1// Copyright 2018 The Go Authors. All rights reserved. 2// Use of this source code is governed by a BSD-style 3// license that can be found in the LICENSE file. 4 5package xerrors 6 7import "testing" 8 9func TestParsePrintfVerb(t *testing.T) { 10 for _, test := range []struct { 11 in string 12 wantSize int 13 wantW bool 14 }{ 15 {"", 0, false}, 16 {"%", 1, false}, 17 {"%3.1", 4, false}, 18 {"%w", 2, true}, 19 {"%v", 2, false}, 20 {"%3.*[4]d", 8, false}, 21 } { 22 gotSize, gotW := parsePrintfVerb(test.in) 23 if gotSize != test.wantSize || gotW != test.wantW { 24 t.Errorf("parsePrintfVerb(%q) = (%d, %t), want (%d, %t)", 25 test.in, gotSize, gotW, test.wantSize, test.wantW) 26 } 27 } 28} 29 30func TestParsePercentW(t *testing.T) { 31 for _, test := range []struct { 32 in string 33 wantIdx int 34 wantFormat string 35 wantOK bool 36 }{ 37 {"", -1, "", true}, 38 {"%", -1, "%", true}, 39 {"%w", 0, "%v", true}, 40 {"%w%w", 0, "%v%v", false}, 41 {"%3.2s %+q %% %w %#v", 2, "%3.2s %+q %% %v %#v", true}, 42 {"%3.2s %w %% %w %#v", 1, "%3.2s %v %% %v %#v", false}, 43 } { 44 gotIdx, gotFormat, gotOK := parsePercentW(test.in) 45 if gotIdx != test.wantIdx || gotFormat != test.wantFormat || gotOK != test.wantOK { 46 t.Errorf("parsePercentW(%q) = (%d, %q, %t), want (%d, %q, %t)", 47 test.in, gotIdx, gotFormat, gotOK, test.wantIdx, test.wantFormat, test.wantOK) 48 49 } 50 } 51} 52