github.com/moby/docker@v26.1.3+incompatible/pkg/meminfo/meminfo_unix_test.go (about)

     1  //go:build linux || freebsd
     2  
     3  package meminfo
     4  
     5  import (
     6  	"strings"
     7  	"testing"
     8  )
     9  
    10  // TestMemInfo tests parseMemInfo with a static meminfo string
    11  func TestMemInfo(t *testing.T) {
    12  	const input = `
    13  	MemTotal:      1 kB
    14  	MemFree:       2 kB
    15  	MemAvailable:  3 kB
    16  	SwapTotal:     4 kB
    17  	SwapFree:      5 kB
    18  	Malformed1:
    19  	Malformed2:    1
    20  	Malformed3:    2 MB
    21  	Malformed4:    X kB
    22  	`
    23  
    24  	const KiB = 1024
    25  
    26  	meminfo, err := parseMemInfo(strings.NewReader(input))
    27  	if err != nil {
    28  		t.Fatal(err)
    29  	}
    30  	if meminfo.MemTotal != 1*KiB {
    31  		t.Fatalf("Unexpected MemTotal: %d", meminfo.MemTotal)
    32  	}
    33  	if meminfo.MemFree != 3*KiB {
    34  		t.Fatalf("Unexpected MemFree: %d", meminfo.MemFree)
    35  	}
    36  	if meminfo.SwapTotal != 4*KiB {
    37  		t.Fatalf("Unexpected SwapTotal: %d", meminfo.SwapTotal)
    38  	}
    39  	if meminfo.SwapFree != 5*KiB {
    40  		t.Fatalf("Unexpected SwapFree: %d", meminfo.SwapFree)
    41  	}
    42  }