add spec of ActiveRecord API

spec/findable/base_spec.rb

@@ -1,5 +1,75 @@
 require "spec_helper"
 
 describe Findable::Base do
+  include_context "TemporaryModel"
+  include_context "ReadModel"
+
+  describe ".primary_key" do
+    it { expect(model.primary_key).to eq("id") }
+  end
+
+  describe ".column_names" do
+    it { expect(model.column_names).to eq([:id, :name]) }
+  end
+
+  describe ".all" do
+    it { expect(read_model.all).to be_kind_of(Array) }
+    it { expect(read_model.all.size).to eq(1) }
+  end
+
+  describe ".find" do
+    it { expect(read_model.find(id)).to be_kind_of(read_model) }
+    it { expect(read_model.find([id])).to be_kind_of(Array) }
+    it {
+      expect {
+        read_model.find(invalid_id)
+      }.to raise_error(Findable::RecordNotFound)
+    }
+  end
+
+  describe ".find_by" do
+    it { expect(read_model.find_by(id: id)).to be_kind_of(read_model) }
+    it { expect(read_model.find_by(id: invalid_id)).to be_nil }
+    it { expect(read_model.find_by(id: id, name: name)).to be_kind_of(read_model) }
+    it { expect(read_model.find_by(id: id, name: invalid_name)).to be_nil }
+    it { expect(read_model.find_by(name: name)).to be_kind_of(read_model) }
+    it { expect(read_model.find_by(name: invalid_name)).to be_nil }
+    it { expect(read_model.find_by(id)).to be_kind_of(read_model) }
+    it { expect(read_model.find_by(invalid_id)).to be_nil }
+  end
+
+  describe ".find_by!" do
+    it {
+      expect {
+        read_model.find_by!(id: id)
+      }.not_to raise_error
+    }
+    it {
+      expect {
+        read_model.find_by!(id: invalid_id)
+      }.to raise_error(Findable::RecordNotFound)
+    }
+  end
+
+  describe ".where" do
+    it { expect(read_model.where(id: id)).to be_kind_of(Array) }
+    it { expect(read_model.where(id: id).first).to be_kind_of(read_model) }
+    it { expect(read_model.where(id: invalid_id)).to be_empty }
+    it { expect(read_model.where(id: id, name: name)).to be_kind_of(Array) }
+    it { expect(read_model.where(id: id, name: name).first).to be_kind_of(read_model) }
+    it { expect(read_model.where(id: invalid_id, name: name)).to be_empty }
+    it { expect(read_model.where(name: name)).to be_kind_of(Array) }
+    it { expect(read_model.where(name: name).first).to be_kind_of(read_model) }
+    it { expect(read_model.where(name: invalid_name)).to be_empty }
+  end
+
+  describe ".create" do
+    it {
+      expect {
+        model.create(name: "example")
+      }.to change { model.count }.by(1)
+    }
+    it { expect(model).to respond_to(:create!) }
+  end
 end
 

spec/support/shard_contexts.rb

@@ -9,3 +9,11 @@
   let(:model) { Size }
 end
 
+shared_context "ReadModel" do
+  let(:read_model) { Group }
+  let(:id) { 1 }
+  let(:invalid_id) { 2 }
+  let(:name) { "group1" }
+  let(:invalid_name) { "invalid" }
+end
+