package models import ( "html/template" "testing" dmp "github.com/sergi/go-diff/diffmatchpatch" ) func assertEqual(t *testing.T, s1 string, s2 template.HTML) { if s1 != string(s2) { t.Errorf("%s should be equal %s", s2, s1) } } func assertLineEqual(t *testing.T, d1 *DiffLine, d2 *DiffLine) { if d1 != d2 { t.Errorf("%v should be equal %v", d1, d2) } } func TestDiffToHTML(t *testing.T) { assertEqual(t, "+foo bar biz", diffToHTML([]dmp.Diff{ {dmp.DiffEqual, "foo "}, {dmp.DiffInsert, "bar"}, {dmp.DiffDelete, " baz"}, {dmp.DiffEqual, " biz"}, }, DiffLineAdd)) assertEqual(t, "-foo bar biz", diffToHTML([]dmp.Diff{ {dmp.DiffEqual, "foo "}, {dmp.DiffDelete, "bar"}, {dmp.DiffInsert, " baz"}, {dmp.DiffEqual, " biz"}, }, DiffLineDel)) }