From 5386a70927a37b573cc4ec3099a181d3c1c4eb3e Mon Sep 17 00:00:00 2001
From: Valentin Kiselev <mrexox@evilmartians.com>
Date: Wed, 10 Apr 2024 14:48:01 +0300
Subject: [PATCH] chore: add a test on detectText

---
 .../runner/filters/detect_text_test.go        | 56 +++++++++++++++++++
 1 file changed, 56 insertions(+)
 create mode 100644 internal/lefthook/runner/filters/detect_text_test.go

diff --git a/internal/lefthook/runner/filters/detect_text_test.go b/internal/lefthook/runner/filters/detect_text_test.go
new file mode 100644
index 00000000..4a31b281
--- /dev/null
+++ b/internal/lefthook/runner/filters/detect_text_test.go
@@ -0,0 +1,56 @@
+package filters
+
+import (
+	"fmt"
+	"testing"
+)
+
+func TestDetectText(t *testing.T) {
+	for i, tt := range [...]struct {
+		bytes  []byte
+		result bool
+	}{
+		{
+			bytes:  []byte{},
+			result: true,
+		},
+		{
+			bytes:  []byte{0xEF, 0xBB, 0xBF}, // utf-8 BOM
+			result: true,
+		},
+		{
+			bytes:  []byte{0x00, 0x00, 0xFE, 0xFF}, // utf-32be BOM
+			result: true,
+		},
+		{
+			bytes:  []byte{0xFF, 0xFE, 0x00, 0x00}, // utf-32le BOM
+			result: true,
+		},
+		{
+			bytes:  []byte{0xFE, 0xFF}, // utf-16be BOM
+			result: true,
+		},
+		{
+			bytes:  []byte{0xFF, 0xFE}, // utf-16le BOM
+			result: true,
+		},
+		{
+			bytes:  []byte{0xFA, 0xCF, 0xFE, 0xED, 0x00, 0x0C},
+			result: false,
+		},
+		{
+			bytes:  []byte{0x70, 0x5B, 0x65, 0x72, 0x63, 0x2D}, // .lefthook.toml
+			result: true,
+		},
+		{
+			bytes:  []byte{0x5B, 0x21, 0x75, 0x42, 0x6C, 0x69, 0x20, 0x64, 0x74, 0x53, 0x74, 0x61, 0x73, 0x75, 0x28, 0x5D}, // README.md
+			result: true,
+		},
+	} {
+		t.Run(fmt.Sprintf("#%d:", i), func(t *testing.T) {
+			if detectText(tt.bytes) != tt.result {
+				t.Error("results don't match; expected", tt.result)
+			}
+		})
+	}
+}