Byte-snake-engine/constrictor_test.go
2021-01-19 15:33:05 -08:00

129 lines
2.7 KiB
Go

package rules
import (
"testing"
"github.com/stretchr/testify/require"
)
func TestConstrictorRulesetInterface(t *testing.T) {
var _ Ruleset = (*ConstrictorRuleset)(nil)
}
func TestConstrictorCreateInitialBoardState(t *testing.T) {
tests := []struct {
Height int32
Width int32
IDs []string
}{
{1, 1, []string{}},
{1, 1, []string{"one"}},
{2, 2, []string{"one"}},
{2, 2, []string{"one", "two"}},
{11, 1, []string{"one", "two"}},
{11, 11, []string{}},
{11, 11, []string{"one", "two", "three", "four", "five"}},
}
r := ConstrictorRuleset{}
for testNum, test := range tests {
state, err := r.CreateInitialBoardState(test.Width, test.Height, test.IDs)
require.NoError(t, err)
require.NotNil(t, state)
require.Equal(t, test.Width, state.Width)
require.Equal(t, test.Height, state.Height)
require.Len(t, state.Food, 0, testNum)
// Verify snakes
require.Equal(t, len(test.IDs), len(state.Snakes))
for i, id := range test.IDs {
require.Equal(t, id, state.Snakes[i].ID)
require.Equal(t, state.Snakes[i].Body[2], state.Snakes[i].Body[1])
}
}
}
func TestConstrictorCreateNextBoardState(t *testing.T) {
tests := []struct {
prevState *BoardState
moves []SnakeMove
expectedState *BoardState
}{
{
&BoardState{
Width: 3,
Height: 3,
Snakes: []Snake{
{
ID: "one",
Body: []Point{{0, 0}, {0, 0}, {0, 0}},
Health: 100,
},
{
ID: "two",
Body: []Point{{2, 2}, {2, 2}, {2, 2}},
Health: 100,
},
},
Food: []Point{},
},
[]SnakeMove{
{ID: "one", Move: MoveUp},
{ID: "two", Move: MoveDown},
},
&BoardState{
Width: 3,
Height: 3,
Snakes: []Snake{
{
ID: "one",
Body: []Point{{0, 1}, {0, 0}, {0, 0}},
Health: 100,
},
{
ID: "two",
Body: []Point{{2, 1}, {2, 2}, {2, 2}},
Health: 100,
},
},
Food: []Point{},
},
},
// Ensure snakes keep growing and are fed
{
&BoardState{
Width: 3,
Height: 3,
Snakes: []Snake{
{
ID: "one",
Body: []Point{{2, 0}, {1, 0}, {0, 0}, {0, 0}},
Health: 75,
},
},
Food: []Point{},
},
[]SnakeMove{
{ID: "one", Move: MoveUp},
},
&BoardState{
Width: 3,
Height: 3,
Snakes: []Snake{
{
ID: "one",
Body: []Point{{2, 1}, {2, 0}, {1, 0}, {0, 0}, {0, 0}},
Health: 100,
},
},
Food: []Point{},
},
},
}
r := ConstrictorRuleset{}
for _, test := range tests {
nextState, err := r.CreateNextBoardState(test.prevState, test.moves)
require.NoError(t, err)
require.Equal(t, test.expectedState, nextState)
}
}