Jest File Caching Patches

jest-config+27.0.6.patch

diff --git a/node_modules/jest-config/build/Descriptions.js b/node_modules/jest-config/build/Descriptions.js
index bb1d541..0400d8d 100644
--- a/node_modules/jest-config/build/Descriptions.js
+++ b/node_modules/jest-config/build/Descriptions.js
@@ -99,7 +99,8 @@ const descriptions = {
     'Indicates whether each individual test should be reported during the run',
   watchPathIgnorePatterns:
     'An array of regexp patterns that are matched against all source file paths before re-running tests in watch mode',
-  watchman: 'Whether to use watchman for file crawling'
+  watchman: 'Whether to use watchman for file crawling',
+  skipFileCache: 'An array of regexp pattern strings used to determine which files not to cache. This is useful when tests generate source files dynamically.'
 };
 var _default = descriptions;
 exports.default = _default;
diff --git a/node_modules/jest-config/build/ValidConfig.js b/node_modules/jest-config/build/ValidConfig.js
index 167b8c0..cbdf214 100644
--- a/node_modules/jest-config/build/ValidConfig.js
+++ b/node_modules/jest-config/build/ValidConfig.js
@@ -182,7 +182,8 @@ const initialOptions = {
       }
     ]
   ],
-  watchman: true
+  watchman: true,
+  skipFileCache: []
 };
 var _default = initialOptions;
 exports.default = _default;
diff --git a/node_modules/jest-config/build/index.js b/node_modules/jest-config/build/index.js
index ce8c60c..b937c21 100644
--- a/node_modules/jest-config/build/index.js
+++ b/node_modules/jest-config/build/index.js
@@ -354,7 +354,8 @@ const groupOptions = options => ({
     transform: options.transform,
     transformIgnorePatterns: options.transformIgnorePatterns,
     unmockedModulePathPatterns: options.unmockedModulePathPatterns,
-    watchPathIgnorePatterns: options.watchPathIgnorePatterns
+    watchPathIgnorePatterns: options.watchPathIgnorePatterns,
+    skipFileCache: options.skipFileCache
   })
 });
 
diff --git a/node_modules/jest-config/build/normalize.js b/node_modules/jest-config/build/normalize.js
index 969092c..47d3efb 100644
--- a/node_modules/jest-config/build/normalize.js
+++ b/node_modules/jest-config/build/normalize.js
@@ -937,6 +937,7 @@ async function normalize(
       case 'transformIgnorePatterns':
       case 'watchPathIgnorePatterns':
       case 'unmockedModulePathPatterns':
+      case 'skipFileCache':
         value = normalizeUnmockedModulePathPatterns(oldOptions, key);
         break;
 

jest-runtime+27.0.6.patch

diff --git a/node_modules/jest-runtime/build/index.js b/node_modules/jest-runtime/build/index.js
index 045907f..8df3933 100644
--- a/node_modules/jest-runtime/build/index.js
+++ b/node_modules/jest-runtime/build/index.js
@@ -806,6 +806,7 @@ class Runtime {
       moduleRegistry = this._moduleRegistry;
     }
 
+    this.invalidateFileCacheIfApplicable(modulePath, moduleRegistry)
     const module = moduleRegistry.get(modulePath);
 
     if (module) {
@@ -1409,6 +1410,19 @@ class Runtime {
     this._currentlyExecutingModulePath = lastExecutingModulePath;
   }
 
+  invalidateFileCacheIfApplicable(moduleName, moduleRegistry) {
+    if (!this._config.skipFileCache || this._config.skipFileCache.length == 0){ return }
+    for (const cacheSkipPattern of this._config.skipFileCache){
+      if (new RegExp(cacheSkipPattern).test(moduleName)){
+        moduleRegistry.delete(moduleName)
+        this._cacheFS.delete(moduleName)
+        this._fileTransforms.delete(moduleName)
+        this._sourceMapRegistry.delete(moduleName)
+        return
+      }
+    }
+  }
+
   transformFile(filename, options) {
     const source = this.readFile(filename);