maze-solver-go/maze/parser/parser_test.go

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package parser
import (
"fmt"
"maze-solver/io/reader"
"maze-solver/maze"
"maze-solver/utils"
"testing"
)
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func TestTextReadTrivial(t *testing.T) {
/* trivial.txt
## ##
# #
### #
Nodes are
##0##
#123#
###4#
*/
nodes := make([]*maze.Node, 5)
nodes[0] = maze.NewNode(maze.Coordinates{X: 2, Y: 0})
nodes[1] = maze.NewNode(maze.Coordinates{X: 1, Y: 1})
nodes[2] = maze.NewNode(maze.Coordinates{X: 2, Y: 1})
nodes[3] = maze.NewNode(maze.Coordinates{X: 3, Y: 1})
nodes[4] = maze.NewNode(maze.Coordinates{X: 3, Y: 2})
nodes[0].Down = nodes[2]
nodes[1].Right = nodes[2]
nodes[2].Up = nodes[0]
nodes[2].Left = nodes[1]
nodes[2].Right = nodes[3]
nodes[3].Left = nodes[2]
nodes[3].Down = nodes[4]
nodes[4].Up = nodes[3]
reader := reader.TextReader{
Filename: "../../assets/trivial.txt",
PathChar: ' ',
WallChar: '#',
}
got, err := Parse(reader)
utils.Check(err, "Couldn't create maze from %q", reader.Filename)
utils.AssertEqual(t, got.Width, 5, "Normal: width differ")
utils.AssertEqual(t, got.Height, 3, "Normal: height differ")
if len(nodes) != len(got.Nodes) {
t.Fatalf("Didn't get the same size of nodes: %v, want %v", len(got.Nodes), len(nodes))
}
for i, got := range got.Nodes {
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expected := nodes[i]
checkNode(t, i, got, expected, "")
checkNode(t, i, got.Left, expected.Left, "left")
checkNode(t, i, got.Right, expected.Right, "Right")
checkNode(t, i, got.Up, expected.Up, "Up")
checkNode(t, i, got.Down, expected.Down, "Down")
}
}
func TestTextReadTrivialBigger(t *testing.T) {
/* trivial-bigger.txt
### ###
### ###
# #
##### #
##### #
Nodes are
###0###
### ###
#1 2 3#
##### #
#####4#
*/
nodes := make([]*maze.Node, 5)
nodes[0] = maze.NewNode(maze.Coordinates{X: 3, Y: 0})
nodes[1] = maze.NewNode(maze.Coordinates{X: 1, Y: 2})
nodes[2] = maze.NewNode(maze.Coordinates{X: 3, Y: 2})
nodes[3] = maze.NewNode(maze.Coordinates{X: 5, Y: 2})
nodes[4] = maze.NewNode(maze.Coordinates{X: 5, Y: 4})
nodes[0].Down = nodes[2]
nodes[1].Right = nodes[2]
nodes[2].Up = nodes[0]
nodes[2].Left = nodes[1]
nodes[2].Right = nodes[3]
nodes[3].Left = nodes[2]
nodes[3].Down = nodes[4]
nodes[4].Up = nodes[3]
reader := reader.TextReader{
Filename: "../../assets/trivial-bigger.txt",
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PathChar: ' ',
WallChar: '#',
}
got, err := Parse(reader)
utils.Check(err, "Couldn't create maze from %q", reader.Filename)
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utils.AssertEqual(t, got.Width, 7, "Normal: width differ")
utils.AssertEqual(t, got.Height, 5, "Normal: height differ")
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if len(nodes) != len(got.Nodes) {
t.Fatalf("Didn't get the same size of nodes: %v, want %v", len(got.Nodes), len(nodes))
}
for i, got := range got.Nodes {
expected := nodes[i]
checkNode(t, i, got, expected, "")
checkNode(t, i, got.Left, expected.Left, "left")
checkNode(t, i, got.Right, expected.Right, "Right")
checkNode(t, i, got.Up, expected.Up, "Up")
checkNode(t, i, got.Down, expected.Down, "Down")
}
}
func TestTextReadTrivialBiggerStaggered(t *testing.T) {
/* trivial-bigger-staggered.txt
### ###
### ###
# #
#### ##
#### ##
Nodes are
###0###
### ###
#1 243#
#### ##
####5##
*/
nodes := make([]*maze.Node, 6)
nodes[0] = maze.NewNode(maze.Coordinates{X: 3, Y: 0})
nodes[1] = maze.NewNode(maze.Coordinates{X: 1, Y: 2})
