Files
Dan MilneandClaude Fable 5 6dd57e84f1 Version 0.3.0: resolver/merge/cache refactor, signing design notes
- Split the monolith into package/provider/fetch/merge/cache modules with
  the Resolver deciding install/adopt/update/merge/conflict outcomes
- Three-way merges via git merge-file/diff3 against a content-addressed
  merge-base cache; conflicts go to a .picopackage-merge sibling
- Tests for package, provider, resolver, merge, and cache
- notes.md: update UX and signing design — diff-by-default, SSH signature
  identity pinning (TOFU), key changes as a hard stop, exit-code contract
- Add CLAUDE.md; remove the pre-refactor exe/pppkg monolith and scratch files

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01EiyJC73Mz8xZyCTvCEY8qn
2026-08-13 21:18:19 +10:00

56 lines
1.4 KiB
Ruby

# frozen_string_literal: true
require "test_helper"
class TestMerge < Minitest::Test
BASE = "one\ntwo\nthree\n"
def test_a_backend_is_available
assert Picopackage::Merge.available?, "expected git or diff3 on PATH"
end
def test_non_overlapping_changes_merge_cleanly
result = Picopackage::Merge.three_way(
base: BASE,
ours: "ONE\ntwo\nthree\n",
theirs: "one\ntwo\nTHREE\n"
)
assert_predicate result, :clean?
assert_equal "ONE\ntwo\nTHREE\n", result.content
end
def test_identical_changes_on_both_sides_merge_cleanly
changed = "one\nTWO\nthree\n"
result = Picopackage::Merge.three_way(base: BASE, ours: changed, theirs: changed)
assert_predicate result, :clean?
assert_equal changed, result.content
end
def test_overlapping_changes_conflict
result = Picopackage::Merge.three_way(
base: BASE,
ours: "one\nMINE\nthree\n",
theirs: "one\nTHEIRS\nthree\n"
)
assert_predicate result, :conflict?
assert_operator result.conflicts, :>, 0
assert_includes result.content, "MINE"
assert_includes result.content, "THEIRS"
assert_includes result.content, "<<<<<<<"
end
def test_labels_appear_in_conflict_markers
result = Picopackage::Merge.three_way(
base: BASE,
ours: "one\nMINE\nthree\n",
theirs: "one\nTHEIRS\nthree\n"
)
assert_includes result.content, "local"
assert_includes result.content, "upstream"
end
end