diff821 B

Unified Diff - CRLF Line Endings Throughout

Byte-for-byte the same diff as its LF twin except that every line ends CR LF, which is what a diff produced or saved on Windows looks like. Readers that compare a hunk line against expected content without stripping the CR find that no line matches.

Encoding detection Visual diff / regression Editor testing

Preview — first 27 linesdiff

--- a/internal/ledger/apply.go	2026-03-02 09:14:03.000000000 +0000
+++ b/internal/ledger/apply.go	2026-03-02 10:41:55.000000000 +0000
@@ -1,14 +1,21 @@
 package ledger
 
-import "errors"
+import (
+	"errors"
+	"fmt"
+)
 
 // ErrShortBalance is returned when a posting would drive the balance negative.
 var ErrShortBalance = errors.New("ledger: insufficient balance")
 
 // Apply posts one delta against the running balance and returns the new total.
+// A zero delta is a no-op and never reports an error.
 func Apply(balance, delta int64) (int64, error) {
+	if delta == 0 {
+		return balance, nil
+	}
 	if balance+delta < 0 {
-		return balance, ErrShortBalance
+		return balance, fmt.Errorf("%w: balance %d, requested %d", ErrShortBalance, balance, delta)
 	}
 	return balance + delta, nil
 }

Specifications

Seed: 20260807
Diff Format: unified
Files: 1
Line Endings: CRLF
Encoding: UTF-8
Twin: LF

Testing contract

Expected to pass

Scenario: Apply a CRLF-terminated patch file to an LF-terminated working tree.
Expected result: Applying succeeds after the CR is stripped from the patch's own line endings; the patched file keeps LF endings and matches the LF twin's result exactly.

What is a .diff file?

A .diff file records the difference between two versions of one or more text files. The unified format — the default almost everywhere — names the old and new files on `---` and `+++` lines, then lists hunks introduced by `@@ -old,count +new,count @@` in which context lines are unprefixed and changed lines are prefixed with `-` or `+`. Older context and normal diff formats exist but are rarely produced today.

How to use this file

Use an example .diff file to test diff parsers, syntax highlighters, and merge tooling — verifying hunk-offset arithmetic, correct handling of context lines that begin with a space, and behaviour on files whose changes include trailing-whitespace or line-ending differences.

How to use this file for testing

“Unified Diff - CRLF Line Endings Throughout” is a deterministic Novus Examples fixture for Encoding detection, Visual diff / regression, Editor testing. UTF-8, UTF-8-BOM, UTF-16, and Latin-1 files with documented encodings and line endings for testing charset detection.

Documented properties for this file: seed 20260807 · UTF-8 · CRLF. Compare results against paired or grouped companions on this page when present (clean↔damaged, searchable↔scanned, or format twins) so scores stay reproducible across runs.

Download the file once, keep the path stable in CI or local scripts, and treat the spec table as the contract: dimensions, seeds, field lists, and roles are intentional. Corrupt or invalid samples are labelled as such — expect parsers to fail loudly rather than silently accept them.

Diff and patch fixtures name their target paths and the exact edge case they exercise — rename, mode change, binary hunk, CRLF↔LF, or missing trailing newline. Apply or render them against the documented before-state; every author, path, and hash is fictional.