test(iferr): add integration

spec/fixtures/iferr/input.go

@@ -0,0 +1,7 @@
+package main
+
+import "net"
+
+func main() {
+	_, err := net.Listen("tcp", ":8080")
+}

spec/fixtures/iferr/output.go

@@ -0,0 +1,10 @@
+package main
+
+import "net"
+
+func main() {
+	_, err := net.Listen("tcp", ":8080")
+	if err != nil {
+		return
+	}
+}

spec/integration/iferr_spec.lua

@@ -0,0 +1,26 @@
+local cur_dir = vim.fn.expand "%:p:h"
+
+describe("gopher.iferr", function()
+  it("can be required", function()
+    require "gopher.iferr"
+  end)
+
+  it("should be able to add iferr", function()
+    local temp_file = vim.fn.tempname() .. ".go"
+    local input_file = vim.fn.readfile(cur_dir .. "/spec/fixtures/iferr/input.go")
+    local output_file = vim.fn.join(vim.fn.readfile(cur_dir .. "/spec/fixtures/iferr/output.go"), "\n")
+
+    vim.fn.writefile(input_file, temp_file)
+    vim.bo.filetype = "go"
+    vim.cmd("silent exe 'e " .. temp_file .. "'")
+
+    local bufn = vim.fn.bufnr(0)
+    vim.fn.setpos(".", { bufn, 6, 4, 0 })
+    require "gopher.iferr"()
+    vim.cmd "w"
+
+    vim.wait(100)
+    assert.are.same(output_file, vim.fn.join(vim.fn.readfile(temp_file), "\n"))
+    vim.cmd("bd! " .. temp_file)
+  end)
+end)