Unverified Commit 4085f24e authored by Philip Taron's avatar Philip Taron
Browse files

lib.makeScope: add tests for callPackage overriding 

Test that:
- makeScope provides a default callPackage
- the scope function can override callPackage
- the override persists through overrideScope
parent f08c835b

lib/tests/misc.nix

+52 −0
Original line number Diff line number Diff line
@@ -4789,6 +4789,58 @@ runTests { 
      };

    };



  # Check that makeScope provides a default callPackage

  testMakeScopeDefaultCallPackage =

    let

      scope = lib.makeScope lib.callPackageWith (self: {

        foo = self.callPackage ({ }: "foo-value") { };

      });

    in

    {

      expr = scope.foo;

      expected = "foo-value";

    };



  # Check that callPackage can be overridden by the scope function

  testMakeScopeOverrideCallPackage =

    let

      customCallPackage =

        _self: fn: args:

        (fn args) + "-custom";

      scope = lib.makeScope lib.callPackageWith (self: {

        callPackage = customCallPackage self;

        foo = self.callPackage ({ }: "foo-value") { };

      });

    in

    {

      expr = scope.foo;

      expected = "foo-value-custom";

    };



  # Check that overriding callPackage persists through overrideScope

  testMakeScopeOverrideCallPackagePersistsThroughOverrideScope =

    let

      customCallPackage =

        _self: fn: args:

        (fn args) + "-custom";

      scope = lib.makeScope lib.callPackageWith (self: {

        callPackage = customCallPackage self;

        foo = self.callPackage ({ }: "foo-value") { };

      });

      overridden = scope.overrideScope (

        _final: _prev: {

          bar = scope.callPackage ({ }: "bar-value") { };

        }

      );

    in

    {

      expr = { inherit (overridden) foo bar; };

      expected = {

        foo = "foo-value-custom";

        bar = "bar-value-custom";

      };

    };



  testFilesystemResolveDefaultNixFile1 = {

    expr = lib.filesystem.resolveDefaultNix ./foo.nix;

    expected = ./foo.nix;