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go-frameproto
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Charles Iliya Krempeaux 2024-02-14 16:27:07 -08:00
parent 4ae1dccf55
commit 2b24feddab
2 changed files with 117 additions and 0 deletions
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21
appendframeimage.go 100644
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package frameproto
// AppendFrameImage will append the HTML <meta/> element for the Frame-Protocol's (i.e., Farcaster Frame's) "fc:frame:image" name-value pair.
//
// For example, this call:
//
// var p []byte
//
// // ...
//
// var url string = "https://example.com/images/screen.png"
//
// p = frameproto.AppendFrameImage(p, url)
//
// Would append this HTML <meta/> element:
//
// <meta property="fc:frame:image" content="https://example.com/images/screen.png" />
func AppendFrameImage(p []byte, url string) []byte {
const property string = MetaPropertyFrameImage
return appendMetaPropertyContent(p, property, url)
}

96
appendframeimage_test.go 100644
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package frameproto
import (
"testing"
)
func TestAppendFrameImage(t *testing.T) {
tests := []struct{
Version string
Expected string
}{
{
Version: "",
Expected: `<meta property="fc:frame:image" content="" />`+"\n",
},
{
Version: "something",
Expected: `<meta property="fc:frame:image" content="something" />`+"\n",
},
{
Version: "Hello world! 🙂",
Expected: `<meta property="fc:frame:image" content="Hello world! 🙂" />`+"\n",
},
{
Version: "https://example.com/path/to/post/to.png",
Expected: `<meta property="fc:frame:image" content="https://example.com/path/to/post/to.png" />`+"\n",
},
{
Version: "x-proto:apple/banana/cherry",
Expected: `<meta property="fc:frame:image" content="x-proto:apple/banana/cherry" />`+"\n",
},
}
for testNumber, test := range tests {
{
var buffer [256]byte
var p []byte = buffer[0:0]
p = AppendFrameImage(p, test.Version)
expected := test.Expected
actual := string(p)
if expected != actual {
t.Errorf("For test #%d, the actual written meta-tag is not what was expected.", testNumber)
t.Logf("EXPECTED: %s", expected)
t.Logf("ACTUAL: %s", actual)
t.Logf("EXPECTED: %q", expected)
t.Logf("ACTUAL: %q", actual)
t.Logf("LABEL: %q", test.Version)
continue
}
}
{
const top string = "<html>\n<head>\n"
const bottom string = "</head>\n<body>\n</body>\n</html>\n"
var buffer [256]byte
var p []byte = buffer[0:0]
p = append(p, top...)
p = AppendFrameImage(p, test.Version)
p = append(p, bottom...)
expected := top + test.Expected + bottom
actual := string(p)
if expected != actual {
t.Errorf("For test #%d, the actual written meta-tag is not what was expected.", testNumber)
t.Logf("EXPECTED: %s", expected)
t.Logf("ACTUAL: %s", actual)
t.Logf("EXPECTED: %q", expected)
t.Logf("ACTUAL: %q", actual)
t.Logf("LABEL: %q", test.Version)
continue
}
}
}
}