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## Summary Third PR in the stacked PR series for Issue #255 (Terminal Picker). This PR adds the `BindToTerminalCommand` class that orchestrates terminal binding with the terminal picker infrastructure from PR2. The command provides smart terminal selection: auto-bind for single terminals, picker for multiple terminals. ## Changes - Add `BindResultTypes.ts` with rich composition pattern (follows QuickPickTypes.ts pattern) - `BaseBindResult` with `outcome` discriminator - `TerminalBindDetails` / `TextEditorBindDetails` for destination-specific success info - `BindResult<TDetails>` generic union type for type-safe bind results - `TerminalBindResult` / `TextEditorBindResult` convenience aliases - Semantic distinction between `aborted` (intentional stop) and `failed` (actual error) - `BindAbortReason` enum: `ALREADY_BOUND_TO_SAME`, `USER_DECLINED_REPLACEMENT` - `BindFailureReason` enum: `DESTINATION_NOT_AVAILABLE`, `EDITOR_BINARY_FILE`, `EDITOR_READ_ONLY` - Add `BindToTerminalCommand` class that orchestrates terminal selection flow - 0 terminals: Shows error message, returns `no-resource` - 1 terminal: Auto-binds without showing picker - 2+ terminals: Shows terminal picker, binds to selected terminal - Uses `TerminalBindResult` for type-safe result handling - Update `PasteDestinationManager.bindTerminal()` to return `TerminalBindResult` directly - Returns `aborted` outcome for user cancellation/already-bound cases - Eliminates ugly casting (`result.error.details!.reason as BindFailureReason`) - Legacy `bind('terminal')` path preserved with TODO explaining `BindOptions` approach for next PR - Add terminal picker i18n messages (TERMINAL_PICKER_TITLE, TERMINAL_PICKER_BIND_ONLY_PLACEHOLDER, etc.) - Add `DESTINATION_BIND_FAILED` and `UNEXPECTED_PICKER_OUTCOME` error codes - Add `commands/index.ts` barrel export for cleaner imports - Simplify TerminalPickerOptions by removing unused `formatMoreDescription` (UX decision: don't show count) - Update extension.ts to use BindToTerminalCommand for terminal binding command - Add comprehensive test suites for BindToTerminalCommand and PasteDestinationManager.bindTerminal() ## Test Plan - [x] New tests added for: BindToTerminalCommand (0/1/2+ terminal scenarios, picker interactions, abort reasons) - [x] New tests added for: PasteDestinationManager.bindTerminal() (bound/aborted outcomes) - [ ] Manual testing: Command palette "Bind to Terminal" works with terminal picker ## Related - Part of #255 (Terminal Picker) - Depends on: PR1 (#294), PR2 (#296)
WalkthroughAdds a new BindToTerminalCommand and terminal-specific bind result types; updates PasteDestinationManager to support terminal-bound flows and explicit TerminalBindResult outcomes; adjusts terminal picker behavior and i18n keys; and adds/updates comprehensive tests and test helpers for terminal binding and picker scenarios. Changes
Sequence Diagram(s)sequenceDiagram
participant User
participant VSCode as "VSCode (Command Handler)"
participant Command as "BindToTerminalCommand"
participant Picker as "Terminal Picker"
participant Manager as "PasteDestinationManager"
participant Terminal
User->>VSCode: invoke bind-to-terminal
VSCode->>Command: execute()
Command->>VSCode: getEligibleTerminals()
VSCode-->>Command: terminals[]
alt multiple terminals
Command->>Picker: showTerminalPicker(terminals, options)
Picker->>User: display UI
User->>Picker: select / cancel / return-to-destination
Picker-->>Command: pickerOutcome
alt selected
Command->>Manager: bindTerminal(selectedTerminal)
Manager->>Terminal: bind/activate terminal
Manager-->>Command: TerminalBindResult
Command-->>VSCode: TerminalBindResult
else cancelled/returned
Command-->>VSCode: { outcome: 'cancelled' }
end
else single terminal
Command->>Manager: bindTerminal(singleTerminal)
Manager-->>Command: TerminalBindResult
Command-->>VSCode: TerminalBindResult
else no terminals
Command-->>VSCode: { outcome: 'no-resource' }
end
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Actionable comments posted: 1
🤖 Fix all issues with AI agents
In
`@packages/rangelink-vscode-extension/src/__tests__/destinations/PasteDestinationManager.test.ts`:
- Around line 341-353: The test for manager.bindTerminal should also assert that
the extension logger was called; after calling
manager.bindTerminal(mockTerminal) add an assertion that
mockAdapter.__getLogger().info was invoked with a message containing 'RangeLink
bound to Terminal ("bash")' (or the equivalent success log string) to mirror the
existing setStatusBarMessage assertion—use mockAdapter.__getLogger().info (or
the existing mock logger accessor on mockAdapter) as the symbol to locate where
to add the expectation so logging verification stays consolidated with the
behavior test.
