uboot: (firmwareOdroidC2/C4) don't invoke patch tool, use patches = [] instead

https://github.com/NixOS/nixpkgs/blob/master/pkgs/stdenv/generic/setup.sh#L948
this can do it nicely.

Signed-off-by: Anton Arapov <anton@deadbeef.mx>

nixos/tests/krb5/default.nix

@@ -0,0 +1,5 @@
+{ system ? builtins.currentSystem }:
+{
+  example-config = import ./example-config.nix { inherit system; };
+  deprecated-config = import ./deprecated-config.nix { inherit system; };
+}

nixos/tests/krb5/deprecated-config.nix

@@ -0,0 +1,50 @@
+# Verifies that the configuration suggested in deprecated example values
+# will result in the expected output.
+
+import ../make-test-python.nix ({ pkgs, ...} : {
+  name = "krb5-with-deprecated-config";
+  meta = with pkgs.lib.maintainers; {
+    maintainers = [ eqyiel ];
+  };
+
+  nodes.machine =
+    { ... }: {
+      krb5 = {
+        enable = true;
+        defaultRealm = "ATHENA.MIT.EDU";
+        domainRealm = "athena.mit.edu";
+        kdc = "kerberos.mit.edu";
+        kerberosAdminServer = "kerberos.mit.edu";
+      };
+    };
+
+  testScript =
+    let snapshot = pkgs.writeText "krb5-with-deprecated-config.conf" ''
+      [libdefaults]
+        default_realm = ATHENA.MIT.EDU
+
+      [realms]
+        ATHENA.MIT.EDU = {
+          admin_server = kerberos.mit.edu
+          kdc = kerberos.mit.edu
+        }
+
+      [domain_realm]
+        .athena.mit.edu = ATHENA.MIT.EDU
+        athena.mit.edu = ATHENA.MIT.EDU
+
+      [capaths]
+
+
+      [appdefaults]
+
+
+      [plugins]
+
+    '';
+  in ''
+    machine.succeed(
+        "diff /etc/krb5.conf ${snapshot}"
+    )
+  '';
+})

nixos/tests/krb5/example-config.nix

@@ -0,0 +1,112 @@
+# Verifies that the configuration suggested in (non-deprecated) example values
+# will result in the expected output.
+
+import ../make-test-python.nix ({ pkgs, ...} : {
+  name = "krb5-with-example-config";
+  meta = with pkgs.lib.maintainers; {
+    maintainers = [ eqyiel ];
+  };
+
+  nodes.machine =
+    { pkgs, ... }: {
+      krb5 = {
+        enable = true;
+        kerberos = pkgs.krb5Full;
+        libdefaults = {
+          default_realm = "ATHENA.MIT.EDU";
+        };
+        realms = {
+          "ATHENA.MIT.EDU" = {
+            admin_server = "athena.mit.edu";
+            kdc = [
+              "athena01.mit.edu"
+              "athena02.mit.edu"
+            ];
+          };
+        };
+        domain_realm = {
+          "example.com" = "EXAMPLE.COM";
+          ".example.com" = "EXAMPLE.COM";
+        };
+        capaths = {
+          "ATHENA.MIT.EDU" = {
+            "EXAMPLE.COM" = ".";
+          };
+          "EXAMPLE.COM" = {
+            "ATHENA.MIT.EDU" = ".";
+          };
+        };
+        appdefaults = {
+          pam = {
+            debug = false;
+            ticket_lifetime = 36000;
+            renew_lifetime = 36000;
+            max_timeout = 30;
+            timeout_shift = 2;
+            initial_timeout = 1;
+          };
+        };
+        plugins = {
+          ccselect = {
+            disable = "k5identity";
+          };
+        };
+        extraConfig = ''
+          [logging]
+            kdc          = SYSLOG:NOTICE
+            admin_server = SYSLOG:NOTICE
+            default      = SYSLOG:NOTICE
+        '';
+      };
+    };
+
+  testScript =
+    let snapshot = pkgs.writeText "krb5-with-example-config.conf" ''
+      [libdefaults]
+        default_realm = ATHENA.MIT.EDU
+
+      [realms]
+        ATHENA.MIT.EDU = {
+          admin_server = athena.mit.edu
+          kdc = athena01.mit.edu
+          kdc = athena02.mit.edu
+        }
+
+      [domain_realm]
+        .example.com = EXAMPLE.COM
+        example.com = EXAMPLE.COM
+
+      [capaths]
+        ATHENA.MIT.EDU = {
+          EXAMPLE.COM = .
+        }
+        EXAMPLE.COM = {
+          ATHENA.MIT.EDU = .
+        }
+
+      [appdefaults]
+        pam = {
+          debug = false
+          initial_timeout = 1
+          max_timeout = 30
+          renew_lifetime = 36000
+          ticket_lifetime = 36000
+          timeout_shift = 2
+        }
+
+      [plugins]
+        ccselect = {
+          disable = k5identity
+        }
+
+      [logging]
+        kdc          = SYSLOG:NOTICE
+        admin_server = SYSLOG:NOTICE
+        default      = SYSLOG:NOTICE
+    '';
+  in ''
+    machine.succeed(
+        "diff /etc/krb5.conf ${snapshot}"
+    )
+  '';
+})