nodes[2] = maze.NewNode(maze.Coordinates{X: 3, Y: 2})
nodes[3] = maze.NewNode(maze.Coordinates{X: 5, Y: 2})
nodes[4] = maze.NewNode(maze.Coordinates{X: 4, Y: 2})
nodes[5] = maze.NewNode(maze.Coordinates{X: 4, Y: 4})
nodes[0].Down = nodes[2]
nodes[1].Right = nodes[2]
nodes[2].Up = nodes[0]
nodes[2].Left = nodes[1]
nodes[2].Right = nodes[4]
nodes[3].Left = nodes[4]
nodes[4].Down = nodes[5]
nodes[4].Left = nodes[2]
nodes[4].Right = nodes[3]
nodes[5].Up = nodes[4]
reader := reader.TextReader{
Filename: "../../assets/trivial-bigger-staggered.txt",
PathChar: ' ',
WallChar: '#',
}
got, err := Parse(reader)
utils.Check(err, "Couldn't create maze from %q", reader.Filename)
utils.AssertEqual(t, got.Width, 7, "Normal: width differ")
utils.AssertEqual(t, got.Height, 5, "Normal: height differ")
if len(nodes) != len(got.Nodes) {
t.Fatalf("Didn't get the same size of nodes: %v, want %v", len(got.Nodes), len(nodes))
}
for i, got := range got.Nodes {
expected := nodes[i]
checkNode(t, i, got, expected, "")
checkNode(t, i, got.Left, expected.Left, "left")
checkNode(t, i, got.Right, expected.Right, "Right")
checkNode(t, i, got.Up, expected.Up, "Up")
checkNode(t, i, got.Down, expected.Down, "Down")
}
}
func TestTextReadNormal(t *testing.T) {
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/* normal.txt
##### #####
# # #
##### ### #
# # #
# # ##### #
# # #
### ### # #
# # # #
# ####### #
# # #
##### #####
Nodes are
#####0#####
#1 2#3 4#
##### ### #
#5 6#7 8#
# # ##### #
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#9#A F B#
### ### # #
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#C D#E G# #
# ####### #
#H I#J K#
#####L#####
*/
nodes := make([]*maze.Node, 22)
// ---- Node creation ----
coords := []struct{ x, y int }{
{5, 0}, // 0
{1, 1}, // 1
{5, 1}, // 2
{7, 1}, // 3
{9, 1}, // 4
{1, 3}, // 5
{3, 3}, // 6
{5, 3}, // 7
{9, 3}, // 8
{1, 5}, // 9
{3, 5}, // A (10)
{9, 5}, // B (11)
{1, 7}, // C (12)
{3, 7}, // D (13)
{5, 7}, // E (14)
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{7, 5}, // F (15)
{7, 7}, // G (16)
{1, 9}, // H (17)
{5, 9}, // I (18)
{7, 9}, // J (19)
{9, 9}, // K (20)
{5, 10}, // L (21)
}
for i, coord := range coords {
nodes[i] = maze.NewNode(maze.Coordinates{X: coord.x, Y: coord.y})
}
// ---- Node linking ----
// Vertical
links := []struct {
from, to int
}{
{0, 2},
{2, 7},
{4, 8},
{5, 9},
{6, 10},
{8, 11},
{10, 13},
{15, 16},
{11, 20},
{12, 17},
{18, 21},
}
for _, link := range links {
nodes[link.from].Down = nodes[link.to]
nodes[link.to].Up = nodes[link.from]
}
links = []struct {
from, to int
}{
{1, 2},
{3, 4},
{5, 6},
{7, 8},
{10, 15},
{15, 11},
{12, 13},
{14, 16},
{17, 18},
{19, 20},
}
for _, link := range links {
nodes[link.from].Right = nodes[link.to]
nodes[link.to].Left = nodes[link.from]
}
reader := reader.TextReader{
Filename: "../../assets/normal.txt",
PathChar: ' ',
WallChar: '#',
}
got, err := Parse(reader)
utils.Check(err, "Couldn't create maze from %q", reader.Filename)
utils.AssertEqual(t, got.Width, 11, "Normal: width differ")
utils.AssertEqual(t, got.Height, 11, "Normal: height differ")
if len(nodes) != len(got.Nodes) {
for i, node := range got.Nodes {
fmt.Printf("%v: %v\n", i, node)
}
t.Fatalf("Didn't get the same size of nodes: %v, want %v", len(got.Nodes), len(nodes))
}
for i, got := range got.Nodes {
expected := nodes[i]
checkNode(t, i, got, expected, "")
checkNode(t, i, got.Left, expected.Left, "left")
checkNode(t, i, got.Right, expected.Right, "Right")
