better namespacing for assertions

pkg/integration/components/file_system.go

@@ -0,0 +1,26 @@
+package components
+
+import (
+	"fmt"
+	"os"
+)
+
+type FileSystem struct {
+	*assertionHelper
+}
+
+// This does _not_ check the files panel, it actually checks the filesystem
+func (self *FileSystem) PathPresent(path string) {
+	self.assertWithRetries(func() (bool, string) {
+		_, err := os.Stat(path)
+		return err == nil, fmt.Sprintf("Expected path '%s' to exist, but it does not", path)
+	})
+}
+
+// This does _not_ check the files panel, it actually checks the filesystem
+func (self *FileSystem) PathNotPresent(path string) {
+	self.assertWithRetries(func() (bool, string) {
+		_, err := os.Stat(path)
+		return os.IsNotExist(err), fmt.Sprintf("Expected path '%s' to not exist, but it does", path)
+	})
+}