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Move duration and size to units pkg

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Docker-DCO-1.1-Signed-off-by: Michael Crosby <michael@crosbymichael.com> (github: crosbymichael)
This commit is contained in:
Michael Crosby 2014-05-12 16:40:19 -07:00
parent fa0e7c2ec2
commit 68928c3485
4 changed files with 143 additions and 0 deletions
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54
units/size_test.go Normal file
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@ -0,0 +1,54 @@
package units
import (
"strings"
"testing"
)
func TestHumanSize(t *testing.T) {
size := strings.Trim(HumanSize(1000), " \t")
expect := "1 kB"
if size != expect {
t.Errorf("1000 -> expected '%s', got '%s'", expect, size)
}
size = strings.Trim(HumanSize(1024), " \t")
expect = "1.024 kB"
if size != expect {
t.Errorf("1024 -> expected '%s', got '%s'", expect, size)
}
}
func TestRAMInBytes(t *testing.T) {
assertRAMInBytes(t, "32", false, 32)
assertRAMInBytes(t, "32b", false, 32)
assertRAMInBytes(t, "32B", false, 32)
assertRAMInBytes(t, "32k", false, 32*1024)
assertRAMInBytes(t, "32K", false, 32*1024)
assertRAMInBytes(t, "32kb", false, 32*1024)
assertRAMInBytes(t, "32Kb", false, 32*1024)
assertRAMInBytes(t, "32Mb", false, 32*1024*1024)
assertRAMInBytes(t, "32Gb", false, 32*1024*1024*1024)
assertRAMInBytes(t, "", true, -1)
assertRAMInBytes(t, "hello", true, -1)
assertRAMInBytes(t, "-32", true, -1)
assertRAMInBytes(t, " 32 ", true, -1)
assertRAMInBytes(t, "32 mb", true, -1)
assertRAMInBytes(t, "32m b", true, -1)
assertRAMInBytes(t, "32bm", true, -1)
}
func assertRAMInBytes(t *testing.T, size string, expectError bool, expectedBytes int64) {
actualBytes, err := RAMInBytes(size)
if (err != nil) && !expectError {
t.Errorf("Unexpected error parsing '%s': %s", size, err)
}
if (err == nil) && expectError {
t.Errorf("Expected to get an error parsing '%s', but got none (bytes=%d)", size, actualBytes)
}
if actualBytes != expectedBytes {
t.Errorf("Expected '%s' to parse as %d bytes, got %d", size, expectedBytes, actualBytes)
}
}