test sweep: cover BufferRange family (T-91)

Adds test/terminal/buffer/range_test.dart — 38 unit tests covering
the small pure-Dart files in lib/src/terminal/src/core/buffer/:

- cell_offset.dart       23 / 23  (was 0 / 23)
- range.dart             13 / 13  (was 0 / 13)
- segment.dart           13 / 13  (was 0 / 13)
- range_line.dart        30 / 30  (was 0 / 30)
- range_block.dart       48 / 48  (was 0 / 48)

Total project line coverage 34.90% → 36.39%; coverage_floor in
pubspec.yaml bumped 34 → 36 in lockstep.

Tests exercise the abstract BufferRange operator==/hashCode/toString
via a local _StubRange (BufferRangeLine and BufferRangeBlock both
override those, so the base versions are otherwise unreachable —
worth a stub rather than carving the lines out of coverage). The
denormalized-input branches in Block contain/toSegments/extend get
explicit cases too.

Pure Dart, no Flutter dependency — uses package:test/test.dart and
runs in <100ms.

First batch under T-91; line.dart and buffer.dart land in subsequent
commits with their own floor bumps.

Co-Authored-By: Claude <noreply@anthropic.com>
This commit is contained in:
2026-05-06 22:55:15 +02:00
co-authored by Claude
parent f204e91f29
commit eb32396bd4
3 changed files with 493 additions and 108 deletions
+138 -107
View File
@@ -1,5 +1,5 @@
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"status": "open",
"file_path": "decisions/questions-architecture.md",
"synced_at": "2026-05-06 20:36:42"
"synced_at": "2026-05-06 20:54:33"
},
{
"id": "Q-8",
@@ -721,7 +721,7 @@
"title": "Extension API shape — widgets, subcommands, both?",
"status": "open",
"file_path": "decisions/questions-extensions.md",
"synced_at": "2026-05-06 20:36:42"
"synced_at": "2026-05-06 20:54:33"
},
{
"id": "Q-9",
@@ -730,7 +730,7 @@
"title": "Lua runtime vendoring",
"status": "open",
"file_path": "decisions/questions-extensions.md",
"synced_at": "2026-05-06 20:36:42"
"synced_at": "2026-05-06 20:54:33"
},
{
"id": "Q-10",
@@ -739,7 +739,7 @@
"title": "Extension manifest `schema_version:`",
"status": "open",
"file_path": "decisions/questions-extensions.md",
"synced_at": "2026-05-06 20:36:42"
"synced_at": "2026-05-06 20:54:33"
},
{
"id": "Q-11",
@@ -748,7 +748,7 @@
"title": "Coverage gates — hard thresholds vs soft reporting",
"status": "open",
"file_path": "decisions/questions-testing.md",
"synced_at": "2026-05-06 20:36:42"
"synced_at": "2026-05-06 20:54:33"
},
{
"id": "Q-12",
@@ -757,7 +757,7 @@
"title": "Screen-reader automation (axe-core via Playwright)",
"status": "open",
"file_path": "decisions/questions-testing.md",
"synced_at": "2026-05-06 20:36:42"
"synced_at": "2026-05-06 20:54:33"
},
{
"id": "Q-13",
@@ -766,7 +766,7 @@
"title": "Web production-mode a11y",
"status": "open",
"file_path": "decisions/questions-accessibility.md",
"synced_at": "2026-05-06 20:36:42"
"synced_at": "2026-05-06 20:54:33"
},
{
"id": "Q-14",
@@ -775,7 +775,7 @@
"title": "i18n plurals / gender / date-format tooling",
"status": "open",
"file_path": "decisions/questions-accessibility.md",
"synced_at": "2026-05-06 20:36:42"
"synced_at": "2026-05-06 20:54:33"
},
{
"id": "Q-15",
@@ -784,7 +784,7 @@
"title": "Editor tab — full LSP vs tree-sitter-only highlight",
