No file exists when watching

markis · Feb 1, 2018 · b798d97 · b798d97
1 parent 256bd51
commit b798d97
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Showing 2 changed files with 9 additions and 1 deletion.
diff --git a/__mocks__/fs.js b/__mocks__/fs.js
@@ -36,6 +36,7 @@ function watch() {
 
 fs.__addMockFile = __addMockFile;
 fs.__resetMockFiles = __resetMockFiles;
+fs.existsSync = function() { return false; };
 fs.readFileSync = readFileSync;
 fs.watch = watch;
 

diff --git a/src/index.ts b/src/index.ts
@@ -1,4 +1,4 @@
-import { readFileSync, watch } from 'fs';
+import { closeSync, existsSync, mkdirSync, openSync, readFileSync, watch } from 'fs';
 
 import { getLastError } from './errors';
 import {
@@ -34,6 +34,13 @@ function onRunComplete(globalConfig: Config, options: RatchetOptions) {
     const coverageSummaryPath = findCoverageSummaryPath(coverageDirectory);
     const jestConfigPath = findJestConfigPath(process.cwd(), process.argv);
 
+    if (!existsSync(coverageDirectory)) {
+      mkdirSync(coverageDirectory);
+    }
+    if (!existsSync(coverageSummaryPath)) {
+      closeSync(openSync(coverageSummaryPath, 'w'));
+    }
+
     const watcher = watch(coverageDirectory);
     watcher.once('change', () => {
       watcher.close();