From 619455fee75d13f2da63dba3e1a60062b8f819c7 Mon Sep 17 00:00:00 2001
From: Egon Elbre <egonelbre@gmail.com>
Date: Sat, 14 Mar 2020 13:38:05 +0200
Subject: [PATCH] spatial/barneshut: make tests parallel

---
 spatial/barneshut/barneshut2_test.go | 4 ++++
 spatial/barneshut/barneshut3_test.go | 4 ++++
 2 files changed, 8 insertions(+)

diff --git a/spatial/barneshut/barneshut2_test.go b/spatial/barneshut/barneshut2_test.go
index f668096d..db5917c8 100644
--- a/spatial/barneshut/barneshut2_test.go
+++ b/spatial/barneshut/barneshut2_test.go
@@ -342,6 +342,7 @@ var planeTests = []struct {
 }
 
 func TestPlane(t *testing.T) {
+	t.Parallel()
 	const tol = 1e-15
 
 	for _, test := range planeTests {
@@ -408,6 +409,7 @@ func walkPlane(t *tile, fn func(*tile)) {
 }
 
 func TestPlaneForceOn(t *testing.T) {
+	t.Parallel()
 	const (
 		size = 1000
 		tol  = 0.07
@@ -436,7 +438,9 @@ func TestPlaneForceOn(t *testing.T) {
 			continue
 		}
 		for _, theta := range []float64{0, 0.3, 0.6, 0.9} {
+			theta := theta
 			t.Run(fmt.Sprintf("%d-body/theta=%v", len(particles), theta), func(t *testing.T) {
+				t.Parallel()
 				var ssd, sd float64
 				var calls int
 				for i, p := range particles {
diff --git a/spatial/barneshut/barneshut3_test.go b/spatial/barneshut/barneshut3_test.go
index 687f7031..93df75ed 100644
--- a/spatial/barneshut/barneshut3_test.go
+++ b/spatial/barneshut/barneshut3_test.go
@@ -337,6 +337,7 @@ var volumeTests = []struct {
 }
 
 func TestVolume(t *testing.T) {
+	t.Parallel()
 	const tol = 1e-15
 
 	for _, test := range volumeTests {
@@ -405,6 +406,7 @@ func walkVolume(t *bucket, fn func(*bucket)) {
 }
 
 func TestVolumeForceOn(t *testing.T) {
+	t.Parallel()
 	const (
 		size = 1000
 		tol  = 1e-3
@@ -433,7 +435,9 @@ func TestVolumeForceOn(t *testing.T) {
 			continue
 		}
 		for _, theta := range []float64{0, 0.3, 0.6, 0.9} {
+			theta := theta
 			t.Run(fmt.Sprintf("%d-body/theta=%v", len(particles), theta), func(t *testing.T) {
+				t.Parallel()
 				var ssd, sd float64
 				var calls int
 				for i, p := range particles {