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greedy_bfs_test.go
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package pathing_test
import (
"fmt"
"testing"
"github.com/quasilyte/pathing"
)
func BenchmarkGreedyBFS(b *testing.B) {
l := pathing.MakeGridLayer([4]uint8{1, 0, 1, 1})
for i := range bfsTests {
test := bfsTests[i]
if !test.bench {
continue
}
numCols := len(test.path[0])
numRows := len(test.path)
b.Run(fmt.Sprintf("%s_%dx%d", test.name, numCols, numRows), func(b *testing.B) {
parseResult := testParseGrid(b, test.path)
bfs := pathing.NewGreedyBFS(pathing.GreedyBFSConfig{
NumCols: uint(parseResult.numCols),
NumRows: uint(parseResult.numRows),
})
b.ResetTimer()
for i := 0; i < b.N; i++ {
bfs.BuildPath(parseResult.grid, parseResult.start, parseResult.dest, l)
}
})
}
}
func TestGreedyBFS(t *testing.T) {
for i := range bfsTests {
runPathfindTest(t, bfsTests[i], func(cols, rows uint) pathBuilder {
return pathing.NewGreedyBFS(pathing.GreedyBFSConfig{
NumCols: cols,
NumRows: rows,
})
})
}
}
var bfsTests = []pathfindTestCase{
{
name: "trivial_short",
path: []string{
"..........",
"...A $..",
"..........",
},
bench: true,
},
{
name: "trivial_short2",
path: []string{
"..........",
"...A......",
"... ......",
"... ......",
"... $....",
"..........",
},
bench: true,
},
{
name: "trivial",
path: []string{
".A..........",
". ..........",
". ..........",
". ..........",
". ..........",
". ..........",
". $",
},
bench: true,
},
{
name: "trivial_long",
path: []string{
".......................x........",
" $",
"A...............................",
"..........................x.....",
},
bench: true,
},
{
name: "simple_wall1",
path: []string{
"........",
"...A....",
"... ..",
"....x ..",
"....x $.",
},
bench: true,
},
{
name: "simple_wall2",
path: []string{
"... ..",
"...Ax ..",
"....x ..",
"....x ..",
"....x $.",
},
bench: true,
},
{
name: "simple_wall3",
path: []string{
"..........x.....................",
"..........x.....................",
"..........x.....................",
"..........x.....................",
"............. ................",
".. x $......",
".. ...........x.................",
"..A...........x.................",
"....x...........................",
"....x...........................",
"....x...........................",
"....x...........................",
},
bench: true,
},
{
name: "simple_wall4",
path: []string{
"..........x.....................",
"..........x.....................",
"..........x.....................",
"..........x.....................",
"................................",
"..............x.................",
"..............x.................",
"..A...........x.................",
".. .x...........................",
".. .x...........................",
".. .x...........................",
".. .x...........................",
".. .............................",
".. .............................",
".. ..................xxxxxxxx...",
".. .............................",
".. .............................",
".. ...........x.................",
".. ...........x.................",
".. ........x.................",
"....x ..........................",
"....x $....",
"....x...........................",
"....x...........................",
},
bench: true,
},
{
name: "zigzag1",
path: []string{
"........",
" A....",
" xxxxxx.",
" .......",
" .xxxxxx",
" .......",
" $......",
},
bench: true,
},
{
name: "zigzag2",
path: []string{
"........",
"...A ",
".xxxxxx ",
"..... ",
"..xxx xx",
"..... ..",
"..... $",
},
bench: true,
},
{
name: "zigzag3",
path: []string{
"... ....x.....",
"..A x ....x.....",
"....x ....x.....",
"....x ....x.....",
"....x $..",
"....x...........",
},
bench: true,
},
{
name: "zigzag4",
path: []string{
"... .x. x...",
"... x .x. x x...",
"... x .x. x x...",
"... x .x. x ..",
"..A x x x.x $",
"....x. .x.x...",
},
bench: true,
},
{
name: "zigzag5",
path: []string{
".A ..",
