Basic test for ebpf added

GetRuntimeAddresses/ebpf/ebpf_test.go

@@ -0,0 +1,73 @@
+package ebpf
+
+import (
+	"testing"
+)
+
+func TestBPF(t *testing.T) {
+	var mfd MapFD
+
+	const beef = 0xbeef0000
+	const dead = 0xdead0000
+
+	t.Run("CreateMap", func(t *testing.T) {
+		var err error
+		mfd, err = CreateMap()
+		if err != nil {
+			t.Fatal(err)
+		}
+	})
+
+	var count = 64
+
+	t.Run("Add", func(t *testing.T) {
+		for i := 1; i <= count; i++ {
+			err := mfd.Add(i, uint64(beef+i))
+			if err != nil {
+				t.Fatal(err)
+			}
+		}
+	})
+
+	t.Run("GetMap1", func(t *testing.T) {
+		m, err := mfd.GetMap()
+		if err != nil {
+			t.Fatal(err)
+		} else if len(m) != count {
+			t.Fatalf("expected len(m) == %d, but got %d: %v", count, len(m), m)
+		}
+		for i := 1; i <= count; i++ {
+			if v, ok := m[i]; !ok {
+				t.Fatalf("value for index %d not found in map", i)
+			} else if v != uint64(beef+i) {
+				t.Fatalf("value for index %d should be %x but found %x", i, beef+i, v)
+			}
+		}
+	})
+
+	t.Run("Set", func(t *testing.T) {
+		for i := 1; i <= count; i++ {
+			err := mfd.Set(i, uint64(dead+i))
+			if err != nil {
+				t.Fatal(err)
+			}
+		}
+	})
+
+	t.Run("GetMap2", func(t *testing.T) {
+		m, err := mfd.GetMap()
+
+		if err != nil {
+			t.Fatal(err)
+		} else if len(m) != count {
+			t.Fatalf("expected len(m) == %d, but got %d: %v", count, len(m), m)
+		}
+		for i := 1; i <= count; i++ {
+			if v, ok := m[i]; !ok {
+				t.Fatalf("value for index %d not found in map", i)
+			} else if v != uint64(dead+i) {
+				t.Fatalf("value for index %d should be %x but found %x", i, dead+i, v)
+			}
+		}
+	})
+}