package htmlescape_test

import (
	"testing"

	"bytes"

	"sourcecode.social/reiver/go-htmlescape"
)

func TestAppendString(t *testing.T) {

	tests := []struct{
		Bytes []byte
		String string
		Expected []byte
	}{
		{
			Bytes:    []byte("Hello world! 🙂 Take a look at this: "),
			String:                                               "",
			Expected: []byte("Hello world! 🙂 Take a look at this: "),
		},



		{
			Bytes:    []byte("Hello world! 🙂 Take a look at this: "),
			String:                                               "This is NOT <b>bold</b>!",
			Expected: []byte("Hello world! 🙂 Take a look at this: This is NOT &lt;b&gt;bold&lt;/b&gt;!"),
		},



		{
			Bytes:    []byte("Hello world! 🙂 Take a look at this: "),
			String:                                               `"this is a quotation"`,
			Expected: []byte("Hello world! 🙂 Take a look at this: &#34;this is a quotation&#34;"),
		},



		{
			Bytes:    []byte("Hello world! 🙂 Take a look at this: "),
			String:                                                  "\t3 < 5\r\n3 > 2\x00",
			Expected: []byte("Hello world! 🙂 Take a look at this: &#x9;3 &lt; 5&#xD;&#xA;3 &gt; 2&#x0;"),
		},
	}

	for testNumber, test := range tests {

		var p []byte = append([]byte(nil), test.Bytes...)
		actual, err := htmlescape.AppendString(p, test.String)

		if nil != err {
			t.Errorf("For test #%d, did not expect to get an error but actually got one." , testNumber)
			t.Logf("ERROR: (%T) %s", err, err)
			t.Logf("STRING: %q", test.String)
			t.Logf("BYTES: %q", test.Bytes)
			continue
		}

		expected := test.Expected

		if !bytes.Equal(expected, actual) {
			t.Errorf("For test #%d, the actual resulting value of the append is not what was expected.", testNumber)
			t.Logf("EXPECTED: %q", expected)
			t.Logf("ACTUAL:   %q", actual)
			t.Logf("STRING: %q", test.String)
			t.Logf("BYTES: %q", test.Bytes)
			continue
		}
	}
}