chore: Refactor and reorganize file directories and tests

- Fix file path in test case for `TestMaskCodeBlocks` in `source/utils/strings_test.go`
- Rename `testing/assets/code1.md` to `source/utils/fixtures/code1.md`
- Add `result` to the list of ignored files in `.gitignore`

.gitignore

@@ -522,3 +522,4 @@ devenv.local.nix
 .pre-commit-config.yaml
 
 /.build/
+result

source/utils/strings_test.go

@@ -18,7 +18,7 @@ func TestMaskCodeBlocks(t *testing.T) {
 		count    int
 		expected int
 	}{
-		{"/testing/assets/code1.md", "code1.md", 3, 9},
+		{"fixtures/code1.md", "code1.md", 3, 9},
 	}
 
 	for _, table := range tables {
@@ -26,12 +26,14 @@ func TestMaskCodeBlocks(t *testing.T) {
 		//p, _ := os.Getwd()
 		_, p, _, _ := runtime.Caller(0)
 		//		p = filepath.Dir(p) // go to parent directory
-		p = filepath.Dir(p) // go to parent directory
-		p = filepath.Dir(p) // go to parent directory
+		//p = filepath.Dir(p) // go to parent directory
+		//p = filepath.Dir(p) // go to parent directory
 		p = filepath.Dir(p) // go to parent directory
 		p = filepath.Join(p, table.input)
 
 		fmt.Println(p)
+		fmt.Println(os.Getwd())
+		fmt.Println(filepath.Dir(p))
 
 		code, err := os.ReadFile(p)
 		if err != nil {