1 files changed, 99 insertions, 13 deletions
diff --git a/spec/frontend/boards/boards_util_spec.js b/spec/frontend/boards/boards_util_spec.js
index 0feb1411003..289905a1948 100644
--- a/spec/frontend/boards/boards_util_spec.js
+++ b/spec/frontend/boards/boards_util_spec.js
@@ -1,17 +1,103 @@
-import { transformNotFilters } from '~/boards/boards_util';
+import { filterVariables } from '~/boards/boards_util';
 
-describe('transformNotFilters', () => {
-  const filters = {
-    'not[labelName]': ['label'],
-    'not[assigneeUsername]': 'assignee',
-  };
-
-  it('formats not filters, transforms epicId to fullEpicId', () => {
-    const result = transformNotFilters(filters);
-
-    expect(result).toEqual({
-      labelName: ['label'],
-      assigneeUsername: 'assignee',
+describe('filterVariables', () => {
+  it.each([
+    [
+      'correctly processes array filter values',
+      {
+        filters: {
+          'not[filterA]': ['val1', 'val2'],
+        },
+        expected: {
+          not: {
+            filterA: ['val1', 'val2'],
+          },
+        },
+      },
+    ],
+    [
+      "renames a filter if 'remap' method is available",
+      {
+        filters: {
+          filterD: 'some value',
+        },
+        expected: {
+          filterA: 'some value',
+          not: {},
+        },
+      },
+    ],
+    [
+      'correctly processes a negated filter that supports negation',
+      {
+        filters: {
+          'not[filterA]': 'some value 1',
+          'not[filterB]': 'some value 2',
+        },
+        expected: {
+          not: {
+            filterA: 'some value 1',
+          },
+        },
+      },
+    ],
+    [
+      'correctly removes an unsupported filter depending on issuableType',
+      {
+        issuableType: 'epic',
+        filters: {
+          filterA: 'some value 1',
+          filterE: 'some value 2',
+        },
+        expected: {
+          filterE: 'some value 2',
+          not: {},
+        },
+      },
+    ],
+    [
+      'applies a transform when the filter value needs to be modified',
+      {
+        filters: {
+          filterC: 'abc',
+          'not[filterC]': 'def',
+        },
+        expected: {
+          filterC: 'ABC',
+          not: {
+            filterC: 'DEF',
+          },
+        },
+      },
+    ],
+  ])('%s', (_, { filters, issuableType = 'issue', expected }) => {
+    const result = filterVariables({
+      filters,
+      issuableType,
+      filterInfo: {
+        filterA: {
+          negatedSupport: true,
+        },
+        filterB: {
+          negatedSupport: false,
+        },
+        filterC: {
+          negatedSupport: true,
+          transform: (val) => val.toUpperCase(),
+        },
+        filterD: {
+          remap: () => 'filterA',
+        },
+        filterE: {
+          negatedSupport: true,
+        },
+      },
+      filterFields: {
+        issue: ['filterA', 'filterB', 'filterC', 'filterD'],
+        epic: ['filterE'],
+      },
     });
+
+    expect(result).toEqual(expected);
   });
 });