✅tests(fortran): added.

tests/tests.lua

@@ -10,6 +10,7 @@ dofile(tests_dir .. 'cpp.lua')
 dofile(tests_dir .. 'cs.lua')
 dofile(tests_dir .. 'dart.lua')
 dofile(tests_dir .. 'elixir.lua')
+dofile(tests_dir .. 'fortran.lua')
 dofile(tests_dir .. 'fsharp.lua')
 dofile(tests_dir .. 'go.lua')
 dofile(tests_dir .. 'java.lua')
@@ -33,6 +34,7 @@ dofile(tests_dir .. 'zig.lua')
 -- * ruby                            → Run this file.
 -- * shell                           → Run this file.
 -- * elixir                          → Run this file.
+-- * fortran                         → Run this file.
 -- * fsharp                          → Run this file.
 -- * r                               → Run this file.
 -- * typescript                      → Run this file.

tests/tests/languages/fortran.lua

@@ -0,0 +1,21 @@
+--- This test file run all supported cases of use.
+--- @usage :luafile ~/.local/share/nvim/lazy/compiler.nvim/tests/tests/languages/fortran.lua
+
+local ms = 1000 -- wait time
+local language = require("compiler.languages.fortran")
+local example = vim.fn.stdpath "data" .. "/lazy/compiler.nvim/tests/examples/languages/fortran/"
+
+-- Build and run
+vim.api.nvim_set_current_dir(example .. "fpm-build-and-run/")
+language.action("option2")
+vim.wait(ms)
+
+-- Build
+vim.api.nvim_set_current_dir(example .. "fpm-build/")
+language.action("option3")
+vim.wait(ms)
+
+-- Run
+vim.api.nvim_set_current_dir(example .. "fpm-run/")
+language.action("option4")
+vim.wait(ms)