From f6546e718626c0af300c7b3034c6dbd2355d0f19 Mon Sep 17 00:00:00 2001
From: Dan Buch <daniel.buch@gmail.com>
Date: Sun, 9 Dec 2012 00:22:10 -0500
Subject: [PATCH] More tests, including finally getting into implementation of
 real reqs

---
 conway/go/conway_test.go  | 67 +++++++++++++++++++++++++++++++--------
 conway/go/game_of_life.go | 28 +++++++++-------
 2 files changed, 70 insertions(+), 25 deletions(-)

diff --git a/conway/go/conway_test.go b/conway/go/conway_test.go
index 25e3c3a..9fd2f6b 100644
--- a/conway/go/conway_test.go
+++ b/conway/go/conway_test.go
@@ -16,6 +16,7 @@ func init() {
 	tsis.Set(1, 0, 1)
 	tsis.Set(0, 1, 1)
 	tsis.Set(1, 1, 1)
+	tsis.Set(2, 2, 1)
 }
 
 func TestNewGameOfLifeHasCorrectDimensions(t *testing.T) {
@@ -25,24 +26,62 @@ func TestNewGameOfLifeHasCorrectDimensions(t *testing.T) {
 	}
 }
 
+func TestNewGameOfLifeHasGameStateOfSameDimensions(t *testing.T) {
+	game := NewGameOfLife(16, 16)
+
+	if len(game.State.Rows) < 16 {
+		t.Fail()
+	}
+
+	if len(game.State.Rows[0].Cols) < 16 {
+		t.Fail()
+	}
+}
+
+func TestGameStateCanImportState(t *testing.T) {
+	game := NewGameOfLife(16, 16)
+	err := game.State.ImportState(TEST_SIMPLE_INITIAL_STATE)
+	if err != nil {
+		t.Fail()
+	}
+
+	if value, err := game.State.Get(0, 0); err != nil || value != 1 {
+		t.Fail()
+	}
+
+	if value, err := game.State.Get(1, 0); err != nil || value != 1 {
+		t.Fail()
+	}
+
+	if value, err := game.State.Get(0, 1); err != nil || value != 1 {
+		t.Fail()
+	}
+
+	if value, err := game.State.Get(1, 1); err != nil || value != 1 {
+		t.Fail()
+	}
+
+	if value, err := game.State.Get(2, 2); err != nil || value != 1 {
+		t.Fail()
+	}
+}
+
 func TestLiveCellWithFewerThanTwoLiveNeighborsDies(t *testing.T) {
-	state := NewGameState(16, 16)
-	state.ImportState(TEST_SIMPLE_INITIAL_STATE)
-
-	if value, err := state.Get(0, 0); err != nil || value != 1 {
-		t.Fail()
+	game := NewGameOfLife(16, 16)
+	err := game.State.ImportState(TEST_SIMPLE_INITIAL_STATE)
+	if err != nil {
+		t.Error(err)
 	}
 
-	if value, err := state.Get(1, 0); err != nil || value != 1 {
-		t.Fail()
+	game.EvaluateGeneration()
+
+	value, err := game.State.Get(2, 2)
+	if err != nil {
+		t.Error(err)
 	}
 
-	if value, err := state.Get(0, 1); err != nil || value != 1 {
-		t.Fail()
-	}
-
-	if value, err := state.Get(1, 1); err != nil || value != 1 {
-		t.Fail()
+	if value != 0 {
+		t.Errorf("%v != 0", value)
 	}
 }
 
@@ -50,7 +89,7 @@ func TestNewGameStatesAreAllDead(t *testing.T) {
 	state := NewGameState(4, 4)
 	for x := 0; x < 3; x++ {
 		for y := 0; y < 3; y++ {
-			if state.Rows[y].Cols[x] != 0 {
+			if value, err := state.Get(x, y); err != nil || value != 0 {
 				t.Fail()
 			}
 		}
diff --git a/conway/go/game_of_life.go b/conway/go/game_of_life.go
index e60100a..2f75760 100644
--- a/conway/go/game_of_life.go
+++ b/conway/go/game_of_life.go
@@ -7,20 +7,21 @@ import (
 type GameOfLife struct {
 	Height int
 	Width  int
+	State  *GameState
 }
 
-type GameGridRow struct {
+type gameGridRow struct {
 	Cols []int
 }
 
 type GameState struct {
-	Rows []*GameGridRow
+	Rows []*gameGridRow
 }
 
 func NewGameState(height, width int) *GameState {
 	state := &GameState{}
 	for i := 0; i < height; i++ {
-		row := &GameGridRow{}
+		row := &gameGridRow{}
 		for j := 0; j < width; j++ {
 			row.Cols = append(row.Cols, 0)
 		}
@@ -29,7 +30,7 @@ func NewGameState(height, width int) *GameState {
 	return state
 }
 
-func (state *GameState) GetRow(y int) (*GameGridRow, error) {
+func (state *GameState) GetRow(y int) (*gameGridRow, error) {
 	if len(state.Rows) < y+1 {
 		return nil, errors.New("y coordinate is out of bounds!")
 	}
@@ -72,13 +73,6 @@ func (state *GameState) Deaden(x, y int) error {
 	return state.Set(x, y, 0)
 }
 
-func NewGameOfLife(height, width int) *GameOfLife {
-	return &GameOfLife{
-		Height: height,
-		Width:  width,
-	}
-}
-
 func (state *GameState) ImportState(other *GameState) (err error) {
 	for y, row := range other.Rows {
 		for x, cell := range row.Cols {
@@ -89,3 +83,15 @@ func (state *GameState) ImportState(other *GameState) (err error) {
 	}
 	return nil
 }
+
+func NewGameOfLife(height, width int) *GameOfLife {
+	return &GameOfLife{
+		Height: height,
+		Width:  width,
+		State:  NewGameState(height, width),
+	}
+}
+
+func (game *GameOfLife) EvaluateGeneration() {
+	return
+}