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diff --git a/knife/spec/unit/knife/key_create_spec.rb b/knife/spec/unit/knife/key_create_spec.rb
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+++ b/knife/spec/unit/knife/key_create_spec.rb
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+#
+# Author:: Tyler Cloke (<tyler@chef.io>)
+# Copyright:: Copyright (c) Chef Software Inc.
+# License:: Apache License, Version 2.0
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+require "knife_spec_helper"
+require "chef/knife/user_key_create"
+require "chef/knife/client_key_create"
+require "chef/knife/key_create"
+require "chef/key"
+
+describe "key create commands that inherit knife" do
+  shared_examples_for "a key create command" do
+    let(:stderr) { StringIO.new }
+    let(:params) { [] }
+    let(:service_object) { instance_double(Chef::Knife::KeyCreate) }
+    let(:command) do
+      c = described_class.new([])
+      c.ui.config[:disable_editing] = true
+      allow(c.ui).to receive(:stderr).and_return(stderr)
+      allow(c.ui).to receive(:stdout).and_return(stderr)
+      allow(c).to receive(:show_usage)
+      c
+    end
+
+    context "after apply_params! is called with valid args" do
+      let(:params) { ["charmander"] }
+      before do
+        command.apply_params!(params)
+      end
+
+      context "when the service object is called" do
+        it "creates a new instance of Chef::Knife::KeyCreate with the correct args" do
+          expect(Chef::Knife::KeyCreate).to receive(:new)
+            .with("charmander", command.actor_field_name, command.ui, command.config)
+            .and_return(service_object)
+          command.service_object
+        end
+      end # when the service object is called
+    end # after apply_params! is called with valid args
+  end # a key create command
+
+  describe Chef::Knife::UserKeyCreate do
+    it_should_behave_like "a key create command"
+    # defined in key_helper.rb
+    it_should_behave_like "a knife key command" do
+      let(:service_object) { instance_double(Chef::Knife::KeyCreate) }
+      let(:params) { ["charmander"] }
+    end
+  end
+
+  describe Chef::Knife::ClientKeyCreate do
+    it_should_behave_like "a key create command"
+    # defined in key_helper.rb
+    it_should_behave_like "a knife key command" do
+      let(:service_object) { instance_double(Chef::Knife::KeyCreate) }
+      let(:params) { ["charmander"] }
+    end
+  end
+end
+
+describe Chef::Knife::KeyCreate do
+  let(:public_key) do
+    "-----BEGIN PUBLIC KEY-----
+MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAvPo+oNPB7uuNkws0fC02
+KxSwdyqPLu0fhI1pOweNKAZeEIiEz2PkybathHWy8snSXGNxsITkf3eyvIIKa8OZ
+WrlqpI3yv/5DOP8HTMCxnFuMJQtDwMcevlqebX4bCxcByuBpNYDcAHjjfLGSfMjn
+E5lZpgYWwnpic4kSjYcL9ORK9nYvlWV9P/kCYmRhIjB4AhtpWRiOfY/TKi3P2LxT
+IjSmiN/ihHtlhV/VSnBJ5PzT/lRknlrJ4kACoz7Pq9jv+aAx5ft/xE9yDa2DYs0q
+Tfuc9dUYsFjptWYrV6pfEQ+bgo1OGBXORBFcFL+2D7u9JYquKrMgosznHoEkQNLo
+0wIDAQAB
+-----END PUBLIC KEY-----"
+  end
+  let(:config) { {} }
+  let(:actor) { "charmander" }
+  let(:ui) { instance_double("Chef::Knife::UI") }
+
+  shared_examples_for "key create run command" do
+    let(:key_create_object) do
+      described_class.new(actor, actor_field_name, ui, config)
+    end
+
+    context "when public_key and key_name weren't passed" do
+      it "raises a Chef::Exceptions::KeyCommandInputError with the proper error message" do
+        expect { key_create_object.run }.to raise_error(Chef::Exceptions::KeyCommandInputError, key_create_object.public_key_or_key_name_error_msg)
+      end
+    end
+
+    context "when the command is run" do
+      let(:expected_hash) do
+        {
+          actor_field_name => "charmander",
+        }
+      end
+
+      before do
+        allow(File).to receive(:read).and_return(public_key)
+        allow(File).to receive(:expand_path)
+
+        allow(key_create_object).to receive(:output_private_key_to_file)
+        allow(key_create_object).to receive(:display_private_key)
+        allow(key_create_object).to receive(:edit_hash).and_return(expected_hash)
+        allow(key_create_object).to receive(:create_key_from_hash).and_return(Chef::Key.from_hash(expected_hash))
+        allow(key_create_object).to receive(:display_info)
+      end
+
+      context "when a valid hash is passed" do
+        let(:key_name) { "charmander-key" }
+        let(:valid_expiration_date) { "2020-12-24T21:00:00Z" }
+        let(:expected_hash) do
+          {
+            actor_field_name => "charmander",
+            "public_key" => public_key,
+            "expiration_date" => valid_expiration_date,
+            "key_name" => key_name,
+          }
+        end
+        before do
+          key_create_object.config[:public_key] = "public_key_path"
+          key_create_object.config[:expiration_Date] = valid_expiration_date,
+          key_create_object.config[:key_name] = key_name
+        end
+
+        it "creates the proper hash" do
+          expect(key_create_object).to receive(:create_key_from_hash).with(expected_hash)
+          key_create_object.run
+        end
+      end
+
+      context "when public_key is passed" do
+        let(:expected_hash) do
+          {
+            actor_field_name => "charmander",
+            "public_key" => public_key,
+          }
+        end
+        before do
+          key_create_object.config[:public_key] = "public_key_path"
+        end
+
+        it "calls File.expand_path with the public_key input" do
+          expect(File).to receive(:expand_path).with("public_key_path")
+          key_create_object.run
+        end
+      end # when public_key is passed
+
+      context "when public_key isn't passed and key_name is" do
+        let(:expected_hash) do
+          {
+            actor_field_name => "charmander",
+            "name" => "charmander-key",
+            "create_key" => true,
+          }
+        end
+        before do
+          key_create_object.config[:key_name] = "charmander-key"
+        end
+
+        it "should set create_key to true" do
+          expect(key_create_object).to receive(:create_key_from_hash).with(expected_hash)
+          key_create_object.run
+        end
+      end
+
+      context "when the server returns a private key" do
+        let(:expected_hash) do
+          {
+            actor_field_name => "charmander",
+            "public_key" => public_key,
+            "private_key" => "super_private",
+          }
+        end
+
+        before do
+          key_create_object.config[:public_key] = "public_key_path"
+        end
+
+        context "when file is not passed" do
+          it "calls display_private_key with the private_key" do
+            expect(key_create_object).to receive(:display_private_key).with("super_private")
+            key_create_object.run
+          end
+        end
+
+        context "when file is passed" do
+          before do
+            key_create_object.config[:file] = "/fake/file"
+          end
+
+          it "calls output_private_key_to_file with the private_key" do
+            expect(key_create_object).to receive(:output_private_key_to_file).with("super_private")
+            key_create_object.run
+          end
+        end
+      end # when the server returns a private key
+    end # when the command is run
+  end # key create run command"
+
+  context "when actor_field_name is 'user'" do
+    it_should_behave_like "key create run command" do
+      let(:actor_field_name) { "user" }
+    end
+  end
+
+  context "when actor_field_name is 'client'" do
+    it_should_behave_like "key create run command" do
+      let(:actor_field_name) { "client" }
+    end
+  end
+end