🧹 Nitpick comments (1)
packages/rangelink-vscode-extension/src/__tests__/destinations/PasteDestinationManager.test.ts (1)
334-352: Extract a named constant for the 3000ms status bar duration.The 3000 value is a semantic duration and should be a named constant to avoid magic numbers and keep tests consistent.
♻️ Suggested refactor
describe('bindTerminal()', () => { + const STATUS_BAR_MESSAGE_DURATION_MS = 3000; let mockTerminal: vscode.Terminal; beforeEach(() => { mockTerminal = createMockTerminal({ processId: Promise.resolve(12345) }); }); it('returns bound outcome with terminal name on success', async () => { const result = await manager.bindTerminal(mockTerminal); expect(result).toStrictEqual({ outcome: 'bound', details: { terminalName: 'Terminal ("bash")' }, }); expect(manager.isBound()).toBe(true); expect(mockAdapter.__getVscodeInstance().window.setStatusBarMessage).toHaveBeenCalledWith( '✓ RangeLink bound to Terminal ("bash")', - 3000, + STATUS_BAR_MESSAGE_DURATION_MS, );As per coding guidelines, Define named constants using SCREAMING_SNAKE_CASE for all numeric literals with semantic meaning.
packages/rangelink-vscode-extension/src/__tests__/destinations/PasteDestinationManager.test.ts
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Actionable comments posted: 2
🤖 Fix all issues with AI agents
In
`@packages/rangelink-vscode-extension/src/__tests__/commands/BindToTerminalCommand.test.ts`:
- Around line 101-139: The tests assert enum-based values using BindAbortReason
which can mask enum aliasing; update the expect() assertions in
BindToTerminalCommand.test (both the 'already bound' and 'user declines
replacement' cases and the other occurrences around lines 217-248) to use string
literals for the outcome and reason (e.g., expect(result).toStrictEqual({
outcome: 'aborted', reason: 'ALREADY_BOUND_TO_SAME' }) and similarly for
'USER_DECLINED_REPLACEMENT') while keeping BindAbortReason in test setup/mocks
(mockDestinationManager.bindTerminal.mockResolvedValue). Ensure changes
reference the BindToTerminalCommand test cases and BindAbortReason enum values.
In `@packages/rangelink-vscode-extension/src/commands/BindToTerminalCommand.ts`:
- Around line 16-25: The docblock for BindToTerminalCommand is inaccurate:
update it to reflect the real outcomes and APIs used — state that the command
returns 'no-resource' when no terminals are found (not 'no-terminals'), that it
calls PasteDestinationManager.bindTerminal (not bindTerminalWithReference), and
that success feedback is handled by bindTerminal; also ensure the bullet list
matches the actual behavior for 0, 1, and 2+ terminals and references the
BindToTerminalCommand handler and PasteDestinationManager.bindTerminal symbol so
readers can find the implementation.
🧹 Nitpick comments (3)
packages/rangelink-vscode-extension/src/destinations/PasteDestinationManager.ts (1)
94-97: TODO comment is well-documented.The TODO clearly explains the intent (discriminated union
BindOptions), rationale (avoid circular dependency), and references the backup branch for implementation details. Consider creating a tracking issue to ensure this refactor isn't forgotten.Would you like me to open a GitHub issue to track this
BindOptionsrefactor?packages/rangelink-vscode-extension/src/__tests__/commands/BindToTerminalCommand.test.ts (1)
36-46: Avoid a logging-only test; fold the assertion into an existing behavior test.This keeps logging verification alongside real behavior coverage.
