Add specs

spec/redash_exporter/fetcher_spec.rb

@@ -1,4 +1,51 @@
 # frozen_string_literal: true
 
 RSpec.describe RedashExporter::Fetcher do
+  describe "#initialize" do
+    subject { RedashExporter::Fetcher.new('http://example.org', 'api_key', page: 1, page_size: 2) }
+    it { is_expected.to be_a RedashExporter::Fetcher }
+  end
+
+  describe '#fetch' do
+    let(:target) { RedashExporter::Fetcher.new('http://example.com', 'api_key', query) }
+    let(:query) {  { page: 1, page_size: 3 } }
+
+    subject { target.fetch }
+
+    before do
+      allow(target).to receive(:request).and_return(res)
+    end
+
+    context 'Old Redash API' do
+      let(:query) { {} }
+      let(:res) do
+        [
+          JSON.parse(query_json),
+          JSON.parse(query_json)
+        ]
+      end
+
+      it 'calls one request' do
+        expect(target).to receive(:request).once
+        expect(subject).to eq res
+      end
+    end
+
+    context 'Latest Redash API' do
+      let(:query) { { page: 1, page_size: 1 } }
+      let(:res) do
+        {
+          count: 10,
+          page: 1,
+          page_size: 1,
+          results: [JSON.parse(query_json)]
+        }
+      end
+
+      it 'calls request "count" times' do
+        expect(target).to receive(:request).exactly(10).times
+        expect(subject.size).to eq 10
+      end
+    end
+  end
 end

spec/redash_exporter/queries_spec.rb

@@ -1,4 +1,18 @@
 # frozen_string_literal: true
 
 RSpec.describe RedashExporter::Queries do
+  describe '#initialize' do
+    subject { RedashExporter::Queries.new('http://example.com', 'api_key', 'destination') }
+    it { is_expected.to be_a RedashExporter::Queries }
+  end
+
+  describe '#fetch' do
+    let(:target) { RedashExporter::Queries.new('http://example.com', 'api_key', 'destination') }
+    subject { target.fetch }
+    before do
+      mock = double('Fetcher mock', fetch: [])
+      allow(RedashExporter::Fetcher).to receive(:new).and_return(mock)
+    end
+    it { is_expected.to eq [] }
+  end
 end