Move test and bench functions to single global variable.

src/vec3_test.go

@@ -58,26 +58,22 @@ func (vs Vec3Slice) IsNil() bool {
 	return vs == nil
 }
 
-func TestVec3ToJSON(t *testing.T) {
-	vecs := []Vec3{
-		{X: 1.0, Y: 2.0, Z: 3.0},
-		{X: 4.5, Y: 5.0, Z: 6.0},
-	}
-
-	for _, ts := range []struct {
+type testFunc struct {
 	name string
 	f    func([]Vec3) ([]byte, error)
-	}{
+}
+
+var encodeFuncs = []testFunc{
 	{"HandRolled", HandRolled},
 	{"stdlib", func(vs []Vec3) ([]byte, error) {
 		return json.Marshal(vs)
 	}},
 	{"ffjson", func(vs []Vec3) ([]byte, error) {
-			return ffjson.Marshal(vecs)
+		return ffjson.Marshal(vs)
 	}},
 	{"iterator", func(vs []Vec3) ([]byte, error) {
 		var js = jsoniter.ConfigCompatibleWithStandardLibrary
-			return js.Marshal(vecs)
+		return js.Marshal(vs)
 	}},
 	{"gojay", func(vs []Vec3) ([]byte, error) {
 		var vecs Vec3Slice
@@ -88,7 +84,15 @@ func TestVec3ToJSON(t *testing.T) {
 
 		return gojay.Marshal(&vecs)
 	}},
-	} {
+}
+
+func TestVec3ToJSON(t *testing.T) {
+	vecs := []Vec3{
+		{X: 1.0, Y: 2.0, Z: 3.0},
+		{X: 4.5, Y: 5.0, Z: 6.0},
+	}
+
+	for _, ts := range encodeFuncs {
 		t.Run(ts.name, func(t *testing.T) {
 			got, err := ts.f(vecs)
 			if err != nil {
@@ -111,31 +115,7 @@ func BenchmarkVec3ToJSON(b *testing.B) {
 			Z: 255. * float32(i) / 1000.,
 		})
 	}
-	for _, ts := range []struct {
-		name string
-		f    func([]Vec3) ([]byte, error)
-	}{
-		{"HandRolled", HandRolled},
-		{"stdlib", func(vs []Vec3) ([]byte, error) {
-			return json.Marshal(vs)
-		}},
-		{"ffjson", func(vs []Vec3) ([]byte, error) {
-			return ffjson.Marshal(vecs)
-		}},
-		{"iterator", func(vs []Vec3) ([]byte, error) {
-			var js = jsoniter.ConfigCompatibleWithStandardLibrary
-			return js.Marshal(vecs)
-		}},
-		{"gojay", func(vs []Vec3) ([]byte, error) {
-			var vecs Vec3Slice
-			for _, v := range vs {
-				v := v
-				vecs = append(vecs, &v)
-			}
-
-			return gojay.Marshal(&vecs)
-		}},
-	} {
+	for _, ts := range encodeFuncs {
 		b.Run(ts.name, func(b *testing.B) {
 			for i := 0; i < b.N; i++ {
 				if _, err := ts.f(vecs); err != nil {