feat: add plenary tests (#420)

* feat: add tests

* fix(hash): use h * 33 + c for djb2

* fix: unload all lua module in before_each

.github/workflows/tests.yml

@@ -0,0 +1,32 @@
+---
+name: Tests
+on:
+  pull_request: ~
+  push:
+    paths-ignore:
+      - "*.md"
+    branches:
+      - main
+
+jobs:
+  build:
+    name: Run tests
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v3
+      - name: Install Neovim
+        shell: bash
+        run: |
+          wget -q https://github.com/neovim/neovim/releases/download/nightly/nvim-linux64.deb -O /tmp/nvim.deb
+          sudo dpkg -i /tmp/nvim.deb
+      - name: Fetch dependencies
+        run: |
+          git clone --depth 1 https://github.com/nvim-lua/plenary.nvim ~/.local/share/nvim/site/pack/vendor/start/plenary.nvim
+          git clone --depth 1 https://github.com/kyazdani42/nvim-web-devicons ~/.local/share/nvim/site/pack/vendor/start/nvim-web-devicons
+          ln -s $(pwd) ~/.local/share/nvim/site/pack/vendor/start
+      - name: Run tests
+        run: |
+          nvim --version
+          [ ! -d tests ] && exit 0
+          nvim --headless -u tests/init.lua -c "PlenaryBustedDirectory tests/ {minimal_init = 'tests/init.lua', sequential = true}"

lua/catppuccin/lib/hashing.lua

@@ -4,7 +4,7 @@ local B = bit or bit32 or require "catppuccin.lib.vim.bit"
 local hash_str = function(str) -- djb2, https://stackoverflow.com/questions/7666509/hash-function-for-string
 	local hash = 5381
 	for i = 1, #str do
-		hash = B.lshift(hash, 5) + string.byte(str, i)
+		hash = B.lshift(hash, 5) + hash + string.byte(str, i)
 	end
 	return hash
 end

tests/compile_spec.lua

@@ -0,0 +1,20 @@
+describe("compile", function()
+	before_each(function()
+		for name, _ in pairs(package.loaded) do
+			if name:match "^catppuccin" and name ~= "catppuccin" then package.loaded[name] = nil end
+		end
+	end)
+	it("without setup", function()
+		assert.equals(pcall(function() require("catppuccin").compile() end), true)
+	end)
+	it("user 1", function()
+		require("catppuccin").setup {
+			custom_highlight = function(C)
+				return {
+					SpellBad = { cterm = { underdashed = true } },
+				}
+			end,
+		}
+		assert.equals(pcall(function() require("catppuccin").compile() end), true)
+	end)
+end)

tests/load_spec.lua

@@ -0,0 +1,5 @@
+describe("set colorscheme", function()
+	it("without calling setup", function()
+		assert.equals(pcall(function() vim.cmd.colorscheme "catppuccin" end), true)
+	end)
+end)

tests/minimal_init.vim

@@ -0,0 +1,3 @@
+set rtp+=.
+
+runtime! plugin/plenary.vim

tests/setup_spec.lua

@@ -0,0 +1,41 @@
+describe("setup hash", function()
+	local hash = require("catppuccin.lib.hashing").hash
+	it("typo", function() assert.are_not.equals(hash { custom_highlight = {} }, hash { ustom_highlight = {} }) end)
+	it(
+		"when table order is shuffled",
+		function()
+			assert.equals(
+				hash {
+					custom_highlight = {
+						Search = { fg = "#F5C2E7", bg = "#45475A", style = { "bold" } },
+						IncSearch = { fg = "#45475A", bg = "#F5C2E7" },
+					},
+				},
+				hash {
+					custom_highlight = {
+						Search = { style = { "bold" }, bg = "#45475A", fg = "#F5C2E7" },
+						IncSearch = { bg = "#F5C2E7", fg = "#45475A" },
+					},
+				}
+			)
+		end
+	)
+	it(
+		"when toggle true/false",
+		function()
+			assert.are_not.equals({
+				integrations = {
+					navic = true,
+					noice = true,
+					fidget = true,
+				},
+			}, {
+				integrations = {
+					navic = true,
+					noice = false,
+					fidget = false,
+				},
+			})
+		end
+	)
+end)