlj") // @test2
+)
+
+func init() {
+	std.TestSetOrigCaller(owner)
+}
+
+func main() {
+	boards2.InviteMember(0, user, boards2.Role("foobar")) // Operate on realm DAO instead of individual boards
+}
+
+// Error:
+// invalid role: foobar
diff --git a/examples/gno.land/r/nt/boards2/z_1_e_filetest.gno b/examples/gno.land/r/nt/boards2/z_1_e_filetest.gno
new file mode 100644
index 00000000000..01e3caa1e87
--- /dev/null
+++ b/examples/gno.land/r/nt/boards2/z_1_e_filetest.gno
@@ -0,0 +1,32 @@
+package main
+
+import (
+	"std"
+
+	"gno.land/r/nt/boards2"
+)
+
+const (
+	owner = std.Address("g1jg8mtutu9khhfwc4nxmuhcpftf0pajdhfvsqf5") // @test1
+	user  = std.Address("g1us8428u2a5satrlxzagqqa5m6vmuze025anjlj") // @test2
+	role  = boards2.RoleOwner
+)
+
+var bid boards2.BoardID
+
+func init() {
+	std.TestSetOrigCaller(owner)
+	bid = boards2.CreateBoard("foo123") // Operate on board DAO members
+}
+
+func main() {
+	boards2.InviteMember(bid, user, role)
+
+	// Check that user is invited
+	println(boards2.HasMemberRole(0, user, role)) // Operate on realm DAO
+	println(boards2.HasMemberRole(bid, user, role))
+}
+
+// Output:
+// false
+// true
diff --git a/examples/gno.land/r/nt/boards2/z_1_f_filetest.gno b/examples/gno.land/r/nt/boards2/z_1_f_filetest.gno
new file mode 100644
index 00000000000..7e56d5ad64f
--- /dev/null
+++ b/examples/gno.land/r/nt/boards2/z_1_f_filetest.gno
@@ -0,0 +1,26 @@
+package main
+
+import (
+	"std"
+
+	"gno.land/r/nt/boards2"
+)
+
+const (
+	owner = std.Address("g1jg8mtutu9khhfwc4nxmuhcpftf0pajdhfvsqf5") // @test1
+	user  = std.Address("g1us8428u2a5satrlxzagqqa5m6vmuze025anjlj") // @test2
+	bid   = boards2.BoardID(0)                                      // Operate on realm DAO instead of individual boards
+	role  = boards2.RoleOwner
+)
+
+func init() {
+	std.TestSetOrigCaller(owner)
+	boards2.InviteMember(bid, user, role)
+}
+
+func main() {
+	boards2.InviteMember(bid, user, role)
+}
+
+// Error:
+// user already exists
diff --git a/examples/gno.land/r/nt/boards2/z_1_g_filetest.gno b/examples/gno.land/r/nt/boards2/z_1_g_filetest.gno
new file mode 100644
index 00000000000..e4fbd6f4d76
--- /dev/null
+++ b/examples/gno.land/r/nt/boards2/z_1_g_filetest.gno
@@ -0,0 +1,20 @@
+package main
+
+import (
+	"std"
+
+	"gno.land/r/nt/boards2"
+)
+
+const owner = std.Address("g1us8428u2a5satrlxzagqqa5m6vmuze025anjlj") // @test2
+
+func init() {
+	std.TestSetOrigCaller(owner)
+}
+
+func main() {
+	boards2.InviteMember(0, "g1w4ek2u33ta047h6lta047h6lta047h6ldvdwpn", boards2.RoleGuest)
+}
+
+// Error:
+// unauthorized