From 8182b0ab804c9983ab1129e592cb97e237f81a18 Mon Sep 17 00:00:00 2001
From: Joshua Cold <joshua.cold@securitymetrics.com>
Date: Sat, 23 Aug 2025 20:40:12 -0600
Subject: [PATCH] feat: start testing with mini.nvim

- trigger tests for linux, macos, multiple vim versions
---
 .github/workflows/tests.yaml                  |  53 ++++++
 .gitignore                                    |   3 +
 Makefile                                      |  75 ++++++++
 README.md                                     |   6 +-
 .../pip_pyproject/pyproject.toml              |   8 +
 .../python_projects/pip_pyproject/script.py   |   8 +
 .../pip_requirements/requirements.txt         |   1 +
 .../pip_requirements/script.py                |   8 +
 examples/python_projects/uv/.python-version   |   1 -
 examples/python_projects/uv/main.py           |   2 -
 examples/python_projects/uv/pyproject.toml    |   2 -
 examples/python_projects/uv/uv.lock           | 161 +++++-------------
 lua/python/config.lua                         |  27 ++-
 lua/python/treesitter/commands.lua            |   2 -
 lua/python/venv/create.lua                    |   4 +-
 lua/python/venv/detect.lua                    |  14 +-
 scripts/minimal_init.lua                      |  29 ++++
 tests/_test_template.lua                      |  32 ++++
 tests/test_config.lua                         |  43 +++++
 tests/test_detect.lua                         | 106 ++++++++++++
 tests/test_interpreters.lua                   |  34 ++++
 tests/test_keymap.lua                         |  33 ++++
 tests/test_luasnip.lua                        |  31 ++++
 tests/test_uv.lua                             |  44 +++++
 tests/test_venv_create.lua                    |  57 +++++++
 25 files changed, 644 insertions(+), 140 deletions(-)
 create mode 100644 .github/workflows/tests.yaml
 create mode 100644 Makefile
 create mode 100644 examples/python_projects/pip_pyproject/pyproject.toml
 create mode 100644 examples/python_projects/pip_pyproject/script.py
 create mode 100644 examples/python_projects/pip_requirements/requirements.txt
 create mode 100644 examples/python_projects/pip_requirements/script.py
 delete mode 100644 examples/python_projects/uv/.python-version
 create mode 100644 scripts/minimal_init.lua
 create mode 100644 tests/_test_template.lua
 create mode 100644 tests/test_config.lua
 create mode 100644 tests/test_detect.lua
 create mode 100644 tests/test_interpreters.lua
 create mode 100644 tests/test_keymap.lua
 create mode 100644 tests/test_luasnip.lua
 create mode 100644 tests/test_uv.lua
 create mode 100644 tests/test_venv_create.lua

diff --git a/.github/workflows/tests.yaml b/.github/workflows/tests.yaml
new file mode 100644
index 0000000..9ee9faa
--- /dev/null
+++ b/.github/workflows/tests.yaml
@@ -0,0 +1,53 @@
+name: Neovim Plugin Tests
+on:
+  pull_request:
+    paths:
+      - "Makefile"
+      - ".github/workflows/tests.yaml"
+      - "examples/**"
+      - "lua/**"
+      - "tests/**"
+  push:
+    paths:
+      - "Makefile"
+      - ".github/workflows/tests.yaml"
+      - "examples/**"
+      - "lua/**"
+      - "tests/**"
+
+env: {}
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}-${{ github.actor }}
+  cancel-in-progress: true
+
+jobs:
+  build:
+    name: Run tests
+    timeout-minutes: 15
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ubuntu-latest]
+        neovim_version: ["v0.10.4", "v0.11.3", "nightly"]
+        include:
+          - os: macos-latest
+            neovim_version: v0.11.3
+          # TODO include windows when I have access to test on a windows machine.
+          # - os: windows-latest
+          #   neovim_version: v0.11.3
+    runs-on: ${{ matrix.os }}
+
+    steps:
+      - uses: actions/checkout@v4
+      - name: Setup neovim
+        uses: rhysd/action-setup-vim@v1
+        with:
+          neovim: true
+          version: ${{ matrix.neovim_version }}
+
+      - name: Install uv
+        uses: astral-sh/setup-uv@v6
+
+      - name: Run tests
+        run: make test
diff --git a/.gitignore b/.gitignore
index 55e2090..e9ec938 100644
--- a/.gitignore
+++ b/.gitignore
@@ -214,3 +214,6 @@ cython_debug/
 
