test(struct_tags): add support for multiple structs

spec/fixtures/tags/many_input.go

@@ -0,0 +1,18 @@
+package main
+
+type (
+	TestOne struct {
+		Asdf string
+		ID   int
+	}
+
+	TestTwo struct {
+		Fesa int
+		A    bool
+	}
+
+	TestThree struct {
+		Asufj int
+		Fs    string
+	}
+)

spec/fixtures/tags/many_output.go

@@ -0,0 +1,18 @@
+package main
+
+type (
+	TestOne struct {
+		Asdf string
+		ID   int
+	}
+
+	TestTwo struct {
+		Fesa int  `testing:"fesa"`
+		A    bool `testing:"a"`
+	}
+
+	TestThree struct {
+		Asufj int
+		Fs    string
+	}
+)

spec/integration/struct_tags_test.lua

@@ -34,4 +34,16 @@ T["struct_tags"]["works remove"] = function()
   t.eq(t.readfile(tmp), fixtures.output)
 end
 
+T["struct_tags"]["works many structs"] = function()
+  local tmp = t.tmpfile()
+  local fixtures = t.get_fixtures "tags/many"
+  t.writefile(tmp, fixtures.input)
+
+  child.cmd("silent edit " .. tmp)
+  child.fn.setpos(".", { child.fn.bufnr "%", 10, 3, 0 })
+  child.cmd "GoTagAdd testing"
+
+  t.eq(t.readfile(tmp), fixtures.output)
+end
+
 return T