add tests for findPluginInfo

__tests__/command_helpers/__snapshots__/findPluginInfo.ts.snap

@@ -0,0 +1,12 @@
+// Jest Snapshot v1, https://goo.gl/fbAQLP
+
+exports[`findPluginInfo Function can find plugins 1`] = `
+Object {
+  "plugin": Object {
+    "check": [Function],
+    "report": [Function],
+    "snapshot": [Function],
+  },
+  "success": true,
+}
+`;

__tests__/command_helpers/findPluginInfo.ts

@@ -0,0 +1,37 @@
+const findPluginInfo = require('../../src/extensions/functions/findPluginInfo')
+const examplePlugin = require('examplePlugin')
+const mockContext = examplePlugin(require('mockContext'))
+
+describe('findPluginInfo Function', () => {
+  test('can fail to find plugins', () => {
+    const rule = {
+      rule: 'custom',
+      plugin: 'FAKE',
+      name: 'checkThing'
+    }
+    const customPluginRule = findPluginInfo(rule, mockContext)
+    expect(customPluginRule).toEqual({ message: "Plugin not found 'FAKE'", success: false })
+  }
+
+  test('can fail to find plugins', () => {
+    const rule = {
+      rule: 'custom',
+      plugin: 'Example Plugin',
+      name: 'FAKE'
+    }
+    const customPluginRule = findPluginInfo(rule, mockContext)
+    expect(customPluginRule.message).toEqual("NOT FOUND: Custom rule from 'Example Plugin' plugin with check function 'FAKE'")
+    expect(customPluginRule.success).toBeFalsy()
+  }
+
+  test('can find plugins', () => {
+    const rule = {
+      rule: 'custom',
+      plugin: 'Example Plugin',
+      name: 'checkThing'
+    }
+    const customPluginRule = findPluginInfo(rule, mockContext)
+    expect(customPluginRule.success).toBeTruthy()
+    expect(customPluginRule).toMatchSnapshot()
+  }
+})