feat: adds tests for Ports in exporter.go

internal/manifests/collector/parser/exporter/exporter_test.go

@@ -0,0 +1,66 @@
+package exporter
+
+import (
+	"reflect"
+	"testing"
+
+	v1 "k8s.io/api/core/v1"
+	"k8s.io/apimachinery/pkg/util/intstr"
+)
+
+func TestPorts(t *testing.T) {
+	tests := []struct {
+		testName string
+		parser   *PrometheusExporterParser
+		want     []v1.ServicePort
+	}{
+		{
+			testName: "Valid Configuration",
+			parser: &PrometheusExporterParser{
+				name: "test-exporter",
+				config: map[interface{}]interface{}{
+					"endpoint": "http://myprometheus.io:9090",
+				},
+			},
+			want: []v1.ServicePort{
+				{
+					Name: "test-exporter",
+					Port: 9091,
+				},
+			},
+		},
+		{
+			testName: "Empty Configuration",
+			parser: &PrometheusExporterParser{
+				name:   "test-exporter",
+				config: nil, // Simulate no configuration provided
+			},
+			want: []v1.ServicePort{
+				{
+					Name:       "test-exporter",
+					Port:       defaultPrometheusPort,
+					TargetPort: intstr.FromInt(int(defaultPrometheusPort)),
+					Protocol:   v1.ProtocolTCP,
+				},
+			},
+		},
+		{
+			testName: "Invalid Endpoint No Port",
+			parser: &PrometheusExporterParser{
+				name: "test-exporter",
+				config: map[interface{}]interface{}{
+					"endpoint": "invalidendpoint",
+				},
+			},
+			want: []v1.ServicePort{},
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.testName, func(t *testing.T) {
+			if got, _ := tt.parser.Ports(); !reflect.DeepEqual(got, tt.want) {
+				t.Errorf("Ports(%v, = %v, want %v", tt.parser, got, tt.want)
+			}
+		})
+	}
+}