Fix installer_version_string to be an array on prerelease parameter.

2 files changed, 15 insertions, 1 deletions

diff --git a/lib/chef/knife/core/bootstrap_context.rb b/lib/chef/knife/core/bootstrap_context.rb
index e681d7a49b..ce062bdd25 100644
--- a/lib/chef/knife/core/bootstrap_context.rb
+++ b/lib/chef/knife/core/bootstrap_context.rb
@@ -135,7 +135,7 @@ CONFIG
         def latest_current_chef_version_string
           installer_version_string = nil
           if @config[:prerelease]
-            installer_version_string = "-p"
+            installer_version_string = ["-p"]
           else
             chef_version_string = if knife_config[:bootstrap_version]
               knife_config[:bootstrap_version]
diff --git a/spec/unit/knife/core/bootstrap_context_spec.rb b/spec/unit/knife/core/bootstrap_context_spec.rb
index 1291571358..af8fa3f698 100644
--- a/spec/unit/knife/core/bootstrap_context_spec.rb
+++ b/spec/unit/knife/core/bootstrap_context_spec.rb
@@ -205,4 +205,18 @@ EXPECTED
     end
   end
 
+  describe "prerelease" do
+    it "isn't set in the config_content by default" do
+      expect(bootstrap_context.config_content).not_to include("prerelease")
+    end
+
+    describe "when configured via cli" do
+      let(:config) {{:prerelease => true}}
+
+      it "uses CLI value" do
+        expect(bootstrap_context.latest_current_chef_version_string).to eq("-p")
+      end
+    end
+  end
+
 end