fmt_unexported_test.go

Documentation: golang.org/x/xerrors

     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  
     5  package xerrors
     6  
     7  import "testing"
     8  
     9  func 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  
    30  func 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
View as plain text