tests

spec/fixtures/alternate/source_input.go

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+package main

spec/fixtures/alternate/source_output.go

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+package main

spec/fixtures/alternate/test_input.go

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+package main

spec/fixtures/alternate/test_output.go

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+package main

spec/integration/alternate_test.lua

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+-- spec/integration/alternate_test.lua
+--
+-- Integration tests for the GoAlt family of commands after removing the
+-- `bang` flag.  The commands now *always* open or create the sibling file.
+--
+-- Conventions match comment/iferr/impl suites: use `t.setup_test()`,
+-- run the Ex-command via `child.cmd`, then `write`, then assertions.
+
+local t = require "spec.testutils"
+local child, T = t.setup "alternate"
+
+-- ── small helpers ────────────────────────────────────────────────────────
+
+---foo.go ⇄ foo_test.go
+local function sibling(path)
+  if path:find "_test%.go$" then
+    return path:gsub("_test%.go$", ".go")
+  else
+    return path:gsub("%.go$", "_test.go")
+  end
+end
+
+---Run <cmd> inside a tmp copy of fixture `name`.
+---@param name string   "source" or "test"
+---@param cmd  string   "GoAlt", "GoAltV", "GoAltS"
+---@return table        rs from t.setup_test (for later cleanup)
+---@return string       absolute sibling path
+local function do_the_test(name, cmd)
+  local rs = t.setup_test("alternate/" .. name, child, { 1, 1 })
+  local alt = sibling(rs.tmp)
+
+  os.remove(alt)
+  child.cmd(cmd)
+  child.cmd "write"
+
+  return rs, alt
+end
+
+T["GoAlt"] = MiniTest.new_set {}
+T["GoAltV"] = MiniTest.new_set {}
+T["GoAltS"] = MiniTest.new_set {}
+
+T["GoAlt"]["creates/opens sibling from source"] = function()
+  local rs, alt = do_the_test("source", "GoAlt")
+
+  t.eq(child.fn.expand "%:p", alt)
+  t.eq(child.fn.filereadable(alt), 0)
+
+  t.cleanup(rs)
+  t.deletefile(alt)
+end
+
+T["GoAlt"]["toggles back when invoked on test file"] = function()
+  local rs, src = do_the_test("test", "GoAlt")
+
+  t.eq(child.fn.expand "%:p", src)
+  t.eq(child.fn.filereadable(src), 0)
+
+  t.cleanup(rs)
+  t.deletefile(src)
+end
+
+T["GoAltV"]["opens sibling in vertical split"] = function()
+  local rs, alt = do_the_test("source", "GoAltV")
+
+  t.eq(#child.api.nvim_list_wins(), 2)
+  t.eq(child.fn.expand "%:p", alt)
+
+  t.cleanup(rs)
+  t.deletefile(alt)
+end
+
+T["GoAltS"]["opens sibling in horizontal split"] = function()
+  local rs, alt = do_the_test("source", "GoAltS")
+
+  t.eq(#child.api.nvim_list_wins(), 2)
+  t.eq(child.fn.expand "%:p", alt)
+
+  t.cleanup(rs)
+  t.deletefile(alt)
+end
+
+return T