tests for gui

Author: RubikNube

cmd/game/gui_test.go

@@ -0,0 +1,134 @@
+package game
+
+import (
+	"bytes"
+	"fmt"
+	"strings"
+	"testing"
+)
+
+// Minimal GUI struct and constructor for demonstration.
+// Replace with your actual implementation.
+type GUI struct {
+	CurrentPlayer string
+}
+
+func NewGUI() *GUI {
+	return &GUI{CurrentPlayer: "Black"}
+}
+
+func (g *GUI) SwitchPlayer() {
+	if g.CurrentPlayer == "Black" {
+		g.CurrentPlayer = "White"
+	} else {
+		g.CurrentPlayer = "Black"
+	}
+}
+
+func TestGuiInitialState(t *testing.T) {
+	gui := NewGUI()
+	if gui.CurrentPlayer != "Black" {
+		t.Errorf("Expected initial player to be Black, got %v", gui.CurrentPlayer)
+	}
+}
+
+func TestGuiSwitchPlayer(t *testing.T) {
+	gui := NewGUI()
+	gui.SwitchPlayer()
+	if gui.CurrentPlayer != "White" {
+		t.Errorf("Expected player to switch to White, got %v", gui.CurrentPlayer)
+	}
+	gui.SwitchPlayer()
+	if gui.CurrentPlayer != "Black" {
+		t.Errorf("Expected player to switch back to Black, got %v", gui.CurrentPlayer)
+	}
+}
+
+func TestGuiMultipleSwitches(t *testing.T) {
+	gui := NewGUI()
+	for i := 0; i < 10; i++ {
+		gui.SwitchPlayer()
+	}
+	expected := "Black"
+	if 10%2 != 0 {
+		expected = "White"
+	}
+	if gui.CurrentPlayer != expected {
+		t.Errorf("After 10 switches, expected player to be %v, got %v", expected, gui.CurrentPlayer)
+	}
+}
+
+func TestGuiSwitchPlayerAlternates(t *testing.T) {
+	gui := NewGUI()
+	players := []string{"White", "Black", "White", "Black"}
+	for i, expected := range players {
+		gui.SwitchPlayer()
+		if gui.CurrentPlayer != expected {
+			t.Errorf("After %d switches, expected player to be %v, got %v", i+1, expected, gui.CurrentPlayer)
+		}
+	}
+}
+
+func TestDrawGridToWriterEmptyBoard(t *testing.T) {
+	var b Board
+	var buf bytes.Buffer
+	gui := Gui{}
+	gui.Grid = b
+	gui.DrawGridToWriter(&buf, 0, 0)
+	output := buf.String()
+
+	// Check for all column labels
+	for j := 0; j < 9; j++ {
+		colLabel := fmt.Sprintf("%c", 'A'+j)
+		if !strings.Contains(output, colLabel) {
+			t.Errorf("Expected column label %q in output", colLabel)
+		}
+	}
+
+	// Check for all row labels
+	for i := 1; i <= 9; i++ {
+		rowLabel := fmt.Sprintf("%2d", i)
+		if !strings.Contains(output, rowLabel) {
+			t.Errorf("Expected row label %q in output", rowLabel)
+		}
+	}
+
+	// Check for grid rendering characters
+	gridChars := []string{"┌", "┐", "└", "┘", "┬", "┴", "├", "┤", "┼", "│", "─"}
+	for _, ch := range gridChars {
+		if !strings.Contains(output, ch) {
+			t.Errorf("Expected grid character %q in output", ch)
+		}
+	}
+
+	// Ensure no stones are present
+	if strings.Contains(output, "\x1b[1m⚫\x1b[0m") || strings.Contains(output, "\x1b[1m⚪\x1b[0m") {
+		t.Errorf("Expected empty board to have no stones, got: %q", output)
+	}
+}
+
+func TestDrawGridToWriterWithBlackStone(t *testing.T) {
+	var b Board
+	b[0][0] = Black
+	var buf bytes.Buffer
+	gui := Gui{}
+	gui.Grid = b
+	gui.DrawGridToWriter(&buf, 0, 0)
+	output := buf.String()
+	if !strings.Contains(output, "\x1b[1m⚫\x1b[0m") {
+		t.Errorf("Expected board to contain a black stone, got: %q", output)
+	}
+}
+
+func TestDrawGridToWriterWithWhiteStone(t *testing.T) {
+	var b Board
+	b[0][0] = White
+	var buf bytes.Buffer
+	gui := Gui{}
+	gui.Grid = b
+	gui.DrawGridToWriter(&buf, 0, 0)
+	output := buf.String()
+	if !strings.Contains(output, "\x1b[1m⚪\x1b[0m") {
+		t.Errorf("Expected board to contain a white stone, got: %q", output)
+	}
+}