 # PyPI configuration file
 .pypirc
+
+# test deps
+deps/
diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..94af4cf
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,75 @@
+SHELL := /bin/bash
+.ONESHELL:
+.SILENT:
+
+# Run all test files
+test: deps test_requirements
+	nvim --headless --noplugin -u ./scripts/minimal_init.lua -c "lua MiniTest.run()"
+
+# Run test from file at `$FILE` environment variable
+test_file: deps test_requirements
+	nvim --headless --noplugin -u ./scripts/minimal_init.lua -c "lua MiniTest.run_file('$(FILE)')"
+
+# Install all test dependencies
+deps: deps/mini.nvim \
+			deps/nvim-dap \
+			deps/nvim-dap-python \
+			deps/nvim-lspconfig \
+			deps/nui.nvim \
+			deps/LuaSnip \
+			deps/neotest \
+			deps/neotest-python \
+			deps/nvim-treesitter
+
+test_requirements:
+	for req in "python3" "uv"; do \
+		command -v "$$req" > /dev/null || { echo "system cmd '$$req' required for tests"; exit 1; } ;\
+	done
+	for req in "venv"; do \
+		python3 -c "import $$req" || { echo "python dependency '$$req' required for tests"; exit 1; } ;\
+	done
+
+deps/nvim-treesitter:
+	set -x
+	@mkdir -p deps
+	git clone --filter=blob:none https://github.com/nvim-treesitter/nvim-treesitter $@
+
+deps/mini.nvim:
+	set -x
+	@mkdir -p deps
+	git clone --filter=blob:none https://github.com/echasnovski/mini.nvim $@
+
+deps/nvim-dap:
+	set -x
+	@mkdir -p deps
+	git clone --filter=blob:none https://github.com/mfussenegger/nvim-dap $@
+
+deps/nvim-dap-python:
+	set -x
+	@mkdir -p deps
+	git clone --filter=blob:none https://github.com/mfussenegger/nvim-dap-python $@
+
+deps/nvim-lspconfig:
+	set -x
+	@mkdir -p deps
+	git clone --filter=blob:none https://github.com/neovim/nvim-lspconfig $@
+
+deps/nui.nvim:
+	set -x
+	@mkdir -p deps
+	git clone --filter=blob:none https://github.com/MunifTanjim/nui.nvim $@
+
+deps/LuaSnip:
+	set -x
+	@mkdir -p deps
+	git clone --filter=blob:none https://github.com/L3MON4D3/LuaSnip $@
+
+deps/neotest:
+	set -x
+	@mkdir -p deps
+	git clone --filter=blob:none https://github.com/nvim-neotest/neotest $@
+
+deps/neotest-python:
+	set -x
+	@mkdir -p deps
+	git clone --filter=blob:none https://github.com/nvim-neotest/neotest-python $@
diff --git a/README.md b/README.md
index 207d380..54ab6bc 100644
--- a/README.md
+++ b/README.md
@@ -289,12 +289,12 @@ return {
 
 - [x] Linux
 
-- [x] MacOS (Mostly should work)
+- [x] MacOS
 
-  - [x] I am detecting python interpreters in homebrew and hatch. Does the community use other methods of installing python?
+  - [x] I am detecting python interpreters in homebrew and hatch and uv. Testing in ci.
 
 - [ ] Windows (Un tested)
-  - [ ] Most likely spots where we are mixing up `/` vs `\` in paths
+  - [ ] Need to test this plugin on a windows machine to verify. I have seen online that neovim users are deciding on WezTerm + WSL to handle support for neovim plugins.
 
 ## Special Thanks
 
diff --git a/examples/python_projects/pip_pyproject/pyproject.toml b/examples/python_projects/pip_pyproject/pyproject.toml
new file mode 100644
index 0000000..93f1dcd
--- /dev/null
+++ b/examples/python_projects/pip_pyproject/pyproject.toml
@@ -0,0 +1,8 @@
+[project]
+name = "test"
+dependencies = [
+  "boto3"
+]
+version = "0.1.0"
+requires-python = ">=3.12"
+description = "A short description of my awesome Python package."
diff --git a/examples/python_projects/pip_pyproject/script.py b/examples/python_projects/pip_pyproject/script.py
new file mode 100644
index 0000000..6a19a83
--- /dev/null
+++ b/examples/python_projects/pip_pyproject/script.py
@@ -0,0 +1,8 @@
+import boto3
+
+def main():
+    print()
+  
+
+if __name__ == "__main__":
+  main()
diff --git a/examples/python_projects/pip_requirements/requirements.txt b/examples/python_projects/pip_requirements/requirements.txt
new file mode 100644
index 0000000..30ddf82
--- /dev/null
+++ b/examples/python_projects/pip_requirements/requirements.txt
@@ -0,0 +1 @@
+boto3
diff --git a/examples/python_projects/pip_requirements/script.py b/examples/python_projects/pip_requirements/script.py
new file mode 100644
index 0000000..6a19a83
--- /dev/null
+++ b/examples/python_projects/pip_requirements/script.py
@@ -0,0 +1,8 @@
+import boto3
+
+def main():
+    print()
+  
+
+if __name__ == "__main__":
+  main()
diff --git a/examples/python_projects/uv/.python-version b/examples/python_projects/uv/.python-version
deleted file mode 100644
index e4fba21..0000000
--- a/examples/python_projects/uv/.python-version
+++ /dev/null
@@ -1 +0,0 @@
-3.12
diff --git a/examples/python_projects/uv/main.py b/examples/python_projects/uv/main.py
index 66aa5d8..7aa4e06 100644
--- a/examples/python_projects/uv/main.py
+++ b/examples/python_projects/uv/main.py
@@ -1,6 +1,4 @@
 import requests
-import boto3
-import redis
 
