Test File Jumper

by verabravo

Jump between source and test files for any naming convention — pytest, Jest, PascalCase, snake_case and more

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Version

1.0.0

Last updated

Jun 17, 2026

Other #python #typescript #keybindings #switch #jest #test #tdd #pytest #Navigate #jump

Jump between a source file and its test file with a single shortcut — works with any language and naming convention.

Default shortcut: Shift+Cmd+T (Mac) / Shift+Ctrl+T (Windows/Linux)

Supported conventions

From	To
`test_foo.py`	`foo.py`
`foo_test.py`	`foo.py`
`TestMyClass.py`	`MyClass.py` → `my_class.py`
`MyClassTest.py`	`MyClass.py` → `my_class.py`
`foo.test.ts` / `foo.spec.ts`	`foo.ts`
`foo.py`	first match: `test_foo.py` → `foo_test.py` → `foo.test.py` → `foo.spec.py` → `TestFoo.py` → `FooTest.py`
`MyClass.py`	`TestMyClass.py` → `MyClassTest.py`
`my_class.py`	`test_my_class.py` → … → `TestMyClass.py` → `MyClassTest.py`

Works with any file extension (.py, .ts, .js, .kt, .java, …).

How it works

The extension uses VS Code's built-in workspace file index (workspace.findFiles) — no shell processes, no terminal, instant navigation.

When jumping from a source file, candidates are tried in order and the first match wins. When jumping from a test file, the convention is detected from the filename automatically.

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