feat: add worker install and deploy

internal/installer/install_test.go

@@ -0,0 +1,68 @@
+package installer
+
+import (
+	"strings"
+	"testing"
+)
+
+func TestValidateURL(t *testing.T) {
+	for _, raw := range []string{"https://rsmon.ru", "http://localhost:7401"} {
+		if err := ValidateURL(raw); err != nil {
+			t.Fatalf("ValidateURL(%q): %v", raw, err)
+		}
+	}
+	for _, raw := range []string{"", "rsmon.ru", "file:///tmp/x"} {
+		if err := ValidateURL(raw); err == nil {
+			t.Fatalf("ValidateURL(%q) succeeded", raw)
+		}
+	}
+}
+
+func TestValidateToken(t *testing.T) {
+	if err := ValidateToken("token"); err != nil {
+		t.Fatal(err)
+	}
+	for _, token := range []string{"", " ", "token\nRSMON_URL=https://evil.test"} {
+		if err := ValidateToken(token); err == nil {
+			t.Fatalf("ValidateToken(%q) succeeded", token)
+		}
+	}
+}
+
+func TestEnvironment(t *testing.T) {
+	got := string(Environment("https://example.test", "secret"))
+	for _, want := range []string{"RSMON_URL=https://example.test\n", "RSMON_TOKEN=secret\n", "WORKER_HOST=127.0.0.1\n"} {
+		if !strings.Contains(got, want) {
+			t.Fatalf("environment missing %q", want)
+		}
+	}
+}
+
+func TestShellQuote(t *testing.T) {
+	if got, want := shellQuote("a'b"), `'a'\''b'`; got != want {
+		t.Fatalf("shellQuote() = %q, want %q", got, want)
+	}
+}
+
+func TestValidateImage(t *testing.T) {
+	if err := ValidateImage(DefaultImage); err != nil {
+		t.Fatal(err)
+	}
+	for _, image := range []string{"", "-bad", "image name", "image%stest", `image"test`} {
+		if err := ValidateImage(image); err == nil {
+			t.Fatalf("ValidateImage(%q) succeeded", image)
+		}
+	}
+}
+
+func TestSystemdUnits(t *testing.T) {
+	if !strings.Contains(systemdUnit, "Type=simple\nUser=root\n") || !strings.Contains(systemdUnit, "ExecStart=/usr/local/bin/rsmon-worker\n") {
+		t.Fatal("binary systemd unit is not the simple root service")
+	}
+	unit := DockerUnit(DefaultImage)
+	for _, want := range []string{"ExecStartPre=-docker rm -f rsmon-worker", "docker run --rm", DefaultImage} {
+		if !strings.Contains(unit, want) {
+			t.Fatalf("Docker systemd unit missing %q", want)
+		}
+	}
+}