 def main():
     print("Hello from uv!")
diff --git a/examples/python_projects/uv/pyproject.toml b/examples/python_projects/uv/pyproject.toml
index cabe89c..a42d64c 100644
--- a/examples/python_projects/uv/pyproject.toml
+++ b/examples/python_projects/uv/pyproject.toml
@@ -5,7 +5,5 @@ description = "Add your description here"
 readme = "README.md"
 requires-python = ">=3.12"
 dependencies = [
-    "boto3>=1.37.23",
-    "redis>=5.2.1",
     "requests>=2.32.3",
 ]
diff --git a/examples/python_projects/uv/uv.lock b/examples/python_projects/uv/uv.lock
index e1790f9..f4ba66c 100644
--- a/examples/python_projects/uv/uv.lock
+++ b/examples/python_projects/uv/uv.lock
@@ -1,116 +1,58 @@
 version = 1
-revision = 1
+revision = 3
 requires-python = ">=3.12"
 
-[[package]]
-name = "boto3"
-version = "1.37.23"
-source = { registry = "https://pypi.org/simple" }
-dependencies = [
-    { name = "botocore" },
-    { name = "jmespath" },
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-]
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-]
-
-[[package]]
-name = "botocore"
-version = "1.37.23"
-source = { registry = "https://pypi.org/simple" }
-dependencies = [
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-    { name = "python-dateutil" },
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-sdist = { url = "https://files.pythonhosted.org/packages/0f/ec/aa1a215e5c126fe5decbee2e107468f51d9ce190b9763cb649f76bb45938/s3transfer-0.11.4.tar.gz", hash = "sha256:559f161658e1cf0a911f45940552c696735f5c74e64362e515f333ebed87d679", size = 148419 }
+sdist = { url = "https://files.pythonhosted.org/packages/63/70/2bf7780ad2d390a8d301ad0b550f1581eadbd9a20f896afe06353c2a2913/requests-2.32.3.tar.gz", hash = "sha256:55365417734eb18255590a9ff9eb97e9e1da868d4ccd6402399eaf68af20a760", size = 131218, upload-time = "2024-05-29T15:37:49.536Z" }
 wheels = [
-    { url = "https://files.pythonhosted.org/packages/86/62/8d3fc3ec6640161a5649b2cddbbf2b9fa39c92541225b33f117c37c5a2eb/s3transfer-0.11.4-py3-none-any.whl", hash = "sha256:ac265fa68318763a03bf2dc4f39d5cbd6a9e178d81cc9483ad27da33637e320d", size = 84412 },
-]
-
-[[package]]
-name = "six"
-version = "1.17.0"
-source = { registry = "https://pypi.org/simple" }
-sdist = { url = "https://files.pythonhosted.org/packages/94/e7/b2c673351809dca68a0e064b6af791aa332cf192da575fd474ed7d6f16a2/six-1.17.0.tar.gz", hash = "sha256:ff70335d468e7eb6ec65b95b99d3a2836546063f63acc5171de367e834932a81", size = 34031 }
-wheels = [
-    { url = "https://files.pythonhosted.org/packages/b7/ce/149a00dd41f10bc29e5921b496af8b574d8413afcd5e30dfa0ed46c2cc5e/six-1.17.0-py2.py3-none-any.whl", hash = "sha256:4721f391ed90541fddacab5acf947aa0d3dc7d27b2e1e8eda2be8970586c3274", size = 11050 },
+    { url = "https://files.pythonhosted.org/packages/f9/9b/335f9764261e915ed497fcdeb11df5dfd6f7bf257d4a6a2a686d80da4d54/requests-2.32.3-py3-none-any.whl", hash = "sha256:70761cfe03c773ceb22aa2f671b4757976145175cdfca038c02654d061d6dcc6", size = 64928, upload-time = "2024-05-29T15:37:47.027Z" },
 ]
 
