diff options
| author | Jeff Carr <[email protected]> | 2024-01-14 12:21:06 -0600 |
|---|---|---|
| committer | Jeff Carr <[email protected]> | 2024-01-14 12:21:06 -0600 |
| commit | a502f839a130df70d9508f731b8cf06c19fa71b9 (patch) | |
| tree | e4819815deae5c2ebf2b933c6deac8a2eafe2e8f /internalunsafe_test.go | |
| parent | b71a36f2140c23c55c688454933207b278251384 (diff) | |
flatten pathsv1.1.3
Signed-off-by: Jeff Carr <[email protected]>
Diffstat (limited to 'internalunsafe_test.go')
| -rw-r--r-- | internalunsafe_test.go | 101 |
1 files changed, 101 insertions, 0 deletions
diff --git a/internalunsafe_test.go b/internalunsafe_test.go new file mode 100644 index 0000000..80dc221 --- /dev/null +++ b/internalunsafe_test.go @@ -0,0 +1,101 @@ +// Copyright (c) 2013-2016 Dave Collins <[email protected]> + +// Permission to use, copy, modify, and distribute this software for any +// purpose with or without fee is hereby granted, provided that the above +// copyright notice and this permission notice appear in all copies. + +// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES +// WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF +// MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR +// ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES +// WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN +// ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF +// OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + +// NOTE: Due to the following build constraints, this file will only be compiled +// when the code is not running on Google App Engine, compiled by GopherJS, and +// "-tags safe" is not added to the go build command line. The "disableunsafe" +// tag is deprecated and thus should not be used. +// +build !js,!appengine,!safe,!disableunsafe,go1.4 + +/* +This test file is part of the spew package rather than than the spew_test +package because it needs access to internals to properly test certain cases +which are not possible via the public interface since they should never happen. +*/ + +package spew + +import ( + "bytes" + "reflect" + "testing" +) + +// changeKind uses unsafe to intentionally change the kind of a reflect.Value to +// the maximum kind value which does not exist. This is needed to test the +// fallback code which punts to the standard fmt library for new types that +// might get added to the language. +func changeKind(v *reflect.Value, readOnly bool) { + flags := flagField(v) + if readOnly { + *flags |= flagRO + } else { + *flags &^= flagRO + } + *flags |= flagKindMask +} + +// TestAddedReflectValue tests functionaly of the dump and formatter code which +// falls back to the standard fmt library for new types that might get added to +// the language. +func TestAddedReflectValue(t *testing.T) { + i := 1 + + // Dump using a reflect.Value that is exported. + v := reflect.ValueOf(int8(5)) + changeKind(&v, false) + buf := new(bytes.Buffer) + d := dumpState{w: buf, cs: &Config} + d.dump(v) + s := buf.String() + want := "(int8) 5" + if s != want { + t.Errorf("TestAddedReflectValue #%d\n got: %s want: %s", i, s, want) + } + i++ + + // Dump using a reflect.Value that is not exported. + changeKind(&v, true) + buf.Reset() + d.dump(v) + s = buf.String() + want = "(int8) <int8 Value>" + if s != want { + t.Errorf("TestAddedReflectValue #%d\n got: %s want: %s", i, s, want) + } + i++ + + // Formatter using a reflect.Value that is exported. + changeKind(&v, false) + buf2 := new(dummyFmtState) + f := formatState{value: v, cs: &Config, fs: buf2} + f.format(v) + s = buf2.String() + want = "5" + if s != want { + t.Errorf("TestAddedReflectValue #%d got: %s want: %s", i, s, want) + } + i++ + + // Formatter using a reflect.Value that is not exported. + changeKind(&v, true) + buf2.Reset() + f = formatState{value: v, cs: &Config, fs: buf2} + f.format(v) + s = buf2.String() + want = "<int8 Value>" + if s != want { + t.Errorf("TestAddedReflectValue #%d got: %s want: %s", i, s, want) + } +} |
