all: fix copy-and-paste errors in tests

Fixes #15570

Change-Id: I95d1ac26e342c3bbf36ad1f0209711ea96eaf487
Reviewed-on: https://go-review.googlesource.com/22870Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>

src/encoding/gob/codec_test.go

@@ -1253,7 +1253,7 @@ func TestIgnoreInterface(t *testing.T) {
 	if item2.I != item1.I {
 		t.Error("normal int did not decode correctly")
 	}
-	if item2.F != item2.F {
+	if item2.F != item1.F {
 		t.Error("normal float did not decode correctly")
 	}
 }
@@ -1280,7 +1280,7 @@ func TestUnexportedFields(t *testing.T) {
 	if err != nil {
 		t.Fatal("decode error:", err)
 	}
-	if u0.A != u0.A || u0.B != u1.B || u0.D != u1.D {
+	if u0.A != u1.A || u0.B != u1.B || u0.D != u1.D {
 		t.Errorf("u1->u0: expected %v; got %v", u0, u1)
 	}
 	if u1.c != 1234. {

src/net/conn_test.go

@@ -43,7 +43,7 @@ func TestConnAndListener(t *testing.T) {
 			t.Fatal(err)
 		}
 		defer c.Close()
-		if c.LocalAddr().Network() != network || c.LocalAddr().Network() != network {
+		if c.LocalAddr().Network() != network || c.RemoteAddr().Network() != network {
 			t.Fatalf("got %s->%s; want %s->%s", c.LocalAddr().Network(), c.RemoteAddr().Network(), network, network)
 		}
 		c.SetDeadline(time.Now().Add(someTimeout))

src/net/mockserver_test.go

@@ -228,7 +228,7 @@ func transponder(ln Listener, ch chan<- error) {
 	defer c.Close()
 
 	network := ln.Addr().Network()
-	if c.LocalAddr().Network() != network || c.LocalAddr().Network() != network {
+	if c.LocalAddr().Network() != network || c.RemoteAddr().Network() != network {
 		ch <- fmt.Errorf("got %v->%v; expected %v->%v", c.LocalAddr().Network(), c.RemoteAddr().Network(), network, network)
 		return
 	}