package main

import (
	"os"
	"path/filepath"
	"testing"
)

func TestCheckBuildmodePlugin_FlagsMakefileAndScript(t *testing.T) {
	root := t.TempDir()
	if err := os.WriteFile(filepath.Join(root, "Makefile"),
		[]byte("build-so:\n\tgo build -buildmode=plugin -o plugin.so .\n"), 0o644); err != nil {
		t.Fatal(err)
	}
	if err := os.WriteFile(filepath.Join(root, "build.sh"),
		[]byte("#!/bin/sh\ngo build -buildmode=plugin -o x.so .\n"), 0o644); err != nil {
		t.Fatal(err)
	}
	// A non-build file mentioning the string must NOT be flagged.
	if err := os.WriteFile(filepath.Join(root, "README.md"),
		[]byte("we used to run go build -buildmode=plugin here\n"), 0o644); err != nil {
		t.Fatal(err)
	}

	v := checkBuildmodePlugin([]pluginScanTarget{{root: root, display: "demo"}})
	if len(v) != 2 {
		t.Fatalf("got %d violations, want 2: %+v", len(v), v)
	}
}

func TestCheckBuildmodePlugin_CleanRepo(t *testing.T) {
	root := t.TempDir()
	if err := os.WriteFile(filepath.Join(root, "Makefile"),
		[]byte("build-wasm:\n\tninja plugin build\n"), 0o644); err != nil {
		t.Fatal(err)
	}
	if v := checkBuildmodePlugin([]pluginScanTarget{{root: root, display: "demo"}}); len(v) != 0 {
		t.Fatalf("clean repo flagged: %+v", v)
	}
}