 [[package]]
 name = "urllib3"
 version = "2.3.0"
 source = { registry = "https://pypi.org/simple" }
-sdist = { url = "https://files.pythonhosted.org/packages/aa/63/e53da845320b757bf29ef6a9062f5c669fe997973f966045cb019c3f4b66/urllib3-2.3.0.tar.gz", hash = "sha256:f8c5449b3cf0861679ce7e0503c7b44b5ec981bec0d1d3795a07f1ba96f0204d", size = 307268 }
+sdist = { url = "https://files.pythonhosted.org/packages/aa/63/e53da845320b757bf29ef6a9062f5c669fe997973f966045cb019c3f4b66/urllib3-2.3.0.tar.gz", hash = "sha256:f8c5449b3cf0861679ce7e0503c7b44b5ec981bec0d1d3795a07f1ba96f0204d", size = 307268, upload-time = "2024-12-22T07:47:30.032Z" }
 wheels = [
-    { url = "https://files.pythonhosted.org/packages/c8/19/4ec628951a74043532ca2cf5d97b7b14863931476d117c471e8e2b1eb39f/urllib3-2.3.0-py3-none-any.whl", hash = "sha256:1cee9ad369867bfdbbb48b7dd50374c0967a0bb7710050facf0dd6911440e3df", size = 128369 },
+    { url = "https://files.pythonhosted.org/packages/c8/19/4ec628951a74043532ca2cf5d97b7b14863931476d117c471e8e2b1eb39f/urllib3-2.3.0-py3-none-any.whl", hash = "sha256:1cee9ad369867bfdbbb48b7dd50374c0967a0bb7710050facf0dd6911440e3df", size = 128369, upload-time = "2024-12-22T07:47:28.074Z" },
 ]
 
 [[package]]
@@ -163,14 +84,8 @@ name = "uv"
 version = "0.1.0"
 source = { virtual = "." }
 dependencies = [
-    { name = "boto3" },
-    { name = "redis" },
     { name = "requests" },
 ]
 
 [package.metadata]
-requires-dist = [
-    { name = "boto3", specifier = ">=1.37.23" },
-    { name = "redis", specifier = ">=5.2.1" },
-    { name = "requests", specifier = ">=2.32.3" },
-]
+requires-dist = [{ name = "requests", specifier = ">=2.32.3" }]
diff --git a/lua/python/config.lua b/lua/python/config.lua
index 0b6e6cb..40f017a 100644
--- a/lua/python/config.lua
+++ b/lua/python/config.lua
@@ -109,10 +109,35 @@ local defaults = {
   }
 }
 
+-- Only for existing keys in `target`.
+local function tbl_deep_extend_existing(target, source, prev_key)
+  -- Return if source or target is not a table or is nil
+  if type(target) ~= "table" or type(source) ~= "table" then
+    return target
+  end
+
+  for key, value in pairs(source) do
+    -- Only update keys that already exist in the target table
+    if target[key] ~= nil then
+      if type(target[key]) == "table" and type(value) == "table" then
+        prev_key = prev_key .. "." .. key
+        -- Recurse for nested tables
+        tbl_deep_extend_existing(target[key], value, prev_key)
+      else
+        -- Overwrite existing key
+        target[key] = value
+      end
+    else
+      error(("python.nvim: user inputted config key: %s is not found in config table: %s"):format(key, prev_key))
+    end
+  end
+  return target
+end
+
 ---@param opts? python.Config
 function M.setup(opts)
   opts = opts or {}
-  M.config = vim.tbl_deep_extend('force', defaults, opts)
+  M.config = tbl_deep_extend_existing(defaults, opts, "config")
 end
 
 return setmetatable(M, {
diff --git a/lua/python/treesitter/commands.lua b/lua/python/treesitter/commands.lua
index 62b5dcf..8359ed9 100644
--- a/lua/python/treesitter/commands.lua
+++ b/lua/python/treesitter/commands.lua
@@ -1,7 +1,5 @@
 -- Utility functions and commands utilizing treesitter
 local M = {}
-local nodes = require('python.treesitter.nodes')
-local ts = require('python.treesitter')
 local config = require('python.config')
 
