Make a fix for local process checking for platforms

CHANGELOG.md

@@ -16,9 +16,9 @@
 - Adds `html_url` to the PR JSON declaration - [@orta][]
 - Adds a way for a sub-process to tell danger-js that it wants a copy of the DSL. This is a potential fix for when you
   have a process that might not be ready to grab the DSL instantly from danger-js. The subprocess can print the message
-  `danger://send-dsl` to stdout and danger-js will re-send the DSL via STDIN. - [@orta][]
-
-These two are to try and figure out [danger/swift#108](https://github.com/danger/swift/issues/108).
+  `danger://send-dsl` to stdout and danger-js will re-send the DSL via STDIN.
+  [danger/swift#108](https://github.com/danger/swift/issues/108). - [@orta][]
+- Allows a FakeCI to get a FakePlatform, should fix [#767](https://github.com/danger/danger-js/issues/767) - [@orta][]
 
 # 6.1.4
 

source/ci_source/providers/Fake.ts

@@ -19,6 +19,7 @@ export class FakeCI implements CISource {
   get isCI(): boolean {
     return ensureEnvKeysExist(this.env, ["DANGER_FAKE_CI"]) || ensureEnvKeysExist(this.env, ["DANGER_LOCAL_NO_CI"])
   }
+
   get isPR(): boolean {
     return true
   }

source/ci_source/providers/index.ts

@@ -19,13 +19,13 @@ import { Travis } from "./Travis"
 import { VSTS } from "./VSTS"
 
 const providers = [
+  FakeCI,
   GitHubActions,
   Travis,
   Circle,
   Semaphore,
   Nevercode,
   Jenkins,
-  FakeCI,
   Surf,
   DockerCloud,
   Codeship,

source/platforms/platform.ts

@@ -8,6 +8,7 @@ import { DangerResults } from "../dsl/DangerResults"
 import { ExecutorOptions } from "../runner/Executor"
 import { DangerRunner } from "../runner/runners/runner"
 import chalk from "chalk"
+import { FakePlatform } from "./FakePlatform"
 
 /** A type that represents the downloaded metadata about a code review session */
 export type Metadata = any
@@ -123,6 +124,11 @@ export function getPlatformForEnv(env: Env, source: CISource, requireAuth = true
     return github
   }
 
+  // Support automatically returning a fake platform if you pass a Fake CI
+  if (source.name === "Fake Testing CI") {
+    return new FakePlatform()
+  }
+
   console.error("The DANGER_GITHUB_API_TOKEN/DANGER_BITBUCKETSERVER_HOST environmental variable is missing")
   console.error("Without an api token, danger will be unable to comment on a PR")
   throw new Error("Cannot use authenticated API requests.")