test: add some test cases util functions

3 files changed, 188 insertions, 0 deletions

diff --git a/test/nvim_lsp_spec.lua b/test/nvim_lsp_spec.lua
new file mode 100644
index 00000000..dad688dd
--- /dev/null
+++ b/test/nvim_lsp_spec.lua
@@ -0,0 +1,188 @@
+local helpers = require('test.functional.helpers')(after_each)
+local clear = helpers.clear
+local exec_lua = helpers.exec_lua
+local eq = helpers.eq
+local ok = helpers.ok
+
+before_each(function()
+  clear()
+  -- add plugin module path to package.path in Lua runtime in Nvim
+  exec_lua([[
+    package.path = ...
+  ]], package.path)
+end)
+
+describe('nvim_lsp', function()
+  describe('util', function()
+    describe('path', function()
+      describe('exists', function()
+        it('is present directory', function()
+          ok(exec_lua([[
+            local nvim_lsp = require("nvim_lsp")
+
+            local cwd = vim.fn.getcwd()
+            return not (nvim_lsp.util.path.exists(cwd) == false)
+          ]]))
+        end)
+
+        it('is not present directory', function()
+          ok(exec_lua([[
+            local nvim_lsp = require("nvim_lsp")
+
+            local not_exist_dir = vim.fn.getcwd().."/not/exsts"
+            return nvim_lsp.util.path.exists(not_exist_dir) == false
+          ]]))
+        end)
+
+        it('is present file', function()
+          ok(exec_lua([[
+            local nvim_lsp = require("nvim_lsp")
+
+            -- change the working directory to test directory
+            vim.api.nvim_command("cd ../test/test_dir/")
+            local file = vim.fn.getcwd().."/root_marker.txt"
+
+            return not (nvim_lsp.util.path.exists(file) == false)
+          ]]))
+        end)
+
+        it('is not present file', function()
+          ok(exec_lua([[
+            local nvim_lsp = require("nvim_lsp")
+
+            -- change the working directory to test directory
+            vim.api.nvim_command("cd ../test/test_dir/")
+            local file = vim.fn.getcwd().."/not_exists.txt"
+
+            return nvim_lsp.util.path.exists(file) == false
+          ]]))
+        end)
+      end)
+
+      describe('is_dir', function()
+        it('is directory', function()
+          ok(exec_lua([[
+            local nvim_lsp = require("nvim_lsp")
+
+            local cwd = vim.fn.getcwd()
+            return nvim_lsp.util.path.is_dir(cwd)
+          ]]))
+        end)
+
+        it('is not present directory', function()
+          ok(exec_lua([[
+            local nvim_lsp = require("nvim_lsp")
+
+            local not_exist_dir = vim.fn.getcwd().."/not/exsts"
+            return not nvim_lsp.util.path.is_dir(not_exist_dir)
+          ]]))
+        end)
+
+        it('is file', function()
+          ok(exec_lua([[
+            local nvim_lsp = require("nvim_lsp")
+
+            -- change the working directory to test directory
+            vim.api.nvim_command("cd ../test/test_dir/")
+            local file = vim.fn.getcwd().."/root_marker.txt"
+
+            return not nvim_lsp.util.path.is_dir(file)
+          ]]))
+        end)
+      end)
+
+      describe('is_file', function()
+        it('is file', function()
+          ok(exec_lua([[
+            local nvim_lsp = require("nvim_lsp")
+
+            -- change the working directory to test directory
+            vim.api.nvim_command("cd ../test/test_dir/")
+            local file = vim.fn.getcwd().."/root_marker.txt"
+
+            return nvim_lsp.util.path.is_file(file)
+          ]]))
+        end)
+
+        it('is not present file', function()
+          ok(exec_lua([[
+            local nvim_lsp = require("nvim_lsp")
+
+            -- change the working directory to test directory
+            vim.api.nvim_command("cd ../test/test_dir/")
+            local file = vim.fn.getcwd().."/not_exists.txt"
+
+            return not nvim_lsp.util.path.is_file(file)
+          ]]))
+        end)
+
+        it('is directory', function()
+          ok(exec_lua([[
+            local nvim_lsp = require("nvim_lsp")
+
+            local cwd = vim.fn.getcwd()
+            return not nvim_lsp.util.path.is_file(cwd)
+          ]]))
+        end)
+      end)
+
+      describe('is_absolute', function()
+        it('is absolute', function()
+          ok(exec_lua([[
+            local nvim_lsp = require("nvim_lsp")
+            return not (nvim_lsp.util.path.is_absolute("/foo/bar") == nil)
+          ]]))
+        end)
+
+        it('is not absolute', function()
+          ok(exec_lua([[
+            local nvim_lsp = require("nvim_lsp")
+            return nvim_lsp.util.path.is_absolute("foo/bar") == nil
+          ]]))
+
+          ok(exec_lua([[
+            local nvim_lsp = require("nvim_lsp")
+            return nvim_lsp.util.path.is_absolute("../foo/bar") == nil
+          ]]))
+        end)
+      end)
+
+      describe('join', function()
+        it('', function()
+          eq(exec_lua([[
+            local nvim_lsp = require("nvim_lsp")
+            return nvim_lsp.util.path.join("foo", "bar", "baz")
+          ]]), "foo/bar/baz")
+        end)
+      end)
+    end)
+
+    describe('root_pattern', function()
+      it("resolves to a_marker.txt", function()
+        ok(exec_lua([[
+          local nvim_lsp = require("nvim_lsp")
+
+          -- change the working directory to test directory
+          vim.api.nvim_command("cd ../test/test_dir/a")
+          local cwd = vim.fn.getcwd()
+          return cwd == nvim_lsp.util.root_pattern({"root_marker.txt", "a_marker.txt"})(cwd)
+        ]]))
+      end)
+
+      it("resolves to root_marker.txt", function()
+        ok(exec_lua([[
+          local nvim_lsp = require("nvim_lsp")
+
+          -- change the working directory to test directory
+          vim.api.nvim_command("cd ../test/test_dir/a")
+
+          local cwd = vim.fn.getcwd()
+          local resolved = nvim_lsp.util.root_pattern({"root_marker.txt"})(cwd)
+          vim.api.nvim_command("cd ..")
+
+          return vim.fn.getcwd() == resolved
+        ]]))
+      end)
+    end)
+  end)
+end)
diff --git a/test/test_dir/a/a_marker.txt b/test/test_dir/a/a_marker.txt
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/test/test_dir/a/a_marker.txt
diff --git a/test/test_dir/root_marker.txt b/test/test_dir/root_marker.txt
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/test/test_dir/root_marker.txt