1 files changed, 39 insertions, 0 deletions
diff --git a/pkg/common/cartesian_test.go b/pkg/common/cartesian_test.go
new file mode 100644
index 0000000..c49de06
--- /dev/null
+++ b/pkg/common/cartesian_test.go
@@ -0,0 +1,39 @@
+package common
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestCartesianProduct(t *testing.T) {
+	assert := assert.New(t)
+	input := map[string][]interface{}{
+		"foo": {1, 2, 3, 4},
+		"bar": {"a", "b", "c"},
+		"baz": {false, true},
+	}
+
+	output := CartesianProduct(input)
+	assert.Len(output, 24)
+
+	for _, v := range output {
+		assert.Len(v, 3)
+
+		assert.Contains(v, "foo")
+		assert.Contains(v, "bar")
+		assert.Contains(v, "baz")
+	}
+
+	input = map[string][]interface{}{
+		"foo": {1, 2, 3, 4},
+		"bar": {},
+		"baz": {false, true},
+	}
+	output = CartesianProduct(input)
+	assert.Len(output, 0)
+
+	input = map[string][]interface{}{}
+	output = CartesianProduct(input)
+	assert.Len(output, 0)
+}