1 files changed, 68 insertions, 0 deletions
diff --git a/src/tools/chmod-calculator/chmod-calculator.service.test.ts b/src/tools/chmod-calculator/chmod-calculator.service.test.ts
new file mode 100644
index 0000000..fafb393
--- /dev/null
+++ b/src/tools/chmod-calculator/chmod-calculator.service.test.ts
@@ -0,0 +1,68 @@
+import { expect, describe, it } from 'vitest';
+import { computeChmodOctalRepresentation } from './chmod-calculator.service';
+
+describe('chmod-calculator', () => {
+  describe('computeChmodOctalRepresentation', () => {
+    it('get the octal representation from permissions', () => {
+      expect(
+        computeChmodOctalRepresentation({
+          permissions: {
+            owner: { read: true, write: true, execute: true },
+            group: { read: true, write: true, execute: true },
+            public: { read: true, write: true, execute: true },
+          },
+        }),
+      ).to.eql('777');
+
+      expect(
+        computeChmodOctalRepresentation({
+          permissions: {
+            owner: { read: false, write: false, execute: false },
+            group: { read: false, write: false, execute: false },
+            public: { read: false, write: false, execute: false },
+          },
+        }),
+      ).to.eql('000');
+
+      expect(
+        computeChmodOctalRepresentation({
+          permissions: {
+            owner: { read: false, write: true, execute: false },
+            group: { read: false, write: true, execute: true },
+            public: { read: true, write: false, execute: true },
+          },
+        }),
+      ).to.eql('235');
+
+      expect(
+        computeChmodOctalRepresentation({
+          permissions: {
+            owner: { read: true, write: false, execute: false },
+            group: { read: false, write: true, execute: false },
+            public: { read: false, write: false, execute: true },
+          },
+        }),
+      ).to.eql('421');
+
+      expect(
+        computeChmodOctalRepresentation({
+          permissions: {
+            owner: { read: false, write: false, execute: true },
+            group: { read: false, write: true, execute: false },
+            public: { read: true, write: false, execute: false },
+          },
+        }),
+      ).to.eql('124');
+
+      expect(
+        computeChmodOctalRepresentation({
+          permissions: {
+            owner: { read: false, write: true, execute: false },
+            group: { read: false, write: true, execute: false },
+            public: { read: false, write: true, execute: false },
+          },
+        }),
+      ).to.eql('222');
+    });
+  });
+});