//
// Blackfriday Markdown Processor
// Available at http://github.com/russross/blackfriday
//
// Copyright © 2011 Russ Ross <russ@russross.com>.
// Distributed under the Simplified BSD License.
// See README.md for details.
//

//
// Markdown 1.0.3 reference tests
//

package blackfriday

import (
	"io/ioutil"
	"path/filepath"
	"testing"
)

func runMarkdownReference(input string) string {
	renderer := HtmlRenderer(0, "", "")
	return string(Markdown([]byte(input), renderer, 0))
}

func doTestsReference(t *testing.T, files []string) {
	// catch and report panics
	var candidate string
	defer func() {
		if err := recover(); err != nil {
			t.Errorf("\npanic while processing [%#v]\n", candidate)
		}
	}()

	for _, basename := range files {
		filename := filepath.Join("upskirtref", basename+".text")
		inputBytes, err := ioutil.ReadFile(filename)
		if err != nil {
			t.Errorf("Couldn't open '%s', error: %v\n", filename, err)
			continue
		}
		input := string(inputBytes)

		filename = filepath.Join("upskirtref", basename+".html")
		expectedBytes, err := ioutil.ReadFile(filename)
		if err != nil {
			t.Errorf("Couldn't open '%s', error: %v\n", filename, err)
			continue
		}
		expected := string(expectedBytes)

		actual := string(runMarkdownReference(input))
		if actual != expected {
			t.Errorf("\n    [%#v]\nExpected[%#v]\nActual  [%#v]",
				basename+".text", expected, actual)
		}

		// now test every prefix of every input to check for
		// bounds checking
		if !testing.Short() {
			start := 0
			for end := start + 1; end <= len(input); end++ {
				candidate = input[start:end]
				_ = runMarkdownReference(candidate)
			}
		}
	}
}

func TestReference(t *testing.T) {
	files := []string{
		"Amps and angle encoding",
		"Auto links",
		"Backslash escapes",
		"Blockquotes with code blocks",
		"Code Blocks",
		"Code Spans",
		"Hard-wrapped paragraphs with list-like lines",
		"Horizontal rules",
		"Inline HTML (Advanced)",
		"Inline HTML (Simple)",
		"Inline HTML comments",
		"Links, inline style",
		"Links, reference style",
		"Links, shortcut references",
		"Literal quotes in titles",
		"Markdown Documentation - Basics",
		"Markdown Documentation - Syntax",
		"Nested blockquotes",
		"Ordered and unordered lists",
		"Strong and em together",
		"Tabs",
		"Tidyness",
	}
	doTestsReference(t, files)
}