"xxxxxx ..",
".. ..",
".. xxxxxx",
".. ....",
"xxxx x...",
".... .",
"...xxxx x",
".......$.",
},
bench: true,
},
{
name: "double_corner1",
path: []string{
". .x A.",
". x .x ...",
"x x .x ...",
" x .x ...",
" xx ...",
" .xxxxxxxx",
" $......",
},
bench: true,
},
{
name: "double_corner2",
path: []string{
". x..A.",
". x. x.. .",
"x x. x.. .",
" x. x.. .",
" xx. .",
" .xxxxxxxx",
" $.",
"..........",
},
},
{
name: "double_corner3",
path: []string{
" x..A.",
" x. x.. .",
" x. x.. .",
" x. .",
" xxxxxxxx",
" $.",
},
},
{
name: "labyrinth1",
path: []string{
".........x.....",
"xxxxxxxx.x. $.",
"x. x.x. ...",
"x. xxx x.x. ...",
"x. x x.x. ...",
"x...Ax xx .xx",
"x....x.x x ...",
"xxxxxx.x x xxxx",
"x......x x .",
"xxxxxxxx xxxx x",
"........ x .",
"........ ....",
},
bench: true,
},
{
name: "labyrinth2",
path: []string{
".x......x.......x............",
".x......x.......x............",
".x......x.......x............",
".x......x.......xxxxxxxxxx...",
".x.... ...x..... ...",
".x xxx.x x.....$.x xx",
" .x..x...xxx. x.......x. .",
"A...x..x...x... xxxxxxxxxxx .",
"..x.x..x....... x .",
"..x.x..x....x...... x .......",
"..x.x..x..xxxx...x. .......",
"..x.x.......x....x...........",
},
bench: true,
},
{
name: "labyrinth3",
path: []string{
"...x......x........x............",
"..Ax......x........x............",
".. x......x........xxxxxxxxxx...",
".. x...............x............",
".. x.....xxx..x....x.......x..xx",
".. ...x..x....xxx..x.......x....",
".. ...x..x....x....xxxxxxxxxxx..",
".. .x.x..x.....x... .x........",
".. .x.x..x...xxxx. x ..",
".. x....... xxxxxxxxxx ..",
"xxxx..... .. x........ ..",
"...x.....xxx..x x.......x .xx",
"......x..x....xxx..x.......x .",
"......x..x....x....xxxxxx.xxxx .",
"....x.x........x....x..x...$ .",
},
bench: true,
},
{
// This is unfortunate.
// TODO: can we adjust anything to make it better?
name: "depth1",
path: []string{
"........................",
".xxxxxxxxxxxxxxxxxxxx...",
"....................x...",
".xxxxxxxxxxxxxxxxxx.x...",
"....................x...",
".x.xxxxxxxxxxxxxxxxxx...",
"..................A x.B.",
".x.xxxxxxxxxxxxxxxxxx...",
"....................x...",
".xxxxxxxxxxxxxxxxxx.x...",
"....................x...",
".xxxxxxxxxxxxxxxxxxxx...",
"........................",
},
partial: true,
bench: true,
},
{
name: "depth2",
path: []string{
"................... ..",
".. x ..",
".x xxxxxxxxxxxxxxxxxx ..",
".. A.x $.",
".x.xxxxxxxxxxxxxxxxxx...",
"....................x...",
".xxxxxxxxxxxxxxxxxx.x...",
"....................x...",
".xxxxxxxxxxxxxxxxxxxx...",
"........................",
},
bench: true,
},
{
name: "nopath1",
path: []string{
"A x.B",
".....x..",
},
partial: true,
bench: true,
},
{
name: "nopath2",
path: []string{
"....Ax.B",
".....x..",
},
partial: true,
bench: true,
},
{
name: "nopath3",
path: []string{
"........",
".xxxxx..",
".x...x..",
".x.A.x..",
".x. x..",
".xxxxx..",
".......B",
},
partial: true,
bench: true,
},
{
name: "nopath4",
path: []string{
".....x.....x..",
".xxxxx. .x..",
".x...x. x .x..",
".x.A.x. x x..",
".x. xxxx..",
".xxxxxxxx.....",
".............B",
},
partial: true,
bench: true,
},
{
name: "nopath5",
path: []string{
".B...x.....x..",
".xxxxx.....x..",
".x .x..x..x..",
".x.A.x..x..x..",
".x......xxxx..",
".xxxxxxxx.....",
"..............",
},
partial: true,
bench: true,
},
{
name: "tricky1",
path: []string{
" $",
" .xxxxxxxxxxxx..",
" ............x..",
" ............x..",
" ............x..",
" ............x..",
" ............x..",
"A..xxxxxxxxxxx..",
"................",
},
bench: true,
},
{
name: "tricky2",
path: []string{
"...............",
". .",
" xxxxxxxxxxx $",
" ...........x..",
" ...........x..",
" ...........x..",
" ...........x..",
" ...........x..",
" ...........x..",
" ...........x..",
" ...........x..",
" ...........x..",
"A.xxxxxxxxxxx..",
"...............",
"...............",
},
bench: true,
},
{
name: "tricky3",
