prog: parallelize tests

Parallelize more tests and reduce number of iterations
in random tests under race detector.

1 files changed, 16 insertions, 7 deletions

diff --git a/prog/export_test.go b/prog/export_test.go
index 015d4f319..b6247c850 100644
--- a/prog/export_test.go
+++ b/prog/export_test.go
@@ -36,13 +36,20 @@ func randSource(t *testing.T) rand.Source {
 	return rand.NewSource(seed)
 }
 
-func initRandomTargetTest(t *testing.T, os, arch string) (*Target, rand.Source, int) {
-	target := initTargetTest(t, os, arch)
+func iterCount() int {
 	iters := 10000
 	if testing.Short() {
 		iters = 100
 	}
-	return target, randSource(t), iters
+	if raceEnabled {
+		iters /= 10
+	}
+	return iters
+}
+
+func initRandomTargetTest(t *testing.T, os, arch string) (*Target, rand.Source, int) {
+	target := initTargetTest(t, os, arch)
+	return target, randSource(t), iterCount()
 }
 
 func initTest(t *testing.T) (*Target, rand.Source, int) {
@@ -50,6 +57,7 @@ func initTest(t *testing.T) (*Target, rand.Source, int) {
 }
 
 func testEachTarget(t *testing.T, fn func(t *testing.T, target *Target)) {
+	t.Parallel()
 	for _, target := range AllTargets() {
 		target := target
 		t.Run(fmt.Sprintf("%v/%v", target.OS, target.Arch), func(t *testing.T) {
@@ -60,12 +68,13 @@ func testEachTarget(t *testing.T, fn func(t *testing.T, target *Target)) {
 }
 
 func testEachTargetRandom(t *testing.T, fn func(t *testing.T, target *Target, rs rand.Source, iters int)) {
-	iters := 10000
-	if testing.Short() {
-		iters = 100
-	}
+	t.Parallel()
 	targets := AllTargets()
+	iters := iterCount()
 	iters /= len(targets)
+	if iters < 3 {
+		iters = 3
+	}
 	rs0 := randSource(t)
 	for _, target := range targets {
 		target := target