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allow more flexibility in specifying options

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Options can be specified in any order (size no longer needs to be listed
first), and may be repeated.  Duplicated options overwrite previous
values.  Technically, non-size options could already be repeated... now
size can as well.  There's really not much value to this, it's just an
side-effect of allowing any order.

fixes #5
This commit is contained in:
Will Norris 2013-12-26 13:35:23 -08:00
parent b4ed3507e3
commit 0a939cc19d
3 changed files with 47 additions and 27 deletions
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20
proxy/data_test.go
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@ -46,6 +46,7 @@ func TestParseOptions(t *testing.T) {
{"", emptyOptions},
{"x", emptyOptions},
{"0", emptyOptions},
{",,,,", emptyOptions},
// size variations
{"1x", &Options{Width: 1}},
@ -54,12 +55,23 @@ func TestParseOptions(t *testing.T) {
{"0.1x0.2", &Options{Width: 0.1, Height: 0.2}},
// additional flags
{",fit", &Options{Fit: true}},
{",r90", &Options{Rotate: 90}},
{",fv", &Options{FlipVertical: true}},
{",fh", &Options{FlipHorizontal: true}},
{"fit", &Options{Fit: true}},
{"r90", &Options{Rotate: 90}},
{"fv", &Options{FlipVertical: true}},
{"fh", &Options{FlipHorizontal: true}},
// duplicate flags (last one wins)
{"1x2,3x4", &Options{Width: 3, Height: 4}},
{"1x2,3", &Options{Width: 3, Height: 3}},
{"1x2,0x3", &Options{Width: 0, Height: 3}},
{"1x,x2", &Options{Width: 1, Height: 2}},
{"r90,r270", &Options{Rotate: 270}},
// mix of valid and invalid flags
{"FOO,1,BAR,r90,BAZ", &Options{Width: 1, Height: 1, Rotate: 90}},
{"1x2,fit,r90,fv,fh", &Options{1, 2, true, 90, true, true}},
{"r90,fh,1x2,fv,fit", &Options{1, 2, true, 90, true, true}},
}
for i, tt := range tests {