 ---get node at cursor and validate that the user has at least nvim 0.9
diff --git a/lua/python/venv/create.lua b/lua/python/venv/create.lua
index ef5d753..95b6975 100644
--- a/lua/python/venv/create.lua
+++ b/lua/python/venv/create.lua
@@ -283,7 +283,7 @@ end
 ---Create the python venv with selected interpreter"
 ---@param venv_path string path of venv to create
 ---@param python_interpreter string path to python executable to use
-local function create_venv_with_python(venv_path, python_interpreter)
+function M.create_venv_with_python(venv_path, python_interpreter)
   vim.notify_once('python.nvim: creating venv at: ' .. venv_path, vim.log.levels.INFO)
   local cmd = { python_interpreter, '-m', 'venv', venv_path }
   vim.system(
@@ -389,7 +389,7 @@ local function venv_install_file(detect)
       return
     end
 
-    create_venv_with_python(venv_path_user_input, python_interpreter_user_input)
+    M.create_venv_with_python(venv_path_user_input, python_interpreter_user_input)
 
     install_function(detect.venv.install_file, venv_path_user_input, function()
       local val = {
diff --git a/lua/python/venv/detect.lua b/lua/python/venv/detect.lua
index 0524554..fc9e8f2 100644
--- a/lua/python/venv/detect.lua
+++ b/lua/python/venv/detect.lua
@@ -2,6 +2,7 @@ local state = require("python.state")
 local create = require("python.venv.create")
 
 local M = {}
+local IS_WINDOWS = vim.uv.os_uname().sysname == 'Windows_NT'
 
