74 lines
2.8 KiB
Swift
74 lines
2.8 KiB
Swift
import Foundation
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import TermindDomain
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import TermindInfrastructure
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import Testing
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@Suite
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struct MetricsProcessTests {
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@Test
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func procStatHandlesParenthesesAndUsesRemotePageSize() throws {
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let source = """
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cpu 100 0 0 900 0 0 0 0 0 0
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cpu0 50 0 0 450 0 0 0 0 0 0
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cpu1 50 0 0 450 0 0 0 0 0 0
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pagesize 4096
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__TERMIND_PROCESSES__
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\(stat(pid: 42, name: "worker (a)", user: 10, system: 5, started: 100, pages: 25))
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"""
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let result = try LinuxProcessParser.parse(source)
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#expect(result.coreCount == 2)
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let process = try #require(result.processes.first)
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#expect(process.pid == 42 && process.name == "worker (a)")
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#expect(process.memory == 102_400.0)
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#expect(process.ticks == 15 && process.started == 100)
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}
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@Test
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func processCPUIsPerCoreAndPIDReuseDoesNotInheritCounters() {
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let previous = MetricsProcessSample(
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cpu: [100, 0, 0, 900, 0, 0, 0, 0], coreCount: 2,
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processes: [
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MetricsProcessCounter(pid: 1, name: "first", ticks: 10, started: 1),
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MetricsProcessCounter(pid: 2, name: "reused", ticks: 10, started: 1),
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])
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let current = MetricsProcessSample(
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cpu: [200, 0, 0, 900, 0, 0, 0, 0], coreCount: 2,
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processes: [
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MetricsProcessCounter(pid: 2, name: "new", ticks: 200, started: 2),
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MetricsProcessCounter(pid: 1, name: "first", ticks: 85, started: 1),
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])
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let rows = MetricsProcess.rows(previous: previous, current: current)
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#expect(rows.first?.pid == 1)
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#expect(rows.first?.cpu == 150)
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#expect(rows.last?.cpu == nil)
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#expect(MetricsProcess.rows(previous: nil, current: current).allSatisfy { $0.cpu == nil })
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}
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@Test
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func exitedMalformedAndUnreadableProcessesDoNotFailTheSnapshot() throws {
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let source = """
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cpu 1 0 0 10 0 0 0 0
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cpu0 1 0 0 10 0 0 0 0
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pagesize unknown
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__TERMIND_PROCESSES__
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invalid
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2 (gone) R
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\(stat(pid: 42, name: "valid", user: 1, system: 0, started: 1, pages: 3))
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"""
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let sample = try LinuxProcessParser.parse(source)
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#expect(sample.processes.count == 1)
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#expect(sample.processes.first?.memory == nil)
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#expect(throws: MetricsReadError.self) { try LinuxProcessParser.parse("missing procfs") }
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}
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private func stat(pid: Int, name: String, user: Int, system: Int, started: Int, pages: Int) -> String {
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var fields = Array(repeating: "0", count: 22)
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fields[0] = "R"
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fields[11] = String(user)
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fields[12] = String(system)
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fields[19] = String(started)
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fields[21] = String(pages)
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return "\(pid) (\(name)) " + fields.joined(separator: " ")
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}
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}
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