test(command): cover Quote escape behavior

pkg/command/escape_test.go

@@ -0,0 +1,51 @@
+package command
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+const agentInternalSSHGitClone = "agent internal ssh-git-clone"
+
+func TestQuote(t *testing.T) {
+	cases := []struct {
+		name string
+		args []string
+		want string
+	}{
+		{name: "empty returns empty", args: nil, want: ""},
+		{name: "empty slice returns empty", args: []string{}, want: ""},
+		{
+			name: "single arg passed through unquoted",
+			args: []string{"devsy-linux-amd64"},
+			want: "devsy-linux-amd64",
+		},
+		{
+			name: "single arg with spaces passed through unchanged",
+			args: []string{agentInternalSSHGitClone},
+			want: agentInternalSSHGitClone,
+		},
+		{
+			name: "multiple args are shell-quoted and joined",
+			args: []string{"agent", "internal", "ssh-git-clone"},
+			want: agentInternalSSHGitClone,
+		},
+		{
+			name: "arg needing escaping is single-quoted",
+			args: []string{"agent", "--key-file=/tmp/my key"},
+			want: "agent '--key-file=/tmp/my key'",
+		},
+		{
+			name: "embedded single quote is escaped",
+			args: []string{"echo", "it's"},
+			want: "echo 'it'\"'\"'s'",
+		},
+	}
+
+	for _, tc := range cases {
+		t.Run(tc.name, func(t *testing.T) {
+			assert.Equal(t, tc.want, Quote(tc.args))
+		})
+	}
+}