 ---@class DetectVEnv
 ---@field dir string Current working directory found containing venv
@@ -119,12 +120,12 @@ function M.search_up(dir_or_file)
   local dir_to_check = nil
   -- get parent directory of current file in buffer via vim expand
   local dir_template = '%:p:h'
-  while not found and dir_to_check ~= '/' do
+  while not found and (dir_to_check ~= '/' or dir_to_check ~= "C:\\" or dir_to_check ~= "D:\\") do
     dir_to_check = vim.fn.expand(dir_template)
-    local check_path = dir_to_check .. '/' .. dir_or_file
-    local check_git = dir_to_check .. '/' .. '.git'
+    local check_path = vim.fs.joinpath(dir_to_check, dir_or_file)
+    local check_git = vim.fs.joinpath(dir_to_check, '.git')
     if vim.fn.isdirectory(check_path) == 1 or vim.fn.filereadable(check_path) == 1 then
-      found = dir_to_check .. '/' .. dir_or_file
+      found = vim.fs.joinpath(dir_to_check, dir_or_file)
     else
       dir_template = dir_template .. ':h'
     end
@@ -155,6 +156,11 @@ function M.search_for_detected_type()
     if check_type == "pattern" then
       if vim.fn.search(search) ~= 0 then
         local found = vim.api.nvim_buf_get_name(0)
+        -- Go through join path to get / slashes to be consistent in windows like
+        -- we get with M.search_up
+        if IS_WINDOWS then
+          found = vim.fs.joinpath(vim.fs.dirname(found), vim.fs.basename(found))
+        end
         return found, search
       end
     end
diff --git a/scripts/minimal_init.lua b/scripts/minimal_init.lua
new file mode 100644
index 0000000..27f4f3c
--- /dev/null
+++ b/scripts/minimal_init.lua
@@ -0,0 +1,29 @@
+-- Add current directory to 'runtimepath' to be able to use 'lua' files
+vim.cmd([[let &rtp.=','.getcwd()]])
+
+-- Set up 'mini.test' only when calling headless Neovim (like with `make test`)
+if #vim.api.nvim_list_uis() == 0 then
+  -- Add 'mini.nvim' to 'runtimepath' to be able to use 'mini.test'
+  -- Assumed that 'mini.nvim' is stored in 'deps/mini.nvim'
+  --
+  local runtime_dependencies = {
+    "deps/mini.nvim",
+    "deps/nui.nvim",
+    "deps/nvim-treesitter",
+    "deps/neotest",
+    "deps/neotest-python",
+    "deps/nvim-dap",
+    "deps/nvim-dap-python",
+    "deps/nvim-lspconfig",
+    "deps/LuaSnip",
+  }
+  local runtime_path = vim.fn.join(runtime_dependencies, ",")
+  vim.cmd('set rtp+=' .. runtime_path)
+
+  -- Set up 'mini.test'
+  require('nui.popup')
+  require('luasnip.extras.fmt')
+  require('luasnip.nodes.absolute_indexer')
+  require('nvim-treesitter.locals')
+  require('mini.test').setup()
+end
diff --git a/tests/_test_template.lua b/tests/_test_template.lua
new file mode 100644
index 0000000..2e479cd
--- /dev/null
+++ b/tests/_test_template.lua
@@ -0,0 +1,32 @@
+-- Define helper aliases
+local new_set = MiniTest.new_set
+local expect, eq = MiniTest.expect, MiniTest.expect.equality
+
+-- Create (but not start) child Neovim object
+local child = MiniTest.new_child_neovim()
+
+-- Define main test set of this file
+local T = new_set({
+  -- Register hooks
+  hooks = {
+    -- This will be executed before every (even nested) case
+    pre_case = function()
+      -- Restart child process with custom 'init.lua' script
+      child.restart({ '-u', 'scripts/minimal_init.lua' })
+      -- Load tested plugin
+      child.lua([[require('python').setup()]])
+    end,
+    -- This will be executed one after all tests from this set are finished
+    post_once = child.stop,
+  },
+})
+
+-- T['works'] = function()
+--   local x = 1 + 1
+--   if x ~= 2 then
+--     error('`x` is not equal to 2')
+--   end
+-- end
+
+-- Return test set which will be collected and execute inside `MiniTest.run()`
+return T
diff --git a/tests/test_config.lua b/tests/test_config.lua
new file mode 100644
index 0000000..860c974
--- /dev/null
+++ b/tests/test_config.lua
@@ -0,0 +1,43 @@
+-- Define helper aliases
+local new_set = MiniTest.new_set
+local expect, eq = MiniTest.expect, MiniTest.expect.equality
+
+-- Create (but not start) child Neovim object
+local child = MiniTest.new_child_neovim()
+
+-- Define main test set of this file
+local T = new_set({
+  -- Register hooks
+  hooks = {
+    -- This will be executed before every (even nested) case
+    pre_case = function()
+      -- Restart child process with custom 'init.lua' script
+      child.restart({ '-u', 'scripts/minimal_init.lua' })
+      -- Load tested plugin
+      child.lua([[config = require('python.config')]])
+    end,
+    -- This will be executed one after all tests from this set are finished
+    post_once = child.stop,
+  },
+})
+
+T['setup'] = MiniTest.new_set()
+
+T['setup']['init'] = function()
+  child.lua('config.setup({})')
+  eq(child.lua('return config.python_lua_snippets'), false)
+end
+
+T['setup']['override'] = function()
+  child.lua('config.setup({ python_lua_snippets = true })')
+  eq(child.lua('return config.python_lua_snippets'), true)
+end
+
+T['setup']['not_found'] = function()
+  expect.error(function() 
+    child.lua('config.setup({ ui = { popup = {foobar = true}} })')
+  end, ".*user inputted config key: foobar is not found.*")
+end
+
+-- Return test set which will be collected and execute inside `MiniTest.run()`
+return T
diff --git a/tests/test_detect.lua b/tests/test_detect.lua
