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da34f27546
This deprecates the current minDiskFreePct setting and introduces
minDiskFree. The latter is, in it's serialized form, a string with a
unit. We accept percentages ("2.35%") and absolute values ("250 k", "12.5
Gi"). Common suffixes are understood. The config editor lets the user
enter the string, and validates it.
We still default to "1 %", but the user can change that to an absolute
value at will.
GitHub-Pull-Request: https://github.com/syncthing/syncthing/pull/4087
LGTM: AudriusButkevicius, imsodin
73 lines
2.1 KiB
Go
73 lines
2.1 KiB
Go
// Copyright (C) 2017 The Syncthing Authors.
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//
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// This Source Code Form is subject to the terms of the Mozilla Public
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// License, v. 2.0. If a copy of the MPL was not distributed with this file,
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// You can obtain one at https://mozilla.org/MPL/2.0/.
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package config
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import "testing"
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func TestParseSize(t *testing.T) {
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cases := []struct {
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in string
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ok bool
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val float64
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pct bool
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}{
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// We accept upper case SI units
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{"5K", true, 5e3, false}, // even when they should be lower case
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{"4 M", true, 4e6, false},
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{"3G", true, 3e9, false},
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{"2 T", true, 2e12, false},
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// We accept lower case SI units out of user friendliness
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{"1 k", true, 1e3, false},
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{"2m", true, 2e6, false},
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{"3 g", true, 3e9, false},
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{"4t", true, 4e12, false},
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// Fractions are OK
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{"123.456 k", true, 123.456e3, false},
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{"0.1234 m", true, 0.1234e6, false},
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{"3.45 g", true, 3.45e9, false},
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// We don't parse negative numbers
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{"-1", false, 0, false},
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{"-1k", false, 0, false},
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{"-0.45g", false, 0, false},
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// We accept various unit suffixes on the unit prefix
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{"100 KBytes", true, 100e3, false},
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{"100 Kbps", true, 100e3, false},
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{"100 MAU", true, 100e6, false},
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// Percentages are OK
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{"1%", true, 1, true},
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{"200%", true, 200, true}, // even large ones
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{"200K%", true, 200e3, true}, // even with prefixes, although this makes no sense
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{"2.34%", true, 2.34, true}, // fractions are A-ok
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// The empty string is a valid zero
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{"", true, 0, false},
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{" ", true, 0, false},
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}
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for _, tc := range cases {
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size, err := ParseSize(tc.in)
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if !tc.ok {
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if err == nil {
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t.Errorf("Unexpected nil error in UnmarshalText(%q)", tc.in)
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}
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continue
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}
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if err != nil {
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t.Errorf("Unexpected error in UnmarshalText(%q): %v", tc.in, err)
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continue
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}
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if size.BaseValue() > tc.val*1.001 || size.BaseValue() < tc.val*0.999 {
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// Allow 0.1% slop due to floating point multiplication
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t.Errorf("Incorrect value in UnmarshalText(%q): %v, wanted %v", tc.in, size.BaseValue(), tc.val)
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}
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if size.Percentage() != tc.pct {
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t.Errorf("Incorrect percentage bool in UnmarshalText(%q): %v, wanted %v", tc.in, size.Percentage(), tc.pct)
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}
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}
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}
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