tests: add sample

sample-plugins/.custom-gcl.yml

@@ -0,0 +1,7 @@
+version: v2.6.1
+name: custom-golangci-lint
+#destination: ./zzz/path/
+
+plugins:
+  - module: 'github.com/golangci/example-plugin-module-linter'
+    version: v0.1.0

sample-plugins/.gitignore

@@ -0,0 +1 @@
+/custom-golangci-lint

sample-plugins/.golangci.yml

@@ -0,0 +1,25 @@
+version: "2"
+
+linters:
+  default: none
+  enable:
+    - example
+
+  settings:
+    custom:
+      example:
+        type: module
+        # Description is optional
+        description: The description of the linter. This is optional, but shows up when running `golangci-lint linters`.
+        # Original-url is optional, and is only used for documentation purposes.
+        original-url: github.com/golangci/example-plugin-module-linter
+        settings:
+          one: Foo
+          two:
+            - name: Bar
+          three:
+            name: Bar
+
+issues:
+  max-issues-per-linter: 0
+  max-same-issues: 0

sample-plugins/go.mod

@@ -0,0 +1,3 @@
+module github.com/golangci/sample
+
+go 1.24.0

sample-plugins/sample.go

@@ -0,0 +1,22 @@
+// Package sample is used as test input for golangci action.
+package sample
+
+// comment without a to do
+func SomeFunc1() {
+	_ = 1 + 1
+}
+
+// TODO: do something	// want "TODO comment has no author"
+func SomeFunc2() {
+	_ = 1 + 2
+}
+
+// TODO(): do something // want "TODO comment has no author"
+func SomeFunc3() {
+	_ = 1 + 3
+}
+
+// TODO(dbraley): Do something with the value
+func SomeFunc4() {
+	_ = 1 + 4
+}