feat: add Windows platform support

internal/config/ssh_test.go

@@ -0,0 +1,73 @@
+package config
+
+import (
+	"path/filepath"
+	"runtime"
+	"strings"
+	"testing"
+)
+
+func TestGetDefaultSSHConfigPath(t *testing.T) {
+	tests := []struct {
+		name     string
+		goos     string
+		expected string
+	}{
+		{"Linux", "linux", ".ssh/config"},
+		{"macOS", "darwin", ".ssh/config"},
+		{"Windows", "windows", ".ssh/config"},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			// Save original GOOS
+			originalGOOS := runtime.GOOS
+			defer func() {
+				// Note: We can't actually change runtime.GOOS at runtime
+				// This test verifies the function logic with the current OS
+				_ = originalGOOS
+			}()
+
+			configPath, err := GetDefaultSSHConfigPath()
+			if err != nil {
+				t.Fatalf("GetDefaultSSHConfigPath() error = %v", err)
+			}
+
+			if !strings.HasSuffix(configPath, tt.expected) {
+				t.Errorf("Expected path to end with %q, got %q", tt.expected, configPath)
+			}
+
+			// Verify the path uses the correct separator for current OS
+			expectedSeparator := string(filepath.Separator)
+			if !strings.Contains(configPath, expectedSeparator) && len(configPath) > len(tt.expected) {
+				t.Errorf("Path should use OS-specific separator %q, got %q", expectedSeparator, configPath)
+			}
+		})
+	}
+}
+
+func TestGetSSHDirectory(t *testing.T) {
+	sshDir, err := GetSSHDirectory()
+	if err != nil {
+		t.Fatalf("GetSSHDirectory() error = %v", err)
+	}
+
+	if !strings.HasSuffix(sshDir, ".ssh") {
+		t.Errorf("Expected directory to end with .ssh, got %q", sshDir)
+	}
+
+	// Verify the path uses the correct separator for current OS
+	expectedSeparator := string(filepath.Separator)
+	if !strings.Contains(sshDir, expectedSeparator) && len(sshDir) > 4 {
+		t.Errorf("Path should use OS-specific separator %q, got %q", expectedSeparator, sshDir)
+	}
+}
+
+func TestEnsureSSHDirectory(t *testing.T) {
+	// This test just ensures the function doesn't panic
+	// and returns without error when .ssh directory already exists
+	err := ensureSSHDirectory()
+	if err != nil {
+		t.Fatalf("ensureSSHDirectory() error = %v", err)
+	}
+}