Files.app: Show 'no space' message if there is not enough space to import photos.

ui/file_manager/file_manager/foreground/js/import_controller_unittest.js

Index: ui/file_manager/file_manager/foreground/js/import_controller_unittest.js
diff --git a/ui/file_manager/file_manager/foreground/js/import_controller_unittest.js b/ui/file_manager/file_manager/foreground/js/import_controller_unittest.js
index 9e9fef5541e7498b53df9b940c38049d5d27d8f4..bcabcbc71dcee4604d00de8d2ba889eab1b837fb 100644
--- a/ui/file_manager/file_manager/foreground/js/import_controller_unittest.js
+++ b/ui/file_manager/file_manager/foreground/js/import_controller_unittest.js
@@ -116,7 +116,7 @@ function testGetCommandUpdate_InitiatesScan() {
   mediaScanner.assertScanCount(1);
 }
 
-function testUnmountInvalidatesScans() {
+function testGetCommandUpdate_NoSpace() {
   var controller = createController(
       VolumeManagerCommon.VolumeType.MTP,
       'mtp-volume',
@@ -133,12 +133,12 @@ function testUnmountInvalidatesScans() {
 
   controller.getCommandUpdate();
   mediaScanner.assertScanCount(1);
+  environment.setAvailableSpace(0);
+  mediaScanner.finalizeScans();
 
-  // Faux unmount the volume, then request an update again.
-  // A fresh new scan should be started.
-  environment.simulateUnmount();
-  controller.getCommandUpdate();
-  mediaScanner.assertScanCount(2);
+  var response = controller.getCommandUpdate();
+  assertTrue(response.visible);
+  assertFalse(response.executable);
 }
 
 function testGetCommandUpdate_CanExecuteAfterScanIsFinalized() {
@@ -335,9 +335,6 @@ TestControllerEnvironment = function(volumeInfo, directory) {
   /** @private {!DirectoryEntry} */
   this.directory_ = directory;
 
-  /** @private {function(string)} */
-  this.volumeUnmountListener_;
-
   /** @public {!DirectoryEntry} */
   this.selection = [];
 
@@ -351,6 +348,9 @@ TestControllerEnvironment = function(volumeInfo, directory) {
   this.directoryWasSetPromise_ = new Promise(function(resolve, reject) {
     this.directoryWasSet_ = resolve;
   }.bind(this));
+
+  /** @private {number} */
+  this.availableSpace_ = /* 1GB */ 1024 * 1024 * 1024;

[Steve McKay, 2015/01/26 18:08:44]

1024 * 1024 * 1024;  // 1GB

 };
 
 /** @override */
@@ -383,17 +383,11 @@ TestControllerEnvironment.prototype.isGoogleDriveMounted =
   return this.isDriveMounted;
 };
 
-/** @override */
-TestControllerEnvironment.prototype.addVolumeUnmountListener =
-    function(listener) {
-  this.volumeUnmountListener_ = listener;
-};
-
 /**
- * Simulates an unmount event.
+ * @param {number}
  */
-TestControllerEnvironment.prototype.simulateUnmount = function() {
-  this.volumeUnmountListener_(this.volumeInfo_.volumeId);
+TestControllerEnvironment.prototype.setAvailableSpace = function(number) {
+  this.availableSpace_ = number;
 };
 
 /**
@@ -404,6 +398,11 @@ TestControllerEnvironment.prototype.whenCurrentDirectoryIsSet = function() {
   return this.directoryWasSetPromise_;
 };
 
+TestControllerEnvironment.prototype.getLocalVolumeAvailableSize = function() {
+  return {then: function(callback) {
+      callback(this.availableSpace_); }.bind(this)};
+};
+
 /**
  * @param {!VolumeManagerCommon.VolumeType} volumeType
  * @param {string} volumeId