add example for parallelTest

testing/testing_test.go

@@ -0,0 +1,20 @@
+package testing
+
+import (
+	"testing"
+)
+
+func ExampleParallelTest(t *testing.T) {
+	var isReady = func(i Instance) bool {
+		// Return true if Instance is ready to run tests.
+		// Don't block here though.
+		return true
+	}
+
+	// t is *testing.T coming from parent Test(t *testing.T)
+	ParallelTest(t, []string{"docker_image:9.6"}, isReady,
+		func(t *testing.T, i Instance) {
+			// Run your test/s ...
+			t.Fatal("...")
+		})
+}