fzf/src/item_test.go

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2015-01-01 14:49:30 -05:00
package fzf
import (
"sort"
"testing"
)
func TestOffsetSort(t *testing.T) {
offsets := []Offset{
Offset{3, 5}, Offset{2, 7},
Offset{1, 3}, Offset{2, 9}}
sort.Sort(ByOrder(offsets))
if offsets[0][0] != 1 || offsets[0][1] != 3 ||
offsets[1][0] != 2 || offsets[1][1] != 7 ||
offsets[2][0] != 2 || offsets[2][1] != 9 ||
offsets[3][0] != 3 || offsets[3][1] != 5 {
t.Error("Invalid order:", offsets)
}
}
func TestRankComparison(t *testing.T) {
if compareRanks(Rank{3, 0, 5}, Rank{2, 0, 7}) ||
!compareRanks(Rank{3, 0, 5}, Rank{3, 0, 6}) ||
!compareRanks(Rank{1, 2, 3}, Rank{1, 3, 2}) ||
!compareRanks(NilRank, Rank{0, 0, 0}) ||
compareRanks(Rank{0, 0, 0}, NilRank) {
t.Error("Invalid order")
}
}
// Match length, string length, index
func TestItemRank(t *testing.T) {
strs := []string{"foo", "foobar", "bar", "baz"}
item1 := Item{text: &strs[0], index: 1, offsets: []Offset{}}
rank1 := item1.Rank()
if rank1[0] != 0 || rank1[1] != 3 || rank1[2] != 1 {
t.Error(item1.Rank())
}
// Only differ in index
item2 := Item{text: &strs[0], index: 0, offsets: []Offset{}}
items := []*Item{&item1, &item2}
sort.Sort(ByRelevance(items))
if items[0] != &item2 || items[1] != &item1 {
t.Error(items)
}
items = []*Item{&item2, &item1, &item1, &item2}
sort.Sort(ByRelevance(items))
if items[0] != &item2 || items[1] != &item2 ||
items[2] != &item1 || items[3] != &item1 {
t.Error(items)
}
// Sort by relevance
item3 := Item{text: &strs[1], index: 2, offsets: []Offset{Offset{1, 3}, Offset{5, 7}}}
item4 := Item{text: &strs[1], index: 2, offsets: []Offset{Offset{1, 2}, Offset{6, 7}}}
item5 := Item{text: &strs[2], index: 2, offsets: []Offset{Offset{1, 3}, Offset{5, 7}}}
item6 := Item{text: &strs[2], index: 2, offsets: []Offset{Offset{1, 2}, Offset{6, 7}}}
items = []*Item{&item1, &item2, &item3, &item4, &item5, &item6}
sort.Sort(ByRelevance(items))
if items[0] != &item2 || items[1] != &item1 ||
items[2] != &item6 || items[3] != &item4 ||
items[4] != &item5 || items[5] != &item3 {
t.Error(items)
}
// Sort merged lists
lists := [][]*Item{
[]*Item{&item2, &item4, &item5}, []*Item{&item1, &item6}, []*Item{&item3}}
items = SortMerge(lists)
if items[0] != &item2 || items[1] != &item1 ||
items[2] != &item6 || items[3] != &item4 ||
items[4] != &item5 || items[5] != &item3 {
t.Error(items)
}
}