"status": "open",
"file_path": "decisions/questions-process.md",
"synced_at": "2026-05-06 20:36:42"
"synced_at": "2026-05-06 20:54:33"
},
{
"id": "Q-16",
@@ -793,7 +793,7 @@
"title": "`tree-sitter-dart` grammar maintenance",
"status": "open",
"file_path": "decisions/questions-process.md",
"synced_at": "2026-05-06 20:36:42"
"synced_at": "2026-05-06 20:54:33"
},
{
"id": "Q-17",
@@ -802,7 +802,7 @@
"title": "Icon set growth",
"status": "open",
"file_path": "decisions/questions-process.md",
"synced_at": "2026-05-06 20:36:42"
"synced_at": "2026-05-06 20:54:33"
},
{
"id": "Q-18",
@@ -811,7 +811,7 @@
"title": "Theme hot-reload in release builds",
"status": "open",
"file_path": "decisions/questions-process.md",
"synced_at": "2026-05-06 20:36:42"
"synced_at": "2026-05-06 20:54:33"
},
{
"id": "Q-19",
@@ -820,7 +820,7 @@
"title": "(withdrawn)",
"status": "resolved",
"file_path": "decisions/questions-process.md",
"synced_at": "2026-05-06 20:36:42"
"synced_at": "2026-05-06 20:54:33"
},
{
"id": "Q-20",
@@ -829,7 +829,7 @@
"title": "Kernel DB service — namespaced SQL access?",
"status": "open",
"file_path": "decisions/questions-process.md",
"synced_at": "2026-05-06 20:36:42"
"synced_at": "2026-05-06 20:54:33"
},
{
"id": "Q-21",
@@ -838,7 +838,7 @@
"title": "Pql absorbs planning vs keeps separate",
"status": "open",
"file_path": "decisions/questions-architecture.md",
"synced_at": "2026-05-06 20:36:42"
"synced_at": "2026-05-06 20:54:33"
},
{
"id": "Q-22",
@@ -847,7 +847,7 @@
"title": "Ticket persistence strategy",
"status": "open",
"file_path": "decisions/questions-architecture.md",
"synced_at": "2026-05-06 20:36:42"
"synced_at": "2026-05-06 20:54:33"
},
{
"id": "Q-23",
@@ -856,7 +856,7 @@
"title": "SSH-remote development — run clide against a remote workspace",
"status": "open",
"file_path": "decisions/questions-architecture.md",
"synced_at": "2026-05-06 20:36:42"
"synced_at": "2026-05-06 20:54:33"
},
{
"id": "Q-25",
@@ -865,7 +865,7 @@
"title": "Body text face — mono everywhere vs Josefin Sans UI + mono code",
"status": "open",
"file_path": "decisions/questions-architecture.md",
"synced_at": "2026-05-06 20:36:42"
"synced_at": "2026-05-06 20:54:33"
},
{
"id": "Q-26",
@@ -874,7 +874,7 @@
"title": "Small screen layout (\u003c 1000px)",
"status": "open",
"file_path": "decisions/questions-architecture.md",
"synced_at": "2026-05-06 20:36:42"
"synced_at": "2026-05-06 20:54:33"
},
{
"id": "Q-27",
@@ -883,7 +883,7 @@
"title": "Two-editor split",
"status": "open",
"file_path": "decisions/questions-architecture.md",
"synced_at": "2026-05-06 20:36:42"
"synced_at": "2026-05-06 20:54:33"
},
{
"id": "Q-28",
@@ -892,7 +892,7 @@
"title": "Terminal strip scope — shell only or logs/errors/tests",
"status": "open",
"file_path": "decisions/questions-architecture.md",
"synced_at": "2026-05-06 20:36:42"
"synced_at": "2026-05-06 20:54:33"
},
{
"id": "Q-29",
@@ -901,7 +901,7 @@
"title": "Branch picker location",
"status": "open",
"file_path": "decisions/questions-architecture.md",
"synced_at": "2026-05-06 20:36:42"
"synced_at": "2026-05-06 20:54:33"
},
{
"id": "Q-30",
@@ -910,7 +910,7 @@
"title": "Focus behavior when editor is dirty and viewer is peeked",
