[TEST] Better context to true/false failures

Author: polyfractal

tests/Elasticsearch/Tests/YamlRunnerTest.php

@@ -377,8 +377,11 @@ public function executeAsyncExistRequest($caller, $method, $endpointParams, $exp
      */
     public function operationIsFalse($operation, $lastOperationResult, &$context, $testName)
     {
-        $msg = "Failed to assert that a value is false in test \"$testName\"\n".var_export($lastOperationResult, true);
-        static::assertFalse((bool)$this->resolveValue($lastOperationResult, $operation, $context), $msg);
+        $value = (bool)$this->resolveValue($lastOperationResult, $operation, $context);
+        $msg = "Failed to assert that a value is false in test \"$testName\"\n"
+            ."$operation was [$value]"
+            .var_export($lastOperationResult, true);
+        static::assertFalse($value, $msg);
 
         return $lastOperationResult;
     }
@@ -394,7 +397,9 @@ public function operationIsTrue($operation, $lastOperationResult, &$context, $te
     {
         $value = $this->resolveValue($lastOperationResult, $operation, $context);
 
-        $msg = "Failed to assert that a value is true in test \"$testName\"\n".var_export($lastOperationResult, true);
+        $msg = "Failed to assert that a value is true in test \"$testName\"\n"
+            ."$operation was [$value]"
+            .var_export($lastOperationResult, true);
         static::assertNotEquals(0, $value, $msg);
         static::assertNotFalse($value, $msg);
         static::assertNotNull($value, $msg);