Function createTestIndexFile

internal/users/index_test.go:187–200

createTestIndexFile creates an index file with a fixed-width header and multiple user records. It uses the UserIndex receiver method formatFixedHeader so that the header is exactly 100 bytes long.

(t *testing.T, filename string)

// createTestIndexFile creates an index file with a fixed-width header and multiple user records.
// It uses the UserIndex receiver method formatFixedHeader so that the header is exactly 100 bytes long.
func createTestIndexFile(t *testing.T, filename string) *UserIndex {

	// Create an index instance for the test file.
	idx := &UserIndex{Filename: filename}
	idx.Create()

	// Prepare records: each iteration writes two records.
	for i := 1; i < 100; i++ {
		idx.AddUser(i*10, fmt.Sprintf(`alice_%d`, i))
		idx.AddUser(1000000+(i*10), fmt.Sprintf(`bob_%d`, i))
	}

	return idx
}

// TestSearchIndexByUsername tests the file-based search by creating a test index file
// and then verifying that lookups for "alice" and "bob" succeed while a lookup for a missing user ("charlie") fails.