Add unit tests for SearchableSelectMultipleWidget

Removes behavior-based unit testing for this widget, instead adds in
unit tests that will test each function. This makes sure that every
function does what is expected.

Change-Id: Ie97831480865defe5ab38c9499016c7fa3c12a62
Signed-off-by: Brandon Lo <lobrandon1217@gmail.com>

1 files changed, 126 insertions, 5 deletions

diff --git a/tests/tests/test.js b/tests/tests/test.js
index 3c76789..93830eb 100644
--- a/tests/tests/test.js
+++ b/tests/tests/test.js
@@ -328,12 +328,24 @@ suite('Dashboard', function() {
         let input;
         let dropdown;
         let scrollRestrictor;
+        let userField;
+        let addedNumber;
+        let selector;
+        let addedList;
 
         setup(function() {
             body.innerHTML = '';
             input = document.createElement('input');
             dropdown = document.createElement('div');
             scrollRestrictor = document.createElement('div');
+            addedList = document.createElement('div');
+            addedList.id = 'added_list';
+            selector = document.createElement('div');
+            selector.id = 'selector';
+            addedNumber = document.createElement('div');
+            addedNumber.id = 'added_number';
+            userField = document.createElement('div');
+            userField.id = 'user_field';
             scrollRestrictor.id = 'scroll_restrictor';
             dropdown.id = 'drop_results';
             input.type = 'text';
@@ -342,22 +354,131 @@ suite('Dashboard', function() {
             body.appendChild(scrollRestrictor);
             body.appendChild(dropdown);
             body.appendChild(input);
+            body.appendChild(userField);
+            body.appendChild(addedNumber);
+            body.appendChild(selector);
+            body.appendChild(addedList);
 
             widget = new SearchableSelectMultipleWidget(formatVars, fieldDataset, []);
         });
 
-        test('trie population', function() {
-            assert.property(widget.expanded_name_trie, 'T');
-            assert.property(widget.small_name_trie, 's');
-            assert.property(widget.string_trie, 'e');
+        test('disable', function() {
+            widget.disable();
+            assert.equal(userField.disabled, 'True');
+            assert.equal(dropdown.style.display, 'none');
         });
 
-        test('dropdown population with search', function() {
+        test('search_field_init', function() {
+            assert.isEmpty(addedNumber.innerText);
+            assert.isUndefined(selector.value);
+            assert.isEmpty(addedList.childNodes);
+            widget.initial = [1];
+            widget.search_field_init();
+            assert.equal(addedNumber.innerText, '1');
+            assert.equal(selector.value, '[1]');
+            assert.equal(addedList.childNodes.length, 1);
+        });
+
+        test('build_all_tries', function() {
+            let dict = {
+                '1': {
+                    expanded_name: 'exnamea',
+                    small_name: 'smnamea',
+                    string: 'stra',
+                    id: 1
+                },
+                '2': {
+                    expanded_name: 'exnameb',
+                    small_name: 'smnameb',
+                    string: 'strb',
+                    id: 2
+                }
+            };
+            widget.build_all_tries(dict);
+            // since each subtree has keys of 1 character each, look for a nested
+            // property using '.' after each letter for nesting
+            assert.nestedProperty(widget.expanded_name_trie, 'e.x.n.a.m.e.a');
+            assert.nestedProperty(widget.small_name_trie, 's.m.n.a.m.e.a');
+            assert.nestedProperty(widget.string_trie, 's.t.r.a');
+            assert.nestedProperty(widget.expanded_name_trie, 'e.x.n.a.m.e.b');
+            assert.nestedProperty(widget.small_name_trie, 's.m.n.a.m.e.b');
+            assert.nestedProperty(widget.string_trie, 's.t.r.b');
+        });
+
+        test('add_item', function() {
+            let item = {
+                id: 1,
+                expanded_name: 'item',
+                small_name: 'item',
+                string: 'item'
+            };
+            widget.add_item(item);
+            assert.nestedProperty(widget.expanded_name_trie, 'i.t.e.m');
+            assert.nestedProperty(widget.small_name_trie, 'i.t.e.m');
+            assert.nestedProperty(widget.string_trie, 'i.t.e.m');
+        });
+
+        test('add_to_tree', function() {
+            widget.add_to_tree('addtotree', 0, widget.string_trie);
+            assert.nestedProperty(widget.string_trie, 'a.d.d.t.o.t.r.e.e');
+        });
+
+        test('search', function() {
             widget.search('Test ');
             assert.equal(dropdown.childNodes[0].title, 'Test User (small Test, email@test.com)');
             // Search some random text that shouldn't resolve to any user
             widget.search('Empty');
             assert.equal(dropdown.childElementCount, 0);
         });
+
+        test('getSubtree', function() {
+            // 'email@test.com': search for 'email', next letter should be '@'
+            assert.property(widget.getSubtree('email', widget.string_trie), '@');
+        });
+
+        test('serialize', function() {
+            // object in string_trie has id 1, check if the array contains 1
+            assert.include(widget.serialize(widget.string_trie), 1);
+        });
+
+        test('collate', function() {
+            let trees = [widget.string_trie, widget.small_name_trie, widget.expanded_name_trie];
+            let result = widget.collate(trees);
+            assert.lengthOf(result, 2);
+        });
+
+        test('generate_element_text', function() {
+            let obj = {
+                expanded_name: '1',
+                small_name: '2',
+                string: '3'
+            }
+            assert.equal(widget.generate_element_text(obj), '1 (2, 3)');
+        });
+
+        test('dropdown', function() {
+            // use undefined since dropdown doesn't use values, only keys
+            widget.dropdown({'1': undefined});
+            assert.lengthOf(dropdown.childNodes, 1);
+        });
+
+        test('select_item', function() {
+            widget.select_item('1');
+            assert.lengthOf(addedList.childNodes, 1);
+        });
+
+        test('remove_item', function() {
+            widget.select_item('1');
+            assert.isNotEmpty(addedList.childNodes);
+            widget.remove_item('1');
+            assert.isEmpty(addedList.childNodes);
+        });
+
+        test('update_selected_list', function() {
+            widget.added_items.add('1');
+            assert.lengthOf(addedList.childNodes, 0);
+            widget.update_selected_list();
+            assert.lengthOf(addedList.childNodes, 1);
+        });
     });
 });