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master
test/fixedbugs/issue32187.go
62 строки
1 KB
Matthew Dempsky
[dev.unified] test: relax panic message expectations
20 июл 2022, 02:02
20 июл 2022, 02:02
ebd34e3
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// run // Copyright 2019 The Go Authors. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. // short-circuiting interface-to-concrete comparisons // will not miss panics package main import ( "log" "strings" ) func main() { var ( x interface{} p *int s []int l *interface{} r []*int ) tests := []struct { name string errStr string f func() }{ {"switch case", "", func() { switch x { case x.(*int): } }}, {"interface conversion", "", func() { _ = x == x.(error) }}, {"type assertion", "", func() { _ = x == x.(*int) }}, {"out of bounds", "", func() { _ = x == s[1] }}, {"nil pointer dereference #1", "", func() { _ = x == *p }}, // TODO(mdempsky): Restore "nil pointer dereference" check. The Go // spec doesn't mandate an order for panics (or even panic // messages), but left-to-right is less confusing to users. {"nil pointer dereference #2", "", func() { _ = *l == r[0] }}, {"nil pointer dereference #3", "", func() { _ = *l == any(r[0]) }}, } for _, tc := range tests { testFuncShouldPanic(tc.name, tc.errStr, tc.f) } } func testFuncShouldPanic(name, want string, f func()) { defer func() { e := recover() if e == nil { log.Fatalf("%s: comparison did not panic\n", name) } if have := e.(error).Error(); !strings.Contains(have, want) { log.Fatalf("%s: wrong panic message: have %q, want %q\n", name, have, want) } }() f() }