"status": "open",
"file_path": "decisions/questions-architecture.md",
"synced_at": "2026-05-06 20:36:42"
"synced_at": "2026-05-06 20:54:33"
},
{
"id": "Q-31",
@@ -919,7 +919,7 @@
"title": "XWayland fallback for frameless — proper Wayland protocol needed",
"status": "open",
"file_path": "decisions/questions-architecture.md",
"synced_at": "2026-05-06 20:36:42"
"synced_at": "2026-05-06 20:54:33"
},
{
"id": "R-2",
@@ -929,7 +929,7 @@
"status": "active",
"date": "2026-04-20",
"file_path": "decisions/rejected.md",
"synced_at": "2026-05-06 20:36:42"
"synced_at": "2026-05-06 20:54:33"
},
{
"id": "R-3",
@@ -939,7 +939,7 @@
"status": "active",
"date": "2026-04-21",
"file_path": "decisions/rejected.md",
"synced_at": "2026-05-06 20:36:42"
"synced_at": "2026-05-06 20:54:33"
},
{
"id": "R-4",
@@ -949,7 +949,7 @@
"status": "active",
"date": "2026-04-21",
"file_path": "decisions/rejected.md",
"synced_at": "2026-05-06 20:36:42"
"synced_at": "2026-05-06 20:54:33"
},
{
"id": "R-5",
@@ -959,7 +959,7 @@
"status": "active",
"date": "2026-04-21",
"file_path": "decisions/rejected.md",
"synced_at": "2026-05-06 20:36:42"
"synced_at": "2026-05-06 20:54:33"
},
{
"id": "R-6",
@@ -969,7 +969,7 @@
"status": "active",
"date": "2026-04-21",
"file_path": "decisions/rejected.md",
"synced_at": "2026-05-06 20:36:42"
"synced_at": "2026-05-06 20:54:33"
},
{
"id": "R-7",
@@ -979,7 +979,7 @@
"status": "active",
"date": "2026-04-21",
"file_path": "decisions/rejected.md",
"synced_at": "2026-05-06 20:36:42"
"synced_at": "2026-05-06 20:54:33"
},
{
"id": "R-8",
@@ -989,7 +989,7 @@
"status": "active",
"date": "2026-04-21",
"file_path": "decisions/rejected.md",
"synced_at": "2026-05-06 20:36:42"
"synced_at": "2026-05-06 20:54:33"
},
{
"id": "R-9",
@@ -999,7 +999,7 @@
"status": "active",
"date": "2026-04-21",
"file_path": "decisions/rejected.md",
"synced_at": "2026-05-06 20:36:42"
"synced_at": "2026-05-06 20:54:33"
},
{
"id": "R-10",
@@ -1009,7 +1009,7 @@
"status": "active",
"date": "2026-04-21",
"file_path": "decisions/rejected.md",
"synced_at": "2026-05-06 20:36:42"
"synced_at": "2026-05-06 20:54:33"
},
{
"id": "R-11",
@@ -1019,7 +1019,7 @@
"status": "active",
"date": "2026-04-21",
"file_path": "decisions/rejected.md",
"synced_at": "2026-05-06 20:36:42"
"synced_at": "2026-05-06 20:54:33"
},
{
"id": "R-12",
@@ -1029,7 +1029,7 @@
"status": "active",
"date": "2026-04-22",
"file_path": "decisions/rejected.md",
"synced_at": "2026-05-06 20:36:42"
"synced_at": "2026-05-06 20:54:33"
}
],
"decision_refs": [
@@ -2779,6 +2779,18 @@
"decision_ref": "D-66",
"created_at": "2026-05-06 20:38:14",
"updated_at": "2026-05-06 20:44:47"
},
{
"id": "T-91",
"type": "task",
"parent_id": "T-89",
"title": "test sweep: drive lib/src/terminal/ to 95%",
