refactor: split flat internal/ module into modules-per-cmd (#64)

internal/testutils/utils.go

@@ -0,0 +1,20 @@
+package testutils
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/require"
+)
+
+func MatchLines(t *testing.T, expectedLines []string, lines []string) {
+	var nonEmptyLines []string
+	for _, l := range lines {
+		if l != "" {
+			nonEmptyLines = append(nonEmptyLines, l)
+		}
+	}
+	require.Equal(t, len(expectedLines), len(nonEmptyLines))
+	for i, expected := range expectedLines {
+		require.Regexp(t, expected, nonEmptyLines[i])
+	}
+}