feat: squash multiple modules to one

pipeline/pipeline_test.go

@@ -0,0 +1,21 @@
+package pipeline
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestPipe(t *testing.T) {
+	a := make(chan int, 1)
+
+	pipe := func(in int) int {
+		return in * 2
+	}
+
+	b := Pipe(a, pipe)
+	a <- 5
+	close(a)
+
+	assert.Equal(t, 10, <-b)
+}