"description": "Second child of T-89. The dominant coverage hole — `lib/src/terminal/` is 12 / 3167 lines (0.4%), about 56% of the global gap.\n\n**Today's distribution within `lib/src/terminal/src/`:**\n\n| sub-area | hit / total | % | shape |\n|---|---|---|---|\n| `core/buffer/` | 0 / 581 | 0.0% | pure data structures |\n| `core/escape/` | 1 / 473 | 0.2% | pure parser logic |\n| `core/input/` | 4 / 292 | 1.4% | key + keytab tables |\n| `core/(root)` | 0 / 188 | 0.0% | callback wiring |\n| `core/mouse/` | 3 / 51 | 5.9% | encoder logic |\n| `ui/` | 3 / 823 | 0.4% | painters + render objects |\n| `(root)` | 0 / 471 | 0.0% | `Terminal` + `TerminalView` |\n| `utils/` | 1 / 251 | 0.4% | circular buffer etc. |\n\n**Strategy — pure logic first, then UI:**\n\n1. **`core/buffer/`** (581 lines, biggest single chunk, all pure Dart) — line/segment/cell models, scrollback math, range queries. Unit tests exercise the data structure directly.\n2. **`core/escape/`** (473 lines, pure state machine) — feed ANSI/VT byte streams in, assert the resulting buffer/cursor state. Reusable corpus from xterm.js / xterm.dart upstream is fair game.\n3. **`core/input/`** (292 lines) — key + keytab tables; assert mapping from logical key to escape bytes per terminal mode.\n4. **`core/mouse/`** (51 lines) — encoder for SGR-1006 / X11 mouse protocols. Small, fast.\n5. **`utils/`** (251 lines) — circular buffer + helpers; trivial unit tests.\n6. **`(root)`** (`terminal.dart`, `terminal_view.dart`, 471 lines) — orchestration; some unit-testable, some needs widget tests.\n7. **`ui/`** (823 lines) — painters and render objects; widget + golden tests. Hardest, most pixel-sensitive.\n\n**Acceptance:**\n- `lib/src/terminal/` line coverage ≥ 95%.\n- All tests fast (\u003c5 s for the area's test files combined; no real PTY shell-out).\n- Helper fixtures live in `test/terminal/_helpers/` if they get reused across files.\n- Per D-66, no `// ignore:` directives or analysis_options excludes added to dodge coverage.\n- `coverage_floor:` in `pubspec.yaml` is bumped in lockstep — every commit that adds covering tests bumps the floor by the measured delta (rounded down to the integer below the new percentage).\n\n**Strategy on commit cadence:**\nLand tests in batches per sub-area (one commit per `core/buffer/`, `core/escape/`, etc.). Each batch:\n- Adds tests under `test/terminal/\u003csub-area\u003e/`.\n- Re-measures coverage, bumps `coverage_floor:` to the new integer (or as high as the gate currently allows).\n- Documents in CHANGELOG under \"Changed\" (test-only changes can also fold into one CHANGELOG entry per area).\n\n**Out of scope:**\n- Refactoring `lib/src/terminal/` for testability — if a piece is genuinely untestable, surface it (don't silence it). Code under `lib/` is owned regardless of upstream attribution; refactor to make it testable rather than carving it out.\n- Branch coverage (D-66 explicitly excludes).\n- Mouse / keyboard *protocol* round-trips against real TUIs (that's T-74 and integration work).\n\n**Cross-references:** D-66 (coverage gate), T-89 (epic), T-90 (gate plumbing).\n",
"status": "in_progress",
"priority": "high",
"decision_ref": "D-66",
"created_at": "2026-05-06 20:49:47",
"updated_at": "2026-05-06 20:50:32"
}
],
"ticket_deps": null,
@@ -4398,6 +4410,25 @@
"old_value": "in_progress",
"new_value": "done",
"changed_at": "2026-05-06 20:44:47"
},
{
"ticket_id": "T-91",
"field": "parent_id",
"new_value": "T-89",
"changed_at": "2026-05-06 20:49:47"
},
{
"ticket_id": "T-91",
"field": "description",
