1 files changed, 75 insertions, 0 deletions
diff --git a/spec/unit/zero/request/parameter/element_reader_spec.rb b/spec/unit/zero/request/parameter/element_reader_spec.rb
new file mode 100644
index 0000000..61b2668
--- /dev/null
+++ b/spec/unit/zero/request/parameter/element_reader_spec.rb
@@ -0,0 +1,75 @@
+require 'spec_helper'
+
+describe Zero::Request::Parameter, '#[]' do
+  let(:object) { described_class.new(env) }
+  subject { object[key] }
+
+  let(:query)  { '' }
+  let(:post)   { {} }
+  let(:custom) { {} }
+  let(:env_get) { environment("/foo?#{query}", {:custom => custom})}
+  let(:env_post) { environment("/foo?#{query}",{:payload => post, :custom => custom}) }
+
+  let(:key)        { 'foo' }
+  let(:value)      { 'correct' }
+  let(:fake_value) { 'wrong' }
+
+  shared_examples_for 'a parameter' do
+    it { should eq(value) }
+  end
+
+  context 'with custom set key' do
+    let(:env) { env_get }
+    before do
+      object[key] = value
+    end
+
+    it_behaves_like 'a parameter'
+  end
+
+  context 'with a custom set key from an environment' do
+    let(:custom) { {key => value} }
+    let(:env) { env_get }
+
+    it_behaves_like 'a parameter'
+  end
+
+  context 'with query parameters' do
+    let(:query) { "#{key}=#{value}" }
+    let(:env) { env_get }
+
+    it_behaves_like 'a parameter'
+  end
+
+  context 'with query and custom parameter' do
+    let(:custom) { {key => value} }
+    let(:query)  { "#{key}=#{fake_value}" }
+    let(:env) { env_get }
+
+    it_behaves_like 'a parameter'
+  end
+
+  context 'with query and post parameter' do
+    let(:post)  { {key => value} }
+    let(:query) { "#{key}=#{fake_value}" }
+    let(:env)   { env_post }
+
+    it_behaves_like 'a parameter'
+  end
+
+  context 'with query, post and custom parameter' do
+    let(:custom) { {key => value} }
+    let(:query)  { "#{key}=#{fake_value}" }
+    let(:post)   { {key => fake_value} }
+    let(:env)    { env_post }
+
+    it_behaves_like 'a parameter'
+  end
+
+  context 'with no parameter set' do
+    let(:env) { env_get }
+    let(:value) { nil }
+
+    it_behaves_like 'a parameter'
+  end
+end