Rspec没有找到类方法(Rspec not finding class methods)

Rspec没有找到类方法(Rspec not finding class methods)

我正在为我的后端工作编写一些测试，我有一个奇怪的问题，rspec没有找到我的方法。

我写了一个简单的类和测试来说明问题：

app / interactors / tmp_test.rb：

class TmpTest def call a = 10 b = 5 b.substract_two return a + b end def substract_two c = self - 2 return c end end

spec / interactors / tmp_test.rb：

require 'rails_helper' describe TmpTest do context 'when doing the substraction' do it 'return the correct number' do expect(described_class.call).to eq(13) end end end

输出：

TmpTest when doing the substraction return the correct number (FAILED - 1) Failures: 1) TmpTest when doing the substraction return the correct number Failure/Error: expect(described_class.call).to eq(13) NoMethodError: undefined method `call' for TmpTest:Class # ./spec/interactors/tmp_test.rb:6:in `block (3 levels) in <top (required)>' Finished in 0.00177 seconds (files took 1.93 seconds to load) 1 example, 1 failure Failed examples: rspec ./spec/interactors/tmp_test.rb:5 # TmpTest when doing the substraction return the correct number

I'm writing some tests for my backend jobs and I'm having a weird issue with rspec not finding my methods.

I wrote a simple class & test to illustrate the issue :

app/interactors/tmp_test.rb :

class TmpTest def call a = 10 b = 5 b.substract_two return a + b end def substract_two c = self - 2 return c end end

spec/interactors/tmp_test.rb :

require 'rails_helper' describe TmpTest do context 'when doing the substraction' do it 'return the correct number' do expect(described_class.call).to eq(13) end end end

output:

TmpTest when doing the substraction return the correct number (FAILED - 1) Failures: 1) TmpTest when doing the substraction return the correct number Failure/Error: expect(described_class.call).to eq(13) NoMethodError: undefined method `call' for TmpTest:Class # ./spec/interactors/tmp_test.rb:6:in `block (3 levels) in <top (required)>' Finished in 0.00177 seconds (files took 1.93 seconds to load) 1 example, 1 failure Failed examples: rspec ./spec/interactors/tmp_test.rb:5 # TmpTest when doing the substraction return the correct number

最满意答案

它不是类方法，而是实例方法。 您的测试应如下所示：

describe TmpTest do subject(:instance) { described_class.new } context 'when doing the subtraction' do it 'returns the correct number' do expect(instance.call).to eq(13) end end end

It's not a class method, it's an instance method. Your test should look like this:

describe TmpTest do subject(:instance) { described_class.new } context 'when doing the subtraction' do it 'returns the correct number' do expect(instance.call).to eq(13) end end end