"new_value": "Second child of T-89. The dominant coverage hole — `lib/src/terminal/` is 12 / 3167 lines (0.4%), about 56% of the global gap.\n\n**Today's distribution within `lib/src/terminal/src/`:**\n\n| sub-area | hit / total | % | shape |\n|---|---|---|---|\n| `core/buffer/` | 0 / 581 | 0.0% | pure data structures |\n| `core/escape/` | 1 / 473 | 0.2% | pure parser logic |\n| `core/input/` | 4 / 292 | 1.4% | key + keytab tables |\n| `core/(root)` | 0 / 188 | 0.0% | callback wiring |\n| `core/mouse/` | 3 / 51 | 5.9% | encoder logic |\n| `ui/` | 3 / 823 | 0.4% | painters + render objects |\n| `(root)` | 0 / 471 | 0.0% | `Terminal` + `TerminalView` |\n| `utils/` | 1 / 251 | 0.4% | circular buffer etc. |\n\n**Strategy — pure logic first, then UI:**\n\n1. **`core/buffer/`** (581 lines, biggest single chunk, all pure Dart) — line/segment/cell models, scrollback math, range queries. Unit tests exercise the data structure directly.\n2. **`core/escape/`** (473 lines, pure state machine) — feed ANSI/VT byte streams in, assert the resulting buffer/cursor state. Reusable corpus from xterm.js / xterm.dart upstream is fair game.\n3. **`core/input/`** (292 lines) — key + keytab tables; assert mapping from logical key to escape bytes per terminal mode.\n4. **`core/mouse/`** (51 lines) — encoder for SGR-1006 / X11 mouse protocols. Small, fast.\n5. **`utils/`** (251 lines) — circular buffer + helpers; trivial unit tests.\n6. **`(root)`** (`terminal.dart`, `terminal_view.dart`, 471 lines) — orchestration; some unit-testable, some needs widget tests.\n7. **`ui/`** (823 lines) — painters and render objects; widget + golden tests. Hardest, most pixel-sensitive.\n\n**Acceptance:**\n- `lib/src/terminal/` line coverage ≥ 95%.\n- All tests fast (\u003c5 s for the area's test files combined; no real PTY shell-out).\n- Helper fixtures live in `test/terminal/_helpers/` if they get reused across files.\n- Per D-66, no `// ignore:` directives or analysis_options excludes added to dodge coverage.\n- `coverage_floor:` in `pubspec.yaml` is bumped in lockstep — every commit that adds covering tests bumps the floor by the measured delta (rounded down to the integer below the new percentage).\n\n**Strategy on commit cadence:**\nLand tests in batches per sub-area (one commit per `core/buffer/`, `core/escape/`, etc.). Each batch:\n- Adds tests under `test/terminal/\u003csub-area\u003e/`.\n- Re-measures coverage, bumps `coverage_floor:` to the new integer (or as high as the gate currently allows).\n- Documents in CHANGELOG under \"Changed\" (test-only changes can also fold into one CHANGELOG entry per area).\n\n**Out of scope:**\n- Refactoring `lib/src/terminal/` for testability — if a piece is genuinely untestable, surface it (don't silence it). Code under `lib/` is owned regardless of upstream attribution; refactor to make it testable rather than carving it out.\n- Branch coverage (D-66 explicitly excludes).\n- Mouse / keyboard *protocol* round-trips against real TUIs (that's T-74 and integration work).\n\n**Cross-references:** D-66 (coverage gate), T-89 (epic), T-90 (gate plumbing).\n",
"changed_at": "2026-05-06 20:50:29"
},
{
"ticket_id": "T-91",
"field": "status",
"old_value": "backlog",
"new_value": "in_progress",
"changed_at": "2026-05-06 20:50:32"
}
]
}