refactor: update test coverage (#202)

* clean up and test segment integration

* add tests for action utils

* add tests for store aggregator and utils

* clean up un-used paths in thunkAction testUtils

* clean up filter reducer coverage

* add filter reducer tests for filterMenu actions

* clean up grades selectors coverage

* separate App and add unit tests

* ignore external files in coverage analysis

* remove old/unused code from StrictDict and clean up tests

* clean up FileUploadForm coverage

* more cleanup for StrictDict tests

* clean up GradesTab test coverage

* clean up GradesTab coverage

* ignore reducer-mapping for unit-test coverage

* clean up AssignmentFilter test coverage

* add index-level test coverage

* temp remove snapshots

* re-add App snapshot

* v1.4.41

src/components/BulkManagementTab/FileUploadForm.test.jsx

@@ -114,6 +114,14 @@ describe('FileUploadForm', () => {
         });
       });
     });
+    describe('fileInput helper', () => {
+      test('links to fileInputRef.current', () => {
+        el = mount(<FileUploadForm {...props} />);
+        const ref = 'a-fake-ref';
+        el.instance().fileInputRef = { current: ref };
+        expect(el.instance().fileInput).toEqual(ref);
+      });
+    });
     describe('behavior', () => {
       let fileInput;
       beforeEach(() => {

src/components/GradebookFilters/AssignmentFilter/test.jsx

@@ -69,7 +69,6 @@ describe('AssignmentFilter', () => {
           el = mount(<AssignmentFilter {...props} />);
           el.instance().handleChange(event);
         });
-
         it('calls props.updateAssignmentFilter with selection', () => {
           expect(props.updateAssignmentFilter).toHaveBeenCalledWith({
             label: newAssgn,
@@ -87,6 +86,30 @@ describe('AssignmentFilter', () => {
           const method = props.fetchGradesIfAssignmentGradeFiltersSet;
           expect(method).toHaveBeenCalledWith();
         });
+        describe('no selected option', () => {
+          const value = 'fake';
+          beforeEach(() => {
+            el = mount(<AssignmentFilter {...props} />);
+            el.instance().handleChange({ target: { value } });
+          });
+          it('calls props.updateAssignmentFilter with selection', () => {
+            expect(props.updateAssignmentFilter).toHaveBeenCalledWith({
+              label: value,
+              type: undefined,
+              id: undefined,
+            });
+          });
+          it('calls props.updateQueryParams with selected assignment id',
+            () => {
+              expect(props.updateQueryParams).toHaveBeenCalledWith({
+                assignment: undefined,
+              });
+            });
+          it('calls props.fetchGradesIfAssignmentGradeFiltersSet', () => {
+            const method = props.fetchGradesIfAssignmentGradeFiltersSet;
+            expect(method).toHaveBeenCalledWith();
+          });
+        });
       });
     });
     describe('snapshots', () => {

src/components/GradesTab/test.jsx

@@ -6,6 +6,7 @@ import thunkActions from 'data/thunkActions';
 
 import {
   GradesTab,
+  mapStateToProps,
   mapDispatchToProps,
 } from '.';
 
@@ -78,6 +79,9 @@ describe('GradesTab', () => {
       });
     });
   });
+  test('mapStateToProps is empty', () => {
+    expect(mapStateToProps({ some: 'state' })).toEqual({});
+  });
   describe('mapDispatchToProps', () => {
     describe('fetchGrades', () => {
       test('from thunkActions.grades.fetchGrades', () => {