new file mode 100644
index 0000000..a96ab53
--- /dev/null
+++ b/tests/test_detect.lua
@@ -0,0 +1,106 @@
+-- Define helper aliases
+local new_set = MiniTest.new_set
+local expect, eq = MiniTest.expect, MiniTest.expect.equality
+
+-- Create (but not start) child Neovim object
+local child = MiniTest.new_child_neovim()
+
+-- Define main test set of this file
+local T = new_set({
+  -- Register hooks
+  hooks = {
+    -- This will be executed before every (even nested) case
+    pre_case = function()
+      -- Restart child process with custom 'init.lua' script
+      child.restart({ '-u', 'scripts/minimal_init.lua' })
+      -- Load tested plugin
+    end,
+    -- This will be executed one after all tests from this set are finished
+    post_once = child.stop,
+  },
+})
+
+--- expect to detect wanted methods per project.
+T['detect'] = MiniTest.new_set({
+  parametrize = {
+    {
+      {
+        project_path = "examples/python_projects/pip_requirements",
+        install_file = "requirements.txt",
+        dependency_method = "requirements.txt"
+      }
+    },
+    {
+      {
+        project_path = "examples/python_projects/pip_pyproject",
+        install_file = "pyproject.toml",
+        dependency_method = "pyproject.toml"
+      }
+    },
+    {
+      {
+        project_path = "examples/python_projects/uv",
+        install_file = "uv.lock",
+        dependency_method = "uv.lock"
+      }
+    },
+    {
+      {
+        project_path = "examples/python_projects/poetry",
+        install_file = "poetry.lock",
+        dependency_method = "poetry.lock"
+      }
+    },
+    {
+      {
+        project_path = "examples/python_projects/uv_script",
+        install_file = "uv-script.py",
+        dependency_method = "/// script"
+      }
+    },
+    {
+      {
+        project_path = "examples/python_projects/no_dep",
+        install_file = "test.py",
+        dependency_method = "",
+        expect_nil = true
+      }
+    },
+  }
+})
+
+T['detect']['methods'] = function(args)
+  require("python.venv.detect")
+  local project_path = args.project_path
+  child.cmd("cd " .. project_path)
+  child.cmd([[!rm -rf .venv]])
+  child.cmd("e " .. args.install_file)
+  child.lua([[detect = require('python.venv.detect')]])
+
+  -- Get abspath in lua for older versions of neovim
+  local abspath = child.lua("return vim.fn.expand('%:p:h')")
+
+  -- Weird vim.fs.joinpath in test is meant to have vim output the same pathing
+  -- format that happens in windows from joinpath in detect_venv_dependency_file
+  if vim.uv.os_uname().sysname == 'Windows_NT' then
+    abspath = vim.fs.joinpath(vim.fs.dirname(child.lua("return vim.fn.expand('%:p:h')")),
+      vim.fs.basename(args.project_path))
+  end
+
+  ---@type DetectVEnv | vim.NIL
+  local ex = DetectVEnv:new({
+    dir = abspath,
+    venv = {
+      install_file = vim.fs.joinpath(abspath, args.install_file),
+      install_method = args.dependency_method,
+      source = "venv"
+    }
+  })
+  if args.expect_nil then
+    ex = vim.NIL
+  end
+
+  eq(child.lua([[ return detect.detect_venv_dependency_file(false, false) ]]), ex)
+end
+
+return T
diff --git a/tests/test_interpreters.lua b/tests/test_interpreters.lua
new file mode 100644
index 0000000..a62b105
--- /dev/null
+++ b/tests/test_interpreters.lua
@@ -0,0 +1,34 @@
+
+-- Define helper aliases
+local new_set = MiniTest.new_set
+local expect, eq = MiniTest.expect, MiniTest.expect.equality
+
+-- Create (but not start) child Neovim object
+local child = MiniTest.new_child_neovim()
+
+-- Define main test set of this file
+local T = new_set({
+  -- Register hooks
+  hooks = {
+    -- This will be executed before every (even nested) case
+    pre_case = function()
+      -- Restart child process with custom 'init.lua' script
+      child.restart({ '-u', 'scripts/minimal_init.lua' })
+      -- Load tested plugin
+      child.lua([[require('python').setup()]])
+    end,
+    -- This will be executed one after all tests from this set are finished
+    post_once = child.stop,
+  },
+})
+
+T['interpreters'] = MiniTest.new_set()
+
+T['interpreters']['python'] = function()
+  child.lua("inter = require('python.venv.interpreters')")
+  local pythons = child.lua("return inter.python_interpreters()")
+  assert(#pythons > 0)
+end
+
+-- Return test set which will be collected and execute inside `MiniTest.run()`
+return T
diff --git a/tests/test_keymap.lua b/tests/test_keymap.lua
new file mode 100644
index 0000000..0372df3
--- /dev/null
+++ b/tests/test_keymap.lua
@@ -0,0 +1,33 @@
+-- Define helper aliases
+local new_set = MiniTest.new_set
+local expect, eq = MiniTest.expect, MiniTest.expect.equality
+
+-- Create (but not start) child Neovim object
+local child = MiniTest.new_child_neovim()
+
+-- Define main test set of this file
+local T = new_set({
+  -- Register hooks
+  hooks = {
+    -- This will be executed before every (even nested) case
+    pre_case = function()
+      -- Restart child process with custom 'init.lua' script
+      child.restart({ '-u', 'scripts/minimal_init.lua' })
+      -- Load tested plugin
+      child.lua([[require('python').setup()]])
+    end,
+    -- This will be executed one after all tests from this set are finished
