diff --git a/.woodpecker/test.yaml b/.woodpecker/test.yaml
new file mode 100644
index 0000000..a0a7509
--- /dev/null
+++ b/.woodpecker/test.yaml
@@ -0,0 +1,9 @@
+---
+when:
+  event: pull_request
+
+steps:
+  golang:
+    image: golang:1.23.1
+    commands:
+      - go test -v ./...
diff --git a/internal/apps/labtime/app_test.go b/internal/apps/labtime/app_test.go
new file mode 100644
index 0000000..52f5708
--- /dev/null
+++ b/internal/apps/labtime/app_test.go
@@ -0,0 +1,31 @@
+package labtime
+
+import (
+	"log"
+	"os"
+	"testing"
+)
+
+func TestNewApp(t *testing.T) {
+	flag := &FlagConfig{
+		configFile: "../../../configs/example-config.yaml", // we shouldn't rely on the actual file
+	}
+	logger := log.New(os.Stdout, "", 0) // silent?
+
+	app, err := NewApp(flag, logger)
+	if err != nil {
+		t.Fatalf("unexpected error: %v", err)
+	}
+
+	if app.logger != logger {
+		t.Errorf("expected logger to be set")
+	}
+
+	if app.scheduler == nil {
+		t.Errorf("expected scheduler to be initialized")
+	}
+
+	if app.prometheusHTTPServer == nil {
+		t.Errorf("expected prometheusHTTPServer to be initialized")
+	}
+}
diff --git a/internal/apps/labtime/flag_test.go b/internal/apps/labtime/flag_test.go
new file mode 100644
index 0000000..9e73848
--- /dev/null
+++ b/internal/apps/labtime/flag_test.go
@@ -0,0 +1,45 @@
+package labtime
+
+import (
+	"flag"
+	"os"
+	"testing"
+)
+
+func TestLoadFlag(t *testing.T) {
+	tests := []struct {
+		name         string
+		args         []string
+		expectedFile string
+	}{
+		{
+			name:         "No flag provided",
+			args:         []string{},
+			expectedFile: defaultConfigFile,
+		},
+		{
+			name:         "Flag provided",
+			args:         []string{"-config", "custom.yaml"},
+			expectedFile: "custom.yaml",
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			// Save and restore the original os.Args
+			oldArgs := os.Args
+			defer func() { os.Args = oldArgs }()
+
+			// Make sure we are using a clean flag set
+			flag.CommandLine = flag.NewFlagSet(os.Args[0], flag.ExitOnError)
+
+			os.Args = append([]string{"cmd"}, tt.args...)
+
+			cfg := LoadFlag()
+
+			if cfg.configFile != tt.expectedFile {
+				t.Errorf("got %s, want %s", cfg.configFile, tt.expectedFile)
+			}
+		})
+	}
+}
diff --git a/internal/monitors/httpmonitor_test.go b/internal/monitors/httpmonitor_test.go
new file mode 100644
index 0000000..c89e925
--- /dev/null
+++ b/internal/monitors/httpmonitor_test.go
@@ -0,0 +1,16 @@
+package monitors
+
+import "testing"
+
+func TestHTTPMonitor_ID(t *testing.T) {
+	monitor := &HTTPMonitor{
+		Label: "example",
+	}
+
+	expectedID := "example"
+	actualID := monitor.ID()
+
+	if actualID != expectedID {
+		t.Errorf("expected ID to be %s, but got %s", expectedID, actualID)
+	}
+}