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// Copyright 2018 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.
package xerrors
import "testing"
func TestParsePrintfVerb(t *testing.T) {
for _, test := range []struct {
in string
wantSize int
wantW bool
}{
{"", 0, false},
{"%", 1, false},
{"%3.1", 4, false},
{"%w", 2, true},
{"%v", 2, false},
{"%3.*[4]d", 8, false},
} {
gotSize, gotW := parsePrintfVerb(test.in)
if gotSize != test.wantSize || gotW != test.wantW {
t.Errorf("parsePrintfVerb(%q) = (%d, %t), want (%d, %t)",
test.in, gotSize, gotW, test.wantSize, test.wantW)
}
}
}
func TestParsePercentW(t *testing.T) {
for _, test := range []struct {
in string
wantIdx int
wantFormat string
wantOK bool
}{
{"", -1, "", true},
{"%", -1, "%", true},
{"%w", 0, "%v", true},
{"%w%w", 0, "%v%v", false},
{"%3.2s %+q %% %w %#v", 2, "%3.2s %+q %% %v %#v", true},
{"%3.2s %w %% %w %#v", 1, "%3.2s %v %% %v %#v", false},
} {
gotIdx, gotFormat, gotOK := parsePercentW(test.in)
if gotIdx != test.wantIdx || gotFormat != test.wantFormat || gotOK != test.wantOK {
t.Errorf("parsePercentW(%q) = (%d, %q, %t), want (%d, %q, %t)",
test.in, gotIdx, gotFormat, gotOK, test.wantIdx, test.wantFormat, test.wantOK)
}
}
}
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