From a41f2db807963172bd22c7b22ec51bef85ac255e Mon Sep 17 00:00:00 2001
From: ariley <ariley@alteryx.com>
Date: Sun, 19 Apr 2020 22:26:07 +0100
Subject: [PATCH] Add warning in log when no tests are run within a suite

---
 suite/suite.go | 20 ++++++++++++--------
 1 file changed, 12 insertions(+), 8 deletions(-)

diff --git a/suite/suite.go b/suite/suite.go
index cdaf9a9..fce5bfa 100644
--- a/suite/suite.go
+++ b/suite/suite.go
@@ -179,16 +179,20 @@ func Run(t *testing.T, suite TestingSuite) {
 }
 
 func runTests(t testing.TB, tests []testing.InternalTest) {
-	r, ok := t.(runner)
-	if !ok { // backwards compatibility with Go 1.6 and below
-		if !testing.RunTests(allTestsFilter, tests) {
-			t.Fail()
+	if len(tests) == 0 {
+		t.Log("warning: no tests to run")
+	} else {
+		r, ok := t.(runner)
+		if !ok { // backwards compatibility with Go 1.6 and below
+			if !testing.RunTests(allTestsFilter, tests) {
+				t.Fail()
+			}
+			return
 		}
-		return
-	}
 
-	for _, test := range tests {
-		r.Run(test.Name, test.F)
+		for _, test := range tests {
+			r.Run(test.Name, test.F)
+		}
 	}
 }