added helper archive package to create and extract zips

tools/archive/extract_test.go

@@ -0,0 +1,57 @@
+package archive_test
+
+import (
+	"os"
+	"path/filepath"
+	"testing"
+
+	"github.com/pocketbase/pocketbase/tools/archive"
+)
+
+func TestExtractFailure(t *testing.T) {
+	testDir := createTestDir(t)
+	defer os.RemoveAll(testDir)
+
+	missingZipPath := filepath.Join(os.TempDir(), "pb_missing_test.zip")
+	extractPath := filepath.Join(os.TempDir(), "pb_zip_extract")
+	defer os.RemoveAll(extractPath)
+
+	if err := archive.Extract(missingZipPath, extractPath); err == nil {
+		t.Fatal("Expected Extract to fail due to missing zipPath")
+	}
+
+	if _, err := os.Stat(extractPath); err == nil {
+		t.Fatalf("Expected %q to not be created", extractPath)
+	}
+}
+
+func TestExtractSuccess(t *testing.T) {
+	testDir := createTestDir(t)
+	defer os.RemoveAll(testDir)
+
+	zipPath := filepath.Join(os.TempDir(), "pb_test.zip")
+	defer os.RemoveAll(zipPath)
+
+	extractPath := filepath.Join(os.TempDir(), "pb_zip_extract")
+	defer os.RemoveAll(extractPath)
+
+	// zip testDir content
+	if err := archive.Create(testDir, zipPath); err != nil {
+		t.Fatalf("Failed to create archive: %v", err)
+	}
+
+	if err := archive.Extract(zipPath, extractPath); err != nil {
+		t.Fatalf("Failed to extract %q in %q", zipPath, extractPath)
+	}
+
+	pathsToCheck := []string{
+		filepath.Join(extractPath, "a/sub1.txt"),
+		filepath.Join(extractPath, "a/b/c/sub2.txt"),
+	}
+
+	for _, p := range pathsToCheck {
+		if _, err := os.Stat(p); err != nil {
+			t.Fatalf("Failed to retrieve extracted file %q: %v", p, err)
+		}
+	}
+}