path: []string{
"...............",
"...............",
"..xxxxxxxxxxx A",
"............x .",
"............x .",
"............x .",
"............x .",
"............x .",
"............x .",
"............x .",
"............x .",
"............x .",
"$ xxxxxxxxxxx .",
". .",
"...............",
},
bench: true,
},
{
name: "tricky4",
path: []string{
"...............",
". .",
". xxxxxxxxxxx $",
". ......x..",
"..... ......x..",
"..... ......x..",
"..... ......x..",
"..... ......x..",
"..... ......x..",
"..... ......x..",
"..... ......x..",
".....A......x..",
"..xxxxxxxxxxx..",
"...............",
"...............",
},
bench: true,
},
{
name: "tricky5",
path: []string{
"...............",
"...............",
"A.xxxxxxxxxxx..",
" ...........x..",
" ...........x..",
" ...........x..",
" ...........x..",
" ...........x..",
" ...........x..",
" ...........x..",
" ...........x..",
" ...........x..",
" xxxxxxxxxxx $",
". .",
"...............",
},
},
{
name: "tricky6",
path: []string{
"............$ .",
"............. .",
"..xxxxxxxxxxx .",
"..x.........x .",
"..x.........x .",
"..x.........x .",
"..x.........x .",
"..x.........x .",
"..x.........x .",
"..x.........x .",
"..x.........x .",
"..x.........x .",
"..x.........x .",
".. .",
"..A............",
},
},
{
name: "tricky7",
path: []string{
".. A..",
". ............",
". xxxxxxxxxxx..",
". x.........x..",
". x.........x..",
". x.........x..",
". x.........x..",
". x.........x..",
". x.........x..",
". x.........x..",
". x.........x..",
". x.........x..",
". x.........x..",
". .............",
". $............",
},
},
{
name: "tricky8",
path: []string{
". $............",
". .............",
". xxxxxxxxxxx..",
". x.........x..",
". x.........x..",
". x.........x..",
". x.........x..",
". x.........x..",
". x.........x..",
". x.........x..",
". x.........x..",
". x.........x..",
". x.........x..",
". ..",
"............A..",
},
},
{
name: "tricky9",
path: []string{
". $............",
". .............",
". xxxxxxxxxxx..",
". x.........x..",
". x.........x..",
". x.........x..",
". x.........x..",
". x x..",
". x .......Ax..",
". x ........x..",
". x ........x..",
". x ........x..",
". x ........x..",
". ...........",
"...............",
},
},
{
name: "tricky10",
path: []string{
". $............",
". .............",
". xxxxxxxxxxx..",
". x.........x..",
". x.........x..",
". x.........x..",
". x.........x..",
". x.........x..",
". xA........x..",
". x ........x..",
". x ........x..",
". x ........x..",
". x ........x..",
". ...........",
"...............",
},
},
{
name: "tricky11",
path: []string{
". $.........",
". .............",
". xxxxxxxxxxx..",
". x.........x..",
". x.........x..",
". x.........x..",
". x.........x..",
". x.........x..",
". x.........x..",
". x.........x..",
". x.........x..",
". x. x..",
". x ...... x..",
". ....... ..",
"............A..",
},
},
{
name: "tricky12",
path: []string{
"..........$ .",
"............. .",
"..xxxxxxxxxxx .",
"..x.........x .",
"..x.........x .",
"..x.........x .",
"..x.........x .",
"..x.........x .",
"..x.........x .",
"..x.........x .",
"..x.........x .",
"..x.........x .",
"..x.........x .",
"............ .",
"............A..",
},
},
{
name: "tricky13",
path: []string{
"...............",
" $...",
" .....xxxxxxx..",
" ...........x..",
" ...........x..",
" ...........x..",
" ...........x..",
" ...........x..",
" ...........x..",
" ...........x..",
" ...........x..",
" ...........x..",
"A.xxxxxxxxxxx..",
"...............",
"...............",
},
},
{
name: "distlimit1",
path: []string{
"A ..........B",
},
bench: true,
partial: true,
},
{
name: "distlimit2",
path: []string{
"A.............x...... .... ......x.....x.....x....",
" .............x...... x xxxxxxxxxx ......x..x..x..x..x....",
" ...xxxxxxxxxxx...... x...............x ......x..x..x..x..x....",
" x...............x ...x.....x......B",
},
bench: true,
partial: true,
},
}