+    post_once = child.stop,
+  },
+})
+
+-- Keymaps can be loaded
+T['keymaps'] = function()
+  child.cmd("cd examples/python_projects/uv")
+  child.cmd("e main.py")
+  local keymap = child.cmd_capture("map <leader>pi")
+  assert(string.find(keymap, "python venv install", 1, true))
+end
+
+-- Return test set which will be collected and execute inside `MiniTest.run()`
+return T
diff --git a/tests/test_luasnip.lua b/tests/test_luasnip.lua
new file mode 100644
index 0000000..b18f534
--- /dev/null
+++ b/tests/test_luasnip.lua
@@ -0,0 +1,31 @@
+-- Define helper aliases
+local new_set = MiniTest.new_set
+local expect, eq = MiniTest.expect, MiniTest.expect.equality
+
+-- Create (but not start) child Neovim object
+local child = MiniTest.new_child_neovim()
+
+-- Define main test set of this file
+local T = new_set({
+  -- Register hooks
+  hooks = {
+    -- This will be executed before every (even nested) case
+    pre_case = function()
+      -- Restart child process with custom 'init.lua' script
+      child.restart({ '-u', 'scripts/minimal_init.lua' })
+      -- Load tested plugin
+      child.lua([[require('python').setup({ python_lua_snippets = true })]])
+    end,
+    -- This will be executed one after all tests from this set are finished
+    post_once = child.stop,
+  },
+})
+
+T['snips will load'] = function()
+  child.lua([[M = require('python.snip')]])
+  child.lua([[M.load_snippets()]])
+  eq(child.lua([[return vim.g._python_nvim_snippets_loaded]]), true)
+end
+
+-- Return test set which will be collected and execute inside `MiniTest.run()`
+return T
diff --git a/tests/test_uv.lua b/tests/test_uv.lua
new file mode 100644
index 0000000..d012124
--- /dev/null
+++ b/tests/test_uv.lua
@@ -0,0 +1,44 @@
+-- Define helper aliases
+local new_set = MiniTest.new_set
+local expect, eq = MiniTest.expect, MiniTest.expect.equality
+
+-- Create (but not start) child Neovim object
+local child = MiniTest.new_child_neovim()
+
+-- Define main test set of this file
+local T = new_set({
+  -- Register hooks
+  hooks = {
+    -- This will be executed before every (even nested) case
+    pre_case = function()
+      -- Restart child process with custom 'init.lua' script
+      child.restart({ '-u', 'scripts/minimal_init.lua' })
+      -- Load tested plugin
+      child.lua([[require('python').setup()]])
+    end,
+    -- This will be executed one after all tests from this set are finished
+    post_once = child.stop,
+  },
+})
+T['uv'] = MiniTest.new_set({
+  hooks = {
+    pre_case = function()
+    end
+  }
+})
+
+T['uv']['command'] = function()
+  child.cmd("cd examples/python_projects/uv")
+  child.cmd("e main.py")
+  child.cmd([[!rm -rf .venv]])
+  child.cmd([[UV sync]])
+  local dir = child.lua("return vim.fn.expand('%:p:h')")
+  local venv_dir = vim.fs.joinpath(dir, ".venv")
+
+  -- give some seconds for uv sync to download package
+  vim.loop.sleep(3000)
+  eq(child.lua(("return vim.fn.isdirectory('%s')"):format(venv_dir)), 1)
+end
+
+-- Return test set which will be collected and execute inside `MiniTest.run()`
+return T
diff --git a/tests/test_venv_create.lua b/tests/test_venv_create.lua
new file mode 100644
index 0000000..ca91eb2
--- /dev/null
+++ b/tests/test_venv_create.lua
@@ -0,0 +1,57 @@
+-- Define helper aliases
+local new_set = MiniTest.new_set
+local expect, eq = MiniTest.expect, MiniTest.expect.equality
+
+-- Create (but not start) child Neovim object
+local child = MiniTest.new_child_neovim()
+
+-- Define main test set of this file
+local T = new_set({
+  -- Register hooks
+  hooks = {
+    -- This will be executed before every (even nested) case
+    pre_case = function()
+      -- Restart child process with custom 'init.lua' script
+      child.restart({ '-u', 'scripts/minimal_init.lua' })
+      -- Load tested plugin
+      child.lua([[require('python').setup({})]])
+    end,
+    -- This will be executed one after all tests from this set are finished
+    post_once = child.stop,
+  },
+})
+
+
+T['create'] = MiniTest.new_set({ n_retry = 3 })
+
+-- NOTE: requires python3 and python3-venv installed on system
+T['create']['venv'] = function()
+  child.lua("create = require('python.venv.create')")
+  child.cmd("cd examples/python_projects/uv")
+  child.cmd("!rm -rf .venv")
+  child.cmd("e main.py")
+  child.lua("create.create_venv_with_python('.venv', 'python3')")
+  assert(vim.fn.isdirectory("examples/python_projects/uv/.venv") == 1)
+  child.cmd("!rm -rf .venv")
+end
+
+-- NOTE: requires uv installed on system
+T['create']['uv_sync'] = function()
+  child.lua("create = require('python.venv.create')")
+  child.cmd("cd examples/python_projects/uv")
+  child.cmd("!rm -rf .venv")
+  child.cmd("e main.py")
+  child.lua("create.create_venv_with_python('.venv', 'python3')")
+  child.lua("create.uv_sync('uv.lock', '.venv', function()end, false)")
+
+  local dep_path = vim.fn.system(
+    [[examples/python_projects/uv/.venv/bin/python -c 'import sys; print(sys.path[-1], end="")']])
+
+  assert(string.find(dep_path, "python_projects", 1, true))
+
+  local check_dir = vim.fs.joinpath(dep_path, "requests")
+  eq(vim.fn.isdirectory(check_dir), 1)
+end
+
+-- Return test set which will be collected and execute inside `MiniTest.run()`
+return T