From 3229ec8a7930f74be558052bddeffb9959d715d8 Mon Sep 17 00:00:00 2001
From: Serhiy Mytrovtsiy <mitrovtsiy@ukr.net>
Date: Sat, 29 Oct 2022 11:12:41 +0200
Subject: [PATCH] fix: adjusted RAM top process parser (when the process has 0
 PID and 0 in the usage)

---
 Modules/RAM/readers.swift |  8 ++++++--
 Tests/RAM.swift           | 11 +++++++----
 2 files changed, 13 insertions(+), 6 deletions(-)

diff --git a/Modules/RAM/readers.swift b/Modules/RAM/readers.swift
index b5b0e6a0..4bf33ba8 100644
--- a/Modules/RAM/readers.swift
+++ b/Modules/RAM/readers.swift
@@ -154,10 +154,14 @@ public class ProcessReader: Reader<[TopProcess]> {
     }
     
     static public func parseProcess(_ raw: String) -> TopProcess {
-        let str = raw.trimmingCharacters(in: .whitespaces)
+        var str = raw.trimmingCharacters(in: .whitespaces)
         let pidString = str.find(pattern: "^\\d+")
         
-        var arr = str.replacingOccurrences(of: pidString, with: "").split(separator: " ")
+        if let range = str.range(of: pidString) {
+            str = str.replacingCharacters(in: range, with: "")
+        }
+        
+        var arr = str.split(separator: " ")
         if arr.first == "*" {
             arr.removeFirst()
         }
diff --git a/Tests/RAM.swift b/Tests/RAM.swift
index e7fb7f4b..43693a40 100644
--- a/Tests/RAM.swift
+++ b/Tests/RAM.swift
@@ -55,12 +55,15 @@ class RAM: XCTestCase {
         XCTAssertEqual(process.usage, 11 * Double(1024 * 1024 * 1024))
     }
     
-    func testReplacePID() throws {
-        let raw = "0      kernel_task      270M "
-        let process = ProcessReader.parseProcess(raw)
-        
+    func testKernelTask() throws {
+        var process = ProcessReader.parseProcess("0      kernel_task      270M ")
         XCTAssertEqual(process.pid, 0)
         XCTAssertEqual(process.command, "kernel_task")
         XCTAssertEqual(process.usage, 270 * Double(1024 * 1024))
+        
+        process = ProcessReader.parseProcess("0     kernel_task      280M")
+        XCTAssertEqual(process.pid, 0)
+        XCTAssertEqual(process.command, "kernel_task")
+        XCTAssertEqual(process.usage, 280 * Double(1024 * 1024))
     }
 }