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Copy pathprintf_test.go
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124 lines (120 loc) · 1.86 KB
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package printf
import "testing"
func BenchmarkParseVerb(b *testing.B) {
for i := 0; i < b.N; i++ {
ParseVerb("%[3]*.[2]*[1]f")
}
}
func TestParseVerb(t *testing.T) {
var tests = []struct {
in string
out Verb
}{
{
`%d`,
Verb{
Letter: 'd',
Width: Default{},
Precision: Default{},
Value: -1,
},
},
{
`%#d`,
Verb{
Letter: 'd',
Flags: "#",
Width: Default{},
Precision: Default{},
Value: -1,
},
},
{
`%+#d`,
Verb{
Letter: 'd',
Flags: "+#",
Width: Default{},
Precision: Default{},
Value: -1,
},
},
{
`%[2]d`,
Verb{
Letter: 'd',
Width: Default{},
Precision: Default{},
Value: 2,
},
},
{
`%[3]*.[2]*[1]f`,
Verb{
Letter: 'f',
Width: Star{3},
Precision: Star{2},
Value: 1,
},
},
{
`%6.2f`,
Verb{
Letter: 'f',
Width: Literal(6),
Precision: Literal(2),
Value: -1,
},
},
{
`%#[1]x`,
Verb{
Letter: 'x',
Flags: "#",
Width: Default{},
Precision: Default{},
Value: 1,
},
},
{
"%%",
Verb{
Letter: '%',
Width: Default{},
Precision: Default{},
Value: 0,
},
},
{
"%*%",
Verb{
Letter: '%',
Width: Star{Index: -1},
Precision: Default{},
Value: 0,
},
},
{
"%[1]%",
Verb{
Letter: '%',
Width: Default{},
Precision: Default{},
Value: 0,
},
},
}
for _, tt := range tests {
tt.out.Raw = tt.in
v, n, err := ParseVerb(tt.in)
if err != nil {
t.Errorf("unexpected error %s while parsing %s", err, tt.in)
}
if n != len(tt.in) {
t.Errorf("ParseVerb only consumed %d of %d bytes", n, len(tt.in))
}
if v != tt.out {
t.Errorf("%s parsed to %#v, want %#v", tt.in, v, tt.out)
}
}
}