chore(): increase test coverage and update dependencies

internal/hetzner/hetzneragent_test.go

@@ -1,9 +1,12 @@
 package hetzner
 
 import (
+	"strings"
 	"testing"
+	"time"
 
 	"git.uploadfilter24.eu/covidnetes/woodpecker-autoscaler/internal/config"
+	"github.com/hetznercloud/hcloud-go/hcloud"
 )
 
 func TestGenerateUserData(t *testing.T) {
@@ -54,3 +57,78 @@ runcmd:
 		t.Errorf("got:\n%v\n, wanted:\n%v", got, wanted)
 	}
 }
+
+func TestGenerateUserData_MultipleCases(t *testing.T) {
+	base := config.Config{
+		WoodpeckerGrpc:          "grpc-test.woodpecker.test.tld:443",
+		WoodpeckerLabelSelector: "uploadfilter24.eu/instance-role=WoodpeckerTest",
+		WoodpeckerAgentVersion:  "latest",
+	}
+
+	cases := []struct {
+		name         string
+		cfg          config.Config
+		agentName    string
+		agentToken   string
+		wantContains []string
+	}{
+		{
+			name:       "basic",
+			cfg:        base,
+			agentName:  "test-instance",
+			agentToken: "Geheim1!",
+			wantContains: []string{
+				"image: woodpeckerci/woodpecker-agent:latest",
+				"- WOODPECKER_AGENT_SECRET=Geheim1!",
+				"- WOODPECKER_FILTER_LABELS=uploadfilter24.eu/instance-role=WoodpeckerTest",
+				"- WOODPECKER_SERVER=grpc-test.woodpecker.test.tld:443",
+			},
+		},
+		{
+			name:       "empty token",
+			cfg:        base,
+			agentName:  "no-token",
+			agentToken: "",
+			wantContains: []string{
+				"image: woodpeckerci/woodpecker-agent:latest",
+				"- WOODPECKER_AGENT_SECRET=",
+				"- WOODPECKER_HOSTNAME=no-token",
+			},
+		},
+	}
+
+	for _, tc := range cases {
+		got, err := generateConfig(&tc.cfg, tc.agentName, tc.agentToken)
+		if err != nil {
+			t.Fatalf("%s: generateConfig returned error: %v", tc.name, err)
+		}
+		for _, want := range tc.wantContains {
+			if !strings.Contains(got, want) {
+				t.Errorf("%s: expected generated userdata to contain %q, got:\n%s", tc.name, want, got)
+			}
+		}
+	}
+}
+
+func TestCheckRuntime_MockedRefresh(t *testing.T) {
+	// Mock refreshNodeInfo to return a server with a known Created time
+	orig := refreshNodeInfo
+	defer func() { refreshNodeInfo = orig }()
+
+	created := time.Date(2020, 1, 2, 3, 4, 5, 0, time.UTC)
+	refreshNodeInfo = func(cfg *config.Config, serverID int) (*hcloud.Server, error) {
+		return &hcloud.Server{Created: created}, nil
+	}
+
+	cfg := config.Config{}
+	// Capture minute before call to avoid flakiness across minute boundary
+	minute := time.Now().Minute()
+	got, err := CheckRuntime(&cfg, &hcloud.Server{ID: 123})
+	if err != nil {
+		t.Fatalf("CheckRuntime returned error: %v", err)
+	}
+	want := created.Add(time.Duration(minute))
+	if !got.Equal(want) {
+		t.Fatalf("unexpected runtime: got %v, want %v", got, want)
+	}
+}