pkg/csource, pkg/repro: filter out invalid options combinations

We currently have 2 invalid options combinations:
 - collide without threads
 - procs>1 without repeat
They are invalid in the sense that result of csource.Write
is the same for them. Filter out these combinations.
This cuts csource testing time in half and reduces repro minimization time.

1 files changed, 8 insertions, 2 deletions

diff --git a/pkg/csource/csource_test.go b/pkg/csource/csource_test.go
index dc703d37d..ae34a9499 100644
--- a/pkg/csource/csource_test.go
+++ b/pkg/csource/csource_test.go
@@ -51,7 +51,13 @@ func enumerateField(opt Options, field int) []Options {
 	} else {
 		panic(fmt.Sprintf("field '%v' is not boolean", fldName))
 	}
-	return opts
+	var checked []Options
+	for _, opt := range opts {
+		if err := opt.Check(); err == nil {
+			checked = append(checked, opt)
+		}
+	}
+	return checked
 }
 
 func allOptionsSingle() []Options {
@@ -102,7 +108,7 @@ func TestOptions(t *testing.T) {
 			permutations = append(permutations, allPermutations[r.Intn(len(allPermutations))])
 		}
 	} else {
-		permutations = append(permutations, allPermutations...)
+		permutations = allPermutations
 	}
 	for i, opts := range permutations {
 		t.Run(fmt.Sprintf("%v", i), func(t *testing.T) {