mirror of
https://github.com/JetSetIlly/Gopher2600.git
synced 2024-05-20 13:48:02 -04:00
63 lines
1.7 KiB
Go
63 lines
1.7 KiB
Go
// This file is part of Gopher2600.
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//
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// Gopher2600 is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// Gopher2600 is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with Gopher2600. If not, see <https://www.gnu.org/licenses/>.
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package test_test
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import (
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"testing"
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"github.com/jetsetilly/gopher2600/test"
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)
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func TestCappedWriter(t *testing.T) {
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c, err := test.NewCappedWriter(10)
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test.Equate(t, err, nil)
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// testing that the ring writer starts off with the empty string
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test.Equate(t, c.String(), "")
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// add one character
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c.Write([]byte("a"))
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test.Equate(t, c.String(), "a")
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// add another three characters
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c.Write([]byte("bcd"))
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test.Equate(t, c.String(), "abcd")
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// add another six characters, taken us to the limit of 10
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c.Write([]byte("efghij"))
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test.Equate(t, c.String(), "abcdefghij")
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// add another three, which should just be ignoed
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c.Write([]byte("klm"))
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test.Equate(t, c.String(), "abcdefghij")
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// reset and test for empty string
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c.Reset()
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test.Equate(t, c.String(), "")
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// add entire limit in one go
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c.Write([]byte("abcdefghij"))
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test.Equate(t, c.String(), "abcdefghij")
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// reset again
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c.Reset()
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test.Equate(t, c.String(), "")
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// add entire limit and more in one go
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c.Write([]byte("abcdefghijklm"))
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test.Equate(t, c.String(), "abcdefghij")
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}
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