lang: Unnested the core package from the functions dir

The core package could contain non-functions, so we might as well move
it upwards.

lang/core/sys/cpucount_fact_test.go

@@ -0,0 +1,105 @@
+// Mgmt
+// Copyright (C) 2013-2024+ James Shubin and the project contributors
+// Written by James Shubin <james@shubin.ca> and the project contributors
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+//go:build !darwin
+
+package coresys
+
+import (
+	"context"
+	"testing"
+
+	"github.com/purpleidea/mgmt/lang/funcs/facts"
+	"github.com/purpleidea/mgmt/lang/types"
+)
+
+func TestSimple(t *testing.T) {
+	fact := &CPUCountFact{}
+
+	output := make(chan types.Value)
+	err := fact.Init(&facts.Init{
+		Output: output,
+		Logf: func(format string, v ...interface{}) {
+			t.Logf("cpucount_fact_test: "+format, v...)
+		},
+	})
+	if err != nil {
+		t.Errorf("could not init CPUCountFact")
+		return
+	}
+
+	ctx, cancel := context.WithCancel(context.Background())
+	go func() {
+		defer cancel()
+	Loop:
+		for {
+			select {
+			case cpus := <-output:
+				t.Logf("CPUS: %d\n", cpus.Int())
+				break Loop
+			}
+		}
+	}()
+
+	// now start the stream
+	if err := fact.Stream(ctx); err != nil {
+		t.Error(err)
+	}
+}
+
+func TestParseCPUList(t *testing.T) {
+	var cpulistTests = []struct {
+		desc   string
+		list   string
+		result int64
+	}{
+		{
+			desc:   "single CPU",
+			list:   "1",
+			result: 1,
+		},
+		{
+			desc:   "cpu range",
+			list:   "0-31",
+			result: 32,
+		},
+		{
+			desc:   "range and single",
+			list:   "0-1,3",
+			result: 3,
+		},
+		{
+			desc:   "single, two ranges",
+			list:   "2,4-8,10-16",
+			result: 13,
+		},
+	}
+
+	for _, tt := range cpulistTests {
+		t.Run(tt.list, func(t *testing.T) {
+			cpuCount, err := parseCPUList(tt.list)
+			if err != nil {
+				t.Errorf("could not parseCPUList: %+v", err)
+				return
+			}
+			if cpuCount != tt.result {
+				t.Errorf("expected %d, got %d", tt.result, cpuCount)
+				return
+			}
+		})
+	}
+}