test(Condition): test a single condition

Author: Leksat

tests/src/Kernel/ResolverBuilderTest.php

@@ -231,6 +231,26 @@ public function testFromContext(): void {
     $this->assertResults($query, [], ['tree' => ['context' => ['myContext' => 'my context value']]]);
   }
 
+  /**
+   * @covers ::cond
+   */
+  public function testSingleCond(): void {
+    $this->mockResolver('Query', 'me', $this->builder->cond([
+      [
+        $this->builder->fromValue(FALSE),
+        $this->builder->fromValue('This should resolve into null.'),
+      ],
+    ]));
+
+    $query = <<<GQL
+      query {
+        me
+      }
+GQL;
+
+    $this->assertResults($query, [], ['me' => NULL]);
+  }
+
   /**
    * @covers ::cond
    */