diff --git a/tests/phpunit/tests/rest-api/rest-block-renderer-controller.php b/tests/phpunit/tests/rest-api/rest-block-renderer-controller.php
index 512043fb4ec04..e1c4983be32c8 100644
--- a/tests/phpunit/tests/rest-api/rest-block-renderer-controller.php
+++ b/tests/phpunit/tests/rest-api/rest-block-renderer-controller.php
@@ -380,6 +380,7 @@ public function test_get_item_default_attributes() {
 		$data = $response->get_data();
 
 		$this->assertSame( $defaults, json_decode( $data['rendered'], true ) );
+		// Keep assertEquals() because the objects are intentionally compared by value.
 		$this->assertEquals(
 			json_decode( $block_type->render( $defaults ) ),
 			json_decode( $data['rendered'] )
diff --git a/tests/phpunit/tests/rest-api/rest-users-controller.php b/tests/phpunit/tests/rest-api/rest-users-controller.php
index 412da7d560a75..aa68de786740d 100644
--- a/tests/phpunit/tests/rest-api/rest-users-controller.php
+++ b/tests/phpunit/tests/rest-api/rest-users-controller.php
@@ -1175,6 +1175,7 @@ public function test_get_user_empty_capabilities() {
 		} else {
 			$data = $response->get_data();
 
+			// Keep assertEquals() because the objects are intentionally compared by value.
 			$this->assertEquals( $data['capabilities'], new stdClass() );
 			$this->assertEquals( $data['extra_capabilities'], new stdClass() );
 		}
@@ -3355,6 +3356,7 @@ protected function check_user_data( $user, $data, $context, $links ) {
 			$this->assertSame( $user->last_name, $data['last_name'] );
 			$this->assertSame( $user->nickname, $data['nickname'] );
 			$this->assertSame( $user->user_email, $data['email'] );
+			// Keep assertEquals() because the objects are intentionally compared by value.
 			$this->assertEquals( (object) $user->allcaps, $data['capabilities'] );
 			$this->assertEquals( (object) $user->caps, $data['extra_capabilities'] );
 			$this->assertSame( gmdate( 'c', strtotime( $user->user_registered ) ), $data['registered_date'] );
diff --git a/tests/phpunit/tests/rest-api/wpRestAbilitiesV1ListController.php b/tests/phpunit/tests/rest-api/wpRestAbilitiesV1ListController.php
index 3f31831a825a5..0315b67dd9997 100644
--- a/tests/phpunit/tests/rest-api/wpRestAbilitiesV1ListController.php
+++ b/tests/phpunit/tests/rest-api/wpRestAbilitiesV1ListController.php
@@ -435,7 +435,7 @@ public function test_get_item_public_meta_exposes_in_rest(): void {
 		$request  = new WP_REST_Request( 'GET', '/wp-abilities/v1/abilities/test/public-ability' );
 		$response = $this->server->dispatch( $request );
 
-		$this->assertEquals( 200, $response->get_status() );
+		$this->assertSame( 200, $response->get_status() );
 
 		$data = $response->get_data();
 		$this->assertTrue( $data['meta']['public'] );
@@ -466,7 +466,7 @@ public function test_get_item_public_true_show_in_rest_false_is_hidden(): void {
 		$request  = new WP_REST_Request( 'GET', '/wp-abilities/v1/abilities/test/public-optout' );
 		$response = $this->server->dispatch( $request );
 
-		$this->assertEquals( 404, $response->get_status() );
+		$this->assertSame( 404, $response->get_status() );
 
 		$data = $response->get_data();
 		$this->assertSame( 'rest_ability_not_found', $data['code'] );
diff --git a/tests/phpunit/tests/rest-api/wpRestAbilitiesV1RunController.php b/tests/phpunit/tests/rest-api/wpRestAbilitiesV1RunController.php
index e546ce05fd29e..5edcb00690a99 100644
--- a/tests/phpunit/tests/rest-api/wpRestAbilitiesV1RunController.php
+++ b/tests/phpunit/tests/rest-api/wpRestAbilitiesV1RunController.php
@@ -429,7 +429,7 @@ public function test_execute_regular_ability_post(): void {
 		$response = $this->server->dispatch( $request );
 
 		$this->assertSame( 200, $response->get_status() );
-		$this->assertEquals( 8, $response->get_data() );
+		$this->assertSame( 8.0, $response->get_data() );
 	}
 
 	/**
@@ -451,7 +451,7 @@ public function test_execute_readonly_ability_get(): void {
 
 		$this->assertSame( 200, $response->get_status() );
 		$data = $response->get_data();
-		$this->assertEquals( self::$user_id, $data['id'] );
+		$this->assertSame( self::$user_id, $data['id'] );
 	}
 
 	/**
@@ -675,7 +675,7 @@ public function test_run_public_meta_ability_is_executable(): void {
 
 		$response = $this->server->dispatch( $request );
 
-		$this->assertEquals( 200, $response->get_status() );
+		$this->assertSame( 200, $response->get_status() );
 		$this->assertTrue( $response->get_data() );
 	}
 
@@ -789,7 +789,7 @@ public function test_get_request_with_nested_input_array(): void {
 
 		$data = $response->get_data();
 		$this->assertSame( 'nested', $data['level1']['level2']['value'] );
-		$this->assertEquals( array( 1, 2, 3 ), $data['array'] );
+		$this->assertSame( array( 1, 2, 3 ), $data['array'] );
 	}
 
 	/**
@@ -1297,7 +1297,7 @@ public function test_php_type_strings_in_input(): void {
 
 		$this->assertSame( 200, $response->get_status() );
 		$data = $response->get_data();
-		$this->assertEquals( $inputs, $data['echo'] );
+		$this->assertSame( $inputs, $data['echo'] );
 	}
 
 	/**
@@ -1346,9 +1346,9 @@ public function test_mixed_encoding_in_input(): void {
 		$data = $response->get_data();
 
 		// Input should be preserved exactly
-		$this->assertEquals( $input['utf8'], $data['echo']['utf8'] );
-		$this->assertEquals( $input['emoji'], $data['echo']['emoji'] );
-		$this->assertEquals( $input['html'], $data['echo']['html'] );
+		$this->assertSame( $input['utf8'], $data['echo']['utf8'] );
+		$this->assertSame( $input['emoji'], $data['echo']['emoji'] );
+		$this->assertSame( $input['html'], $data['echo']['html'] );
 	}
 
 	/**
diff --git a/tests/phpunit/tests/rest-api/wpRestTemplatesController.php b/tests/phpunit/tests/rest-api/wpRestTemplatesController.php
index 1f52c315e3a7c..f881ca1dede87 100644
--- a/tests/phpunit/tests/rest-api/wpRestTemplatesController.php
+++ b/tests/phpunit/tests/rest-api/wpRestTemplatesController.php
@@ -1181,6 +1181,7 @@ public function test_get_template_fallback_not_found() {
 		$request->set_param( 'slug', 'not-found' );
 		$response = rest_get_server()->dispatch( $request );
 		$data     = $response->get_data();
+		// Keep assertEquals() because the objects are intentionally compared by value.
 		$this->assertEquals( new stdClass(), $data, 'Response should be an empty object when a fallback template is not found.' );
 	}