checkNode(t, i, got.Up, expected.Up, "Up")
checkNode(t, i, got.Down, expected.Down, "Down")
}
}
func TestTextReadNormal2(t *testing.T) {
/* normal2.txt
####### #######
# # # #
### # ##### # #
# # # #
# ########### #
# # # #
### # # ##### #
# # # # #
# ### ### # # #
# # # # #
# ### # #######
# # # # #
# # ### ### # #
# # # #
####### #######
Nodes are
#######0#######
#1 2#3 4 5#B#
### # ##### # #
#6 7#8 9#A C#
# ########### #
#D I E#F G# #
### # # ##### #
#H J#K L#M N# #
# ### ### # # #
# #O P#Q R#S T#
# ### # #######
#U V#W# #X C Y#
# # ### ### # #
#Z#A B D#E#
#######F#######
*/
nodes := make([]*maze.Node, 42)
// ---- Node creation ----
coords := []struct{ x, y int }{
{7, 0}, // 0
{1, 1}, // 1
{3, 1}, // 2
{5, 1}, // 3
{7, 1}, // 4
{11, 1}, // 5
{1, 3}, // 6
{3, 3}, // 7
{5, 3}, // 8
{9, 3}, // 9
{11, 3}, // 10 (A)
{13, 1}, // 11 (B)
{13, 3}, // 12 (C)
{1, 5}, // 13 (D)
{5, 5}, // 14 (E)
{7, 5}, // 15 (F)
{11, 5}, // 16 (G)
{1, 7}, // 17 (H)
{3, 5}, // 18 (I)
{3, 7}, // 19 (J)
{5, 7}, // 20 (K)
{7, 7}, // 21 (L)
{9, 7}, // 22 (M)
{11, 7}, // 23 (N)
{3, 9}, // 24 (O)
{5, 9}, // 25 (P)
{7, 9}, // 26 (Q)
{9, 9}, // 27 (R)
{11, 9}, // 28 (S)
{13, 9}, // 29 (T)
{1, 11}, // 30 (U)
{3, 11}, // 31 (V)
{5, 11}, // 32 (W)
{9, 11}, // 33 (X)
{13, 11}, // 34 (Y)
{1, 13}, // 35 (Z)
{3, 13}, // 36 (AA)
{7, 13}, // 37 (AB)
{11, 11}, // 38 (AC)
{11, 13}, // 39 (AD)
{13, 13}, // 40 (AE)
{7, 14}, // 42 (AF)
}
for i, coord := range coords {
nodes[i] = maze.NewNode(maze.Coordinates{X: coord.x, Y: coord.y})
}
// ---- Node linking ----
// Vertical
links := []struct {
from, to int
}{
{0, 4},
{2, 7},
{3, 8},
{5, 10},
{11, 12},
{6, 13},
{12, 29},
{18, 19},
{14, 20},
{15, 21},
{17, 30},
{20, 25},
{22, 27},
{23, 28},
{25, 32},
{26, 37},
{30, 35},
{31, 36},
{38, 39},
{34, 40},
{37, 41},
}
for _, link := range links {
nodes[link.from].Down = nodes[link.to]
nodes[link.to].Up = nodes[link.from]
}
links = []struct {
from, to int
}{
{1, 2},
{3, 4},
{4, 5},
{6, 7},
{8, 9},
{10, 12},
{13, 18},
{18, 14},
{15, 16},
{17, 19},
{20, 21},
{22, 23},
{24, 25},
{26, 27},
{28, 29},
{30, 31},
{33, 38},
{38, 34},
{36, 37},
{37, 39},
}
for _, link := range links {
nodes[link.from].Right = nodes[link.to]
nodes[link.to].Left = nodes[link.from]
}
reader := reader.TextReader{
Filename: "../../assets/normal2.txt",
PathChar: ' ',
WallChar: '#',
}
got, err := Parse(reader)
utils.Check(err, "Couldn't create maze from %q", reader.Filename)
utils.AssertEqual(t, got.Width, 15, "Normal 2: width differ")
utils.AssertEqual(t, got.Height, 15, "Normal 2: height differ")
if len(nodes) != len(got.Nodes) {
for i, node := range got.Nodes {
fmt.Printf("%v: %v\n", i, node)
}
t.Fatalf("Didn't get the same size of nodes: %v, want %v", len(got.Nodes), len(nodes))
}
for i, got := range got.Nodes {
expected := nodes[i]
checkNode(t, i, got, expected, "")
checkNode(t, i, got.Left, expected.Left, "left")
checkNode(t, i, got.Right, expected.Right, "Right")
checkNode(t, i, got.Up, expected.Up, "Up")
checkNode(t, i, got.Down, expected.Down, "Down")
}
}
func checkNode(t *testing.T, i int, got *maze.Node, expected *maze.Node, side string) {
if expected == nil && got != nil {
t.Fatalf("Somehow there is a node %s of %v, didn't want any", side, i)
}
if expected == nil && got == nil {
return
}
if expected != nil && got == nil {
t.Fatalf("No %s node of %v, want %v", side, i, expected.Coords)
}
if got.Coords != expected.Coords {
t.Fatalf("Coords %s node of %v: %v, but want %v", side, i, got.Coords, expected.Coords)
}
}