IHF: backtrace_as_string tests added.

Author: dmitry-ivanov

tests/format/BacktraceAsStringTest.php

@@ -0,0 +1,22 @@
+<?php
+
+class BacktraceAsStringTest extends TestCase
+{
+    /** @test */
+    public function it_returns_backtrace_as_string_without_args()
+    {
+        $start = file_get_contents(__DIR__ . '/BacktraceAsStringTest/backtrace.txt');
+        $backtrace = $this->getBacktrace();
+        $this->assertStringStartsWith($start, $backtrace);
+    }
+
+    private function getBacktrace()
+    {
+        return $this->anotherExtraMethod();
+    }
+
+    private function anotherExtraMethod()
+    {
+        return backtrace_as_string();
+    }
+}

tests/format/BacktraceAsStringTest/backtrace.txt

@@ -0,0 +1,4 @@
+#0  backtrace_as_string() called at [/Applications/MAMP/htdocs/illuminated/helper-functions/tests/format/BacktraceAsStringTest.php:20]
+#1  BacktraceAsStringTest->anotherExtraMethod() called at [/Applications/MAMP/htdocs/illuminated/helper-functions/tests/format/BacktraceAsStringTest.php:15]
+#2  BacktraceAsStringTest->getBacktrace() called at [/Applications/MAMP/htdocs/illuminated/helper-functions/tests/format/BacktraceAsStringTest.php:9]
+#3  BacktraceAsStringTest->it_returns_backtrace_as_string_without_args()