1 files changed, 49 insertions, 0 deletions
diff --git a/spec/functions/loadjson_spec.rb b/spec/functions/loadjson_spec.rb
new file mode 100644
index 0000000..a00dff9
--- /dev/null
+++ b/spec/functions/loadjson_spec.rb
@@ -0,0 +1,49 @@
+require 'spec_helper'
+
+describe 'loadjson' do
+  it { is_expected.not_to eq(nil) }
+  it { is_expected.to run.with_params().and_raise_error(ArgumentError, /wrong number of arguments/i) }
+
+  describe "when calling with valid arguments" do
+    before :each do
+      if RSpec.configuration.puppet_future
+        allow(File).to receive(:read).with(/\/stdlib\/metadata.json/, {:encoding=>"utf-8"}).and_return('{"name": "puppetlabs-stdlib"}')
+      else
+        allow(File).to receive(:read).with(/\/stdlib\/metadata.json/).and_return('{"name": "puppetlabs-stdlib"}')
+      end
+    end
+
+    context 'when a non-existing file is specified' do
+      let(:filename) { '/tmp/doesnotexist' }
+      before {
+        allow(File).to receive(:exists?).with(filename).and_return(false).once
+        allow(PSON).to receive(:load).never
+      }
+      it { is_expected.to run.with_params(filename, {'default' => 'value'}).and_return({'default' => 'value'}) }
+    end
+
+    context 'when an existing file is specified' do
+      let(:filename) { '/tmp/doesexist' }
+      let(:data) { { 'key' => 'value' } }
+      let(:json) { '{"key":"value"}' }
+      before {
+        allow(File).to receive(:exists?).with(filename).and_return(true).once
+        allow(File).to receive(:read).with(filename).and_return(json).once
+        allow(File).to receive(:read).with(filename).and_return(json).once
+        allow(PSON).to receive(:load).with(json).and_return(data).once
+      }
+      it { is_expected.to run.with_params(filename).and_return(data) }
+    end
+
+    context 'when the file could not be parsed' do
+      let(:filename) { '/tmp/doesexist' }
+      let(:json) { '{"key":"value"}' }
+      before {
+        allow(File).to receive(:exists?).with(filename).and_return(true).once
+        allow(File).to receive(:read).with(filename).and_return(json).once
+        allow(PSON).to receive(:load).with(json).once.and_raise StandardError, 'Something terrible have happened!'
+      }
+      it { is_expected.to run.with_params(filename, {'default' => 'value'}).and_return({'default' => 'value'}) }
+    end
+  end
+end