Clean up the tests a little bit

Define function for asserting float64 and string types.

gupta_test.go

@@ -10,9 +10,7 @@ func TestHello(t *testing.T) {
 	want := fmt.Sprintf("Welcome to gupta version %s", version)
 	name := "welcome string"
 
-	if got != want {
-		t.Errorf("got %s %s want %s", name, got, want)
-	}
+	assertString(t, name, want, got)
 }
 
 func TestCPUStat(t *testing.T) {
@@ -34,11 +32,8 @@ func TestCPUStat(t *testing.T) {
 
 		got := report.CPUUsage.CPUUsage()
 		want := float64(68.00)
-		name := "CPULoad"
 
-		if got != want {
-			t.Errorf("got %s %.2f want %.2f", name, got, want)
-		}
+		assertFloat64(t, "CPULoad", got, want)
 
 	})
 
@@ -47,16 +42,24 @@ func TestCPUStat(t *testing.T) {
 			"cpu 657136 84 232952 4025695 2874 0 40555 0 0 0")
 
 		got := fmt.Sprintf("%.2f", cpustat.CPUUsage())
-		want := "55.33"
-		name := "CPUUsate"
-		if got != want {
-			t.Errorf("got  %s %s want %s", name, got, want)
-		}
 
+		assertString(t, "CPUUsage", got, "55.33")
 	})
 }
 
-func assert(t *testing.T, name string, got, want uint64) {
+func assertString(t *testing.T, name, got, want string) {
+	if got != want {
+		t.Errorf("got  %s %s want %s", name, got, want)
+	}
+}
+
+func assertFloat64(t *testing.T, name string, got, want float64) {
+	if got != want {
+		t.Errorf("got  %s %.2f want %.2f", name, got, want)
+	}
+}
+
+func assertInt64(t *testing.T, name string, got, want uint64) {
 	if got != want {
 		t.Errorf("got %s %v want %v", name, got, want)
 	}