package models import ( dmp "github.com/sergi/go-diff/diffmatchpatch" "html/template" "testing" ) 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.Diff{dmp.DiffEqual, "foo "}, dmp.Diff{dmp.DiffInsert, "bar"}, dmp.Diff{dmp.DiffDelete, " baz"}, dmp.Diff{dmp.DiffEqual, " biz"}, }, DIFF_LINE_ADD)) assertEqual(t, "foo bar biz", diffToHtml([]dmp.Diff{ dmp.Diff{dmp.DiffEqual, "foo "}, dmp.Diff{dmp.DiffDelete, "bar"}, dmp.Diff{dmp.DiffInsert, " baz"}, dmp.Diff{dmp.DiffEqual, " biz"}, }, DIFF_LINE_DEL)) } // test if GetLine is return the correct lines func TestGetLine(t *testing.T) { ds := DiffSection{Lines: []*DiffLine{ &DiffLine{LeftIdx: 28, RightIdx: 28, Type: DIFF_LINE_PLAIN}, &DiffLine{LeftIdx: 29, RightIdx: 29, Type: DIFF_LINE_PLAIN}, &DiffLine{LeftIdx: 30, RightIdx: 30, Type: DIFF_LINE_PLAIN}, &DiffLine{LeftIdx: 31, RightIdx: 0, Type: DIFF_LINE_DEL}, &DiffLine{LeftIdx: 0, RightIdx: 31, Type: DIFF_LINE_ADD}, &DiffLine{LeftIdx: 0, RightIdx: 32, Type: DIFF_LINE_ADD}, &DiffLine{LeftIdx: 32, RightIdx: 33, Type: DIFF_LINE_PLAIN}, &DiffLine{LeftIdx: 33, RightIdx: 0, Type: DIFF_LINE_DEL}, &DiffLine{LeftIdx: 34, RightIdx: 0, Type: DIFF_LINE_DEL}, &DiffLine{LeftIdx: 35, RightIdx: 0, Type: DIFF_LINE_DEL}, &DiffLine{LeftIdx: 36, RightIdx: 0, Type: DIFF_LINE_DEL}, &DiffLine{LeftIdx: 0, RightIdx: 34, Type: DIFF_LINE_ADD}, &DiffLine{LeftIdx: 0, RightIdx: 35, Type: DIFF_LINE_ADD}, &DiffLine{LeftIdx: 0, RightIdx: 36, Type: DIFF_LINE_ADD}, &DiffLine{LeftIdx: 0, RightIdx: 37, Type: DIFF_LINE_ADD}, &DiffLine{LeftIdx: 37, RightIdx: 38, Type: DIFF_LINE_PLAIN}, &DiffLine{LeftIdx: 38, RightIdx: 39, Type: DIFF_LINE_PLAIN}, }} assertLineEqual(t, ds.GetLine(DIFF_LINE_ADD, 31), ds.Lines[4]) assertLineEqual(t, ds.GetLine(DIFF_LINE_DEL, 31), ds.Lines[3]) assertLineEqual(t, ds.GetLine(DIFF_LINE_ADD, 33), ds.Lines[11]) assertLineEqual(t, ds.GetLine(DIFF_LINE_ADD, 34), ds.Lines[12]) assertLineEqual(t, ds.GetLine(DIFF_LINE_ADD, 35), ds.Lines[13]) assertLineEqual(t, ds.GetLine(DIFF_LINE_ADD, 36), ds.Lines[14]) assertLineEqual(t, ds.GetLine(DIFF_LINE_DEL, 34), ds.Lines[7]) assertLineEqual(t, ds.GetLine(DIFF_LINE_DEL, 35), ds.Lines[8]) assertLineEqual(t, ds.GetLine(DIFF_LINE_DEL, 36), ds.Lines[9]) assertLineEqual(t, ds.GetLine(DIFF_LINE_DEL, 37), ds.Lines[10]) }