diff --git a/__tests__/branch.test.ts b/__tests__/branch.test.ts
index d9c904cf..4bd20305 100644
--- a/__tests__/branch.test.ts
+++ b/__tests__/branch.test.ts
@@ -1,6 +1,7 @@
 import {
   getBranchName,
   checkAnyBranch,
+  checkAllBranch,
   toBranchMatchConfig,
   BranchMatchConfig
 } from '../src/branch';
@@ -25,6 +26,65 @@ describe('getBranchName', () => {
   });
 });
 
+describe('checkAllBranch', () => {
+  beforeEach(() => {
+    github.context.payload.pull_request!.head = {
+      ref: 'test/feature/123'
+    };
+    github.context.payload.pull_request!.base = {
+      ref: 'main'
+    };
+  });
+
+  describe('when a single pattern is provided', () => {
+    describe('and the pattern matches the head branch', () => {
+      it('returns true', () => {
+        const result = checkAllBranch(['^test'], 'head');
+        expect(result).toBe(true);
+      });
+    });
+
+    describe('and the pattern does not match the head branch', () => {
+      it('returns false', () => {
+        const result = checkAllBranch(['^feature/'], 'head');
+        expect(result).toBe(false);
+      });
+    });
+  });
+
+  describe('when multiple patterns are provided', () => {
+    describe('and not all patterns matched', () => {
+      it('returns false', () => {
+        const result = checkAllBranch(['^test/', '^feature/'], 'head');
+        expect(result).toBe(false);
+      });
+    });
+
+    describe('and all patterns match', () => {
+      it('returns true', () => {
+        const result = checkAllBranch(['^test/', '/feature/'], 'head');
+        expect(result).toBe(true);
+      });
+    });
+
+    describe('and no patterns match', () => {
+      it('returns false', () => {
+        const result = checkAllBranch(['^feature/', '/test$'], 'head');
+        expect(result).toBe(false);
+      });
+    });
+  });
+
+  describe('when the branch to check is specified as the base branch', () => {
+    describe('and the pattern matches the base branch', () => {
+      it('returns true', () => {
+        const result = checkAllBranch(['^main$'], 'base');
+        expect(result).toBe(true);
+      });
+    });
+  });
+});
+
 describe('checkAnyBranch', () => {
   beforeEach(() => {
     github.context.payload.pull_request!.head = {
diff --git a/__tests__/labeler.test.ts b/__tests__/labeler.test.ts
index d5ac569b..0b9fb307 100644
--- a/__tests__/labeler.test.ts
+++ b/__tests__/labeler.test.ts
@@ -88,19 +88,53 @@ describe('toMatchConfig', () => {
 });
 
 describe('checkMatchConfigs', () => {
-  const matchConfig: MatchConfig[] = [{any: [{changedFiles: ['*.txt']}]}];
+  describe('when a single match config is provided', () => {
+    const matchConfig: MatchConfig[] = [{any: [{changedFiles: ['*.txt']}]}];
 
-  it('returns true when our pattern does match changed files', () => {
-    const changedFiles = ['foo.txt', 'bar.txt'];
-    const result = checkMatchConfigs(changedFiles, matchConfig);
+    it('returns true when our pattern does match changed files', () => {
+      const changedFiles = ['foo.txt', 'bar.txt'];
+      const result = checkMatchConfigs(changedFiles, matchConfig);
 
-    expect(result).toBeTruthy();
+      expect(result).toBeTruthy();
+    });
+
+    it('returns false when our pattern does not match changed files', () => {
+      const changedFiles = ['foo.docx'];
+      const result = checkMatchConfigs(changedFiles, matchConfig);
+
+      expect(result).toBeFalsy();
+    });
+
+    it('returns true when either the branch or changed files patter matches', () => {
+      const matchConfig: MatchConfig[] = [
+        {any: [{changedFiles: ['*.txt']}, {headBranch: ['some-branch']}]}
+      ];
+      const changedFiles = ['foo.txt', 'bar.txt'];
+
+      const result = checkMatchConfigs(changedFiles, matchConfig);
+      expect(result).toBe(true);
+    });
   });
 
-  it('returns false when our pattern does not match changed files', () => {
-    const changedFiles = ['foo.docx'];
-    const result = checkMatchConfigs(changedFiles, matchConfig);
+  describe('when multiple MatchConfigs are supplied', () => {
+    const matchConfig: MatchConfig[] = [
+      {any: [{changedFiles: ['*.txt']}]},
+      {any: [{headBranch: ['some-branch']}]}
+    ];
+    const changedFiles = ['foo.txt', 'bar.md'];
 
-    expect(result).toBeFalsy();
+    it('returns false when only one config matches', () => {
+      const result = checkMatchConfigs(changedFiles, matchConfig);
+      expect(result).toBe(false);
+    });
+
+    it('returns true when only both config matches', () => {
+      const matchConfig: MatchConfig[] = [
+        {any: [{changedFiles: ['*.txt']}]},
+        {any: [{headBranch: ['head-branch']}]}
+      ];
+      const result = checkMatchConfigs(changedFiles, matchConfig);
+      expect(result).toBe(true);
+    });
   });
 });