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htmlconverter_test.go
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htmlconverter_test.go
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package main
import (
"fmt"
"strings"
"testing"
"github.com/stretchr/testify/assert"
"github.com/tdewolff/minify/v2"
"github.com/tdewolff/minify/v2/html"
)
var minifier *minify.M
func minifyHTML(htmlString string) string {
// Initialize minifier if necessary
if minifier == nil {
minifier = minify.New()
minifier.Add("text/html", &html.Minifier{KeepEndTags: true, KeepQuotes: true})
}
minified, err := minifier.String("text/html", htmlString)
if err != nil {
panic(fmt.Sprintf("Could not minify HTML: %d", err))
}
return minified
}
func TestConvertCodeToHTML(t *testing.T) {
source := `const print = (text) => console.log(text);
print("Hello world");`
actual := convertToGoString(convertCodeToHTML(convertToCString(source), convertToCString("js")))
actualTrimmed := strings.TrimSpace(actual)
assert.True(t, strings.HasPrefix(actualTrimmed, `<pre class="chroma">`))
assert.True(t, strings.HasSuffix(actualTrimmed, `</pre>`))
}
func TestConvertMarkdownToHTML(t *testing.T) {
source := `# Heading
Text`
expected := "<h1>Heading</h1><p>Text</p>"
actual := convertToGoString(convertMarkdownToHTML(convertToCString(source)))
assert.Equal(t, expected, minifyHTML(actual))
}
func TestConvertMarkdownToHTMLWithFrontMatter(t *testing.T) {
source := `---
key: Value
key2: Another value
---
# Heading
Text`
expected := "<h1>Heading</h1><p>Text</p>"
actual := convertToGoString(convertMarkdownToHTML(convertToCString(source)))
assert.Equal(t, expected, minifyHTML(actual))
}
func TestConvertMarkdownToHTMLWithSyntaxHighlighting(t *testing.T) {
source := "# Heading\n\nText\n\n```js\nconst print = (text) => console.log(text);\nprint(\"Hello world\");\n```"
actual := convertToGoString(convertMarkdownToHTML(convertToCString(source)))
assert.True(t, strings.Contains(actual, `<pre class="chroma">`))
}
func TestConvertNotebookToHTML(t *testing.T) {
source := `{"cells":[{"cell_type":"code","execution_count":1,"metadata":{},"outputs":[{"name":"stdout","output_type":"stream","text":["Hello world\n"]}],"source":["print(\"Hello world\")"]}],"metadata":{"kernelspec":{"display_name":"Python 3","language":"python","name":"python3"},"language_info":{"codemirror_mode":{"name":"ipython","version":3},"file_extension":".py","mimetype":"text/x-python","name":"python","nbconvert_exporter":"python","pygments_lexer":"ipython3","version":"3.8.2"}},"nbformat":4,"nbformat_minor":4}` // nolint:lll
actual := convertToGoString(convertNotebookToHTML(convertToCString(source)))
actualTrimmed := strings.TrimSpace(actual)
assert.True(t, strings.HasPrefix(actualTrimmed, `<div class="notebook">`))
assert.True(t, strings.HasSuffix(actualTrimmed, `</div>`))
}
func TestConvertNotebookToHTMLInvalid(t *testing.T) {
source := "This is not a valid JSON file."
actual := convertToGoString(convertNotebookToHTML(convertToCString(source)))
assert.True(t, strings.HasPrefix(actual, "error: "))
}