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Add tests to ensure that the size of important types don't change unexpectedly. Skip the test on nacl platforms because of their unusual padding requirements. Change-Id: Iddb127a99499e089a309b721f5073356c0da8b24 Reviewed-on: https://go-review.googlesource.com/20285 Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org> Run-TryBot: Dave Cheney <dave@cheney.net> Reviewed-by: Josh Bleecher Snyder <josharian@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org>
40 lines
844 B
Go
40 lines
844 B
Go
// Copyright 2016 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// +build !nacl
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package obj
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import (
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"reflect"
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"testing"
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"unsafe"
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)
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// Assert that the size of important structures do not change unexpectedly.
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func TestSizeof(t *testing.T) {
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const _64bit = unsafe.Sizeof(uintptr(0)) == 8
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var tests = []struct {
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val interface{} // type as a value
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_32bit uintptr // size on 32bit platforms
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_64bit uintptr // size on 64bit platforms
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}{
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{Addr{}, 52, 80},
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{LSym{}, 92, 152},
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{Prog{}, 196, 288},
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}
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for _, tt := range tests {
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want := tt._32bit
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if _64bit {
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want = tt._64bit
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}
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got := reflect.TypeOf(tt.val).Size()
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if want != got {
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t.Errorf("unsafe.Sizeof(%T): want %d, got %d", tt.val, want, got)
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}
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}
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}
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