Fix load_module_metadata and loadjson tests to pass with fully deployed module

When replacing the lib/ and manifests/ symlinks in the fixtures with
a proper top-level symlink, puppet 4 starts loading the metadata.json
before loading functions, which confuses these tests. Added more specific
expectations, and provide data for that call.

spec/functions/load_module_metadata_spec.rb

@@ -5,25 +5,34 @@ describe 'load_module_metadata' do
   it { is_expected.to run.with_params().and_raise_error(Puppet::ParseError, /wrong number of arguments/i) }
   it { is_expected.to run.with_params("one", "two", "three").and_raise_error(Puppet::ParseError, /wrong number of arguments/i) }
 
-  it "should json parse the file" do
-     allow(scope).to receive(:function_get_module_path).with(['science']).and_return('/path/to/module/')
-     allow(File).to receive(:exists?).with(/metadata.json/).and_return(true)
-     allow(File).to receive(:read).with(/metadata.json/).and_return('{"name": "spencer-science"}')
+  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
+    it "should json parse the file" do
+      allow(scope).to receive(:function_get_module_path).with(['science']).and_return('/path/to/module/')
+      allow(File).to receive(:exists?).with('/path/to/module/metadata.json').and_return(true)
+      allow(File).to receive(:read).with('/path/to/module/metadata.json').and_return('{"name": "spencer-science"}')
 
-     result = subject.call(['science'])
-     expect(result['name']).to eq('spencer-science')
-  end
+      result = subject.call(['science'])
+      expect(result['name']).to eq('spencer-science')
+    end
 
-  it "should fail by default if there is no metadata.json" do
-     allow(scope).to receive(:function_get_module_path).with(['science']).and_return('/path/to/module/')
-     allow(File).to receive(:exists?).with(/metadata.json/).and_return(false)
-     expect {subject.call(['science'])}.to raise_error(Puppet::ParseError)
-  end
+    it "should fail by default if there is no metadata.json" do
+      allow(scope).to   receive(:function_get_module_path).with(['science']).and_return('/path/to/module/')
+      allow(File).to receive(:exists?).with('/path/to/module/metadata.json').and_return(false)
+      expect {subject.call(['science'])}.to raise_error(Puppet::ParseError)
+    end
 
-  it "should return nil if user allows empty metadata.json" do
-     allow(scope).to receive(:function_get_module_path).with(['science']).and_return('/path/to/module/')
-     allow(File).to receive(:exists?).with(/metadata.json/).and_return(false)
-     result = subject.call(['science', true])
-     expect(result).to eq({})
+    it "should return nil if user allows empty metadata.json" do
+      allow(scope).to receive(:function_get_module_path).with(['science']).and_return('/path/to/module/')
+      allow(File).to receive(:exists?).with('/path/to/module/metadata.json').and_return(false)
+      result = subject.call(['science', true])
+      expect(result).to eq({})
+    end
   end
 end

spec/functions/loadjson_spec.rb

@@ -4,35 +4,46 @@ 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) }
 
-  context 'when a non-existing file is specified' do
-    let(:filename) { '/tmp/doesnotexist' }
-    before {
-      File.expects(:exists?).with(filename).returns(false).once
-      PSON.expects(:load).never
-    }
-    it { is_expected.to run.with_params(filename, {'default' => 'value'}).and_return({'default' => 'value'}) }
-  end
+  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 an existing file is specified' do
-    let(:filename) { '/tmp/doesexist' }
-    let(:data) { { 'key' => 'value' } }
-    let(:json) { '{"key":"value"}' }
-    before {
-      File.expects(:exists?).with(filename).returns(true).once
-      File.expects(:read).with(filename).returns(json).once
-      PSON.expects(:load).with(json).returns(data).once
-    }
-    it { is_expected.to run.with_params(filename).and_return(data) }
-  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 the file could not be parsed' do
-    let(:filename) { '/tmp/doesexist' }
-    let(:json) { '{"key":"value"}' }
-    before {
-      File.expects(:exists?).with(filename).returns(true).once
-      File.expects(:read).with(filename).returns(json).once
-      PSON.stubs(:load).with(json).once.raises StandardError, 'Something terrible have happened!'
-    }
-    it { is_expected.to run.with_params(filename, {'default' => 'value'}).and_return({'default' => 'value'}) }
+    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