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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 <span class=\"added-code\">bar</span> 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 <span class=\"removed-code\">bar</span> 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])
}
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