Initial commit

spec/models/carto/analysis_node_spec.rb

@@ -0,0 +1,87 @@
+require 'spec_helper_min'
+
+describe Carto::AnalysisNode do
+  let(:analysis_definition) do
+    {
+      id: "a2",
+      type: "point-in-polygon",
+      options: { primary_source_name: "polygons_source" },
+      params: {
+        points_source: {
+          id: "paradas_metro_madrid",
+          type: "source",
+          params: { query: "SELECT * FROM paradas_metro_madrid" },
+          options: { table_name: "paradas_metro_madrid" }
+        },
+        polygons_source: {
+          id: "a1",
+          type: "buffer",
+          options: { kind: "car", time: "100", distance: "kilometers" },
+          params: {
+            source: {
+              id: "a0",
+              type: "source",
+              params: { query: "SELECT * FROM paradas_metro_madrid" },
+              options: { table_name: "paradas_metro_madrid" }
+            },
+            radius: 2000,
+            isolines: 1,
+            dissolved: false
+          }
+        }
+      }
+    }
+  end
+
+  before(:each) do
+    @node = Carto::AnalysisNode.new(analysis_definition)
+  end
+
+  it 'returns definition values from accessors' do
+    @node.id.should eq analysis_definition[:id]
+    @node.type.should eq analysis_definition[:type]
+    @node.params.should eq analysis_definition[:params]
+    @node.options.should eq analysis_definition[:options]
+  end
+
+  describe '#children' do
+    it 'returns all children of a node' do
+      @node.children.count.should eq 2
+      @node.children[0].id.should eq 'paradas_metro_madrid'
+      @node.children[1].id.should eq 'a1'
+    end
+
+    it 'returns an empty list when no childrens are found' do
+      @node.definition.delete(:params)
+      @node.children.should eq []
+    end
+  end
+
+  describe '#find_by_id' do
+    it 'finds root element' do
+      @node.find_by_id('a2').should eq @node
+    end
+
+    it 'finds direct children' do
+      found = @node.find_by_id('a1')
+      found.should be
+    end
+
+    it 'finds indirect descendants' do
+      found = @node.find_by_id('a0')
+      found.should be
+    end
+
+    it 'returns nil if not found' do
+      @node.find_by_id('404').should be_nil
+    end
+  end
+
+  describe '#source_descendants' do
+    it 'find all descendant of a node of type source' do
+      sources = @node.source_descendants
+      sources.count.should eq 2
+      sources.all?(&:source?).should be_true
+    end
+  end
+end