♻️ Suggested consolidation
- describe('constructor', () => { - it('logs initialization', () => { - mockAdapter = createMockVscodeAdapter(); - new BindToTerminalCommand(mockAdapter, mockDestinationManager, mockLogger); - - expect(mockLogger.debug).toHaveBeenCalledWith( - { fn: 'BindToTerminalCommand.constructor' }, - 'BindToTerminalCommand initialized', - ); - }); - }); + // (moved constructor logging assertion into an execute() behavior test)command = new BindToTerminalCommand(mockAdapter, mockDestinationManager, mockLogger); + expect(mockLogger.debug).toHaveBeenCalledWith( + { fn: 'BindToTerminalCommand.constructor' }, + 'BindToTerminalCommand initialized', + );As per coding guidelines, include logger assertions in tests that verify method behavior - consolidate logging verification with behavior tests, never create separate tests just for logging.
packages/rangelink-vscode-extension/src/commands/BindToTerminalCommand.ts (1)
38-107: Consider extracting the picker/bind flow into a helper module.
execute()is long and blends UI orchestration with binding logic; splitting improves readability and testability.As per coding guidelines, extract functions into separate modules when they exceed 50 lines, have 3+ dependencies, or mix concerns (UI + business logic) using /utils/, /services/, or /src/ subdirectories.
packages/rangelink-vscode-extension/src/__tests__/commands/BindToTerminalCommand.test.ts
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packages/rangelink-vscode-extension/src/commands/BindToTerminalCommand.ts
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Adds mockLogger.info assertion to verify the success log message is emitted
when binding to a terminal via the direct bindTerminal() method.
Benefits:
- Follows rule T007 ("Always test logging behavior")
- Mirrors the existing pattern used in the bind('terminal') test (lines 241-248)
Ignored Feedback:
- Extract 3000ms to STATUS_BAR_MESSAGE_DURATION_MS constant: The magic number rule (P003) applies to semantic values in production code. In tests, inline literals improve readability by keeping assertions self-contained. Adding a constant would add indirection without meaningful benefit.
Ref: #300 (review)
Applies rule T003 (literal values for contract assertions) to BindToTerminalCommand
tests, and corrects inaccurate docblock that referenced wrong method names and
return values.
Benefits:
- Test assertions now freeze the contract - will catch accidental enum value changes
- Docblock accurately describes actual behavior ('no-resource', 'bindTerminal')
Ignored Feedback:
- Consolidate constructor logging test into behavior test: The constructor is a distinct unit; having its own test is reasonable and doesn't conflict with T007's intent.
- Create tracking issue for TODO comment: This was an offer from CodeRabbit, not a code change request. It will come later in an upcoming stacked PR.
- Extract execute() into helper module (70 lines): The method tells a single cohesive story with early returns. Extracting would add indirection without meaningful benefit; the 50-line guideline flags complexity, but this code isn't complex—it's thorough.
Ref: #300 (review)
1 participant
Summary
Third PR in the stacked PR series for Issue #255 (Terminal Picker). This PR adds the
BindToTerminalCommandclass that orchestrates terminal binding with the terminal picker infrastructure from PR2. The command provides smart terminal selection: auto-bind for single terminals, picker for multiple terminals.Changes
BindResultTypes.tswith rich composition pattern (follows QuickPickTypes.ts pattern)BaseBindResultwithoutcomediscriminatorTerminalBindDetails/TextEditorBindDetailsfor destination-specific success infoBindResult<TDetails>generic union type for type-safe bind resultsTerminalBindResult/TextEditorBindResultconvenience aliasesaborted(intentional stop) andfailed(actual error)BindAbortReasonenum:ALREADY_BOUND_TO_SAME,USER_DECLINED_REPLACEMENTBindFailureReasonenum:DESTINATION_NOT_AVAILABLE,EDITOR_BINARY_FILE,EDITOR_READ_ONLYBindToTerminalCommandclass that orchestrates terminal selection flowno-resourceTerminalBindResultfor type-safe result handlingPasteDestinationManager.bindTerminal()to returnTerminalBindResultdirectlyabortedoutcome for user cancellation/already-bound casesresult.error.details!.reason as BindFailureReason)bind('terminal')path preserved with TODO explainingBindOptionsapproach for next PRDESTINATION_BIND_FAILEDandUNEXPECTED_PICKER_OUTCOMEerror codescommands/index.tsbarrel export for cleaner importsformatMoreDescription(UX decision: don't show count)Test Plan
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Summary by CodeRabbit
New Features
Bug Fixes
Localization
Tests