<refactor, test>(core, test): core improved and test gpg alone mode

1. let modules known their channels.
2. let factory create a channel.
3. reduce dumplicate code.
4. add type check for function object.
5. test gpg alone mode.
6. remove some asserts.
7. rename importexportor to importexporter.
8. move args in gpg context constructor to a struct.

1 files changed, 4 insertions, 2 deletions

diff --git a/src/gpg/function/GpgKeyGetter.h b/src/gpg/function/GpgKeyGetter.h
index 3af51815..fcd518d3 100644
--- a/src/gpg/function/GpgKeyGetter.h
+++ b/src/gpg/function/GpgKeyGetter.h
@@ -33,7 +33,9 @@ namespace GpgFrontend {
 
 class GpgKeyGetter : public SingletonFunctionObject<GpgKeyGetter> {
  public:
-  GpgKeyGetter() = default;
+  explicit GpgKeyGetter(
+      int channel = SingletonFunctionObject::GetDefaultChannel())
+      : SingletonFunctionObject<GpgKeyGetter>(channel) {}
 
   GpgKey GetKey(const std::string& fpr);
 
@@ -49,7 +51,7 @@ class GpgKeyGetter : public SingletonFunctionObject<GpgKeyGetter> {
 
  private:
   GpgContext& ctx =
-      GpgContext::GetInstance(SingletonFunctionObject::GetDefaultChannel());
+      GpgContext::GetInstance(SingletonFunctionObject::GetChannel());
 };
 }  // namespace GpgFrontend