accounts/abi: argument type and name were reversed (#17947)

argument type and name were reversed

1 files changed, 37 insertions, 4 deletions

diff --git a/accounts/abi/event_test.go b/accounts/abi/event_test.go
index 3bfdd7c0a..e735cceb8 100644
--- a/accounts/abi/event_test.go
+++ b/accounts/abi/event_test.go
@@ -87,12 +87,12 @@ func TestEventId(t *testing.T) {
 	}{
 		{
 			definition: `[
-			{ "type" : "event", "name" : "balance", "inputs": [{ "name" : "in", "type": "uint256" }] },
-			{ "type" : "event", "name" : "check", "inputs": [{ "name" : "t", "type": "address" }, { "name": "b", "type": "uint256" }] }
+			{ "type" : "event", "name" : "Balance", "inputs": [{ "name" : "in", "type": "uint256" }] },
+			{ "type" : "event", "name" : "Check", "inputs": [{ "name" : "t", "type": "address" }, { "name": "b", "type": "uint256" }] }
 			]`,
 			expectations: map[string]common.Hash{
-				"balance": crypto.Keccak256Hash([]byte("balance(uint256)")),
-				"check":   crypto.Keccak256Hash([]byte("check(address,uint256)")),
+				"Balance": crypto.Keccak256Hash([]byte("Balance(uint256)")),
+				"Check":   crypto.Keccak256Hash([]byte("Check(address,uint256)")),
 			},
 		},
 	}
@@ -111,6 +111,39 @@ func TestEventId(t *testing.T) {
 	}
 }
 
+func TestEventString(t *testing.T) {
+	var table = []struct {
+		definition   string
+		expectations map[string]string
+	}{
+		{
+			definition: `[
+			{ "type" : "event", "name" : "Balance", "inputs": [{ "name" : "in", "type": "uint256" }] },
+			{ "type" : "event", "name" : "Check", "inputs": [{ "name" : "t", "type": "address" }, { "name": "b", "type": "uint256" }] },
+			{ "type" : "event", "name" : "Transfer", "inputs": [{ "name": "from", "type": "address", "indexed": true }, { "name": "to", "type": "address", "indexed": true }, { "name": "value", "type": "uint256" }] }
+			]`,
+			expectations: map[string]string{
+				"Balance":  "event Balance(uint256 in)",
+				"Check":    "event Check(address t, uint256 b)",
+				"Transfer": "event Transfer(address indexed from, address indexed to, uint256 value)",
+			},
+		},
+	}
+
+	for _, test := range table {
+		abi, err := JSON(strings.NewReader(test.definition))
+		if err != nil {
+			t.Fatal(err)
+		}
+
+		for name, event := range abi.Events {
+			if event.String() != test.expectations[name] {
+				t.Errorf("expected string to be %s, got %s", test.expectations[name], event.String())
+			}
+		}
+	}
+}
+
 // TestEventMultiValueWithArrayUnpack verifies that array fields will be counted after parsing array.
 func TestEventMultiValueWithArrayUnpack(t *testing.T) {
 	definition := `[{"name": "test", "type": "event", "inputs": [{"indexed": false, "name":"value1", "type":"uint8[2]"},{"indexed": false, "name":"value2", "type":"uint8"}]}]`