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e69a5da702
* issue/ISSUE-248-refinements_for_decompressor_api * Fix match tedst expectations * Remove unneeded comment
98 lines
2.2 KiB
Go
98 lines
2.2 KiB
Go
/*
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Copyright 2021 Erigon contributors
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package compress
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import (
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"context"
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"fmt"
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"path"
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"path/filepath"
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"testing"
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)
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func TestCompressEmptyDict(t *testing.T) {
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tmpDir := t.TempDir()
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file := filepath.Join(tmpDir, "compressed")
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c, err := NewCompressor(context.Background(), t.Name(), file, tmpDir, 100, 1)
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if err != nil {
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t.Fatal(err)
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}
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defer c.Close()
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if err = c.AddWord([]byte("word")); err != nil {
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t.Fatal(err)
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}
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if err = c.Compress(); err != nil {
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t.Fatal(err)
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}
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var d *Decompressor
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if d, err = NewDecompressor(file); err != nil {
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t.Fatal(err)
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}
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defer d.Close()
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g := d.MakeGetter()
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if !g.HasNext() {
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t.Fatalf("expected a word")
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}
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word, _ := g.Next(nil)
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if string(word) != "word" {
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t.Fatalf("expeced word, got (hex) %x", word)
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}
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if g.HasNext() {
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t.Fatalf("not expecting anything else")
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}
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}
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func prepareDict(t *testing.T) *Decompressor {
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tmpDir := t.TempDir()
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file := path.Join(tmpDir, "compressed")
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t.Name()
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c, err := NewCompressor(context.Background(), t.Name(), file, tmpDir, 1, 2)
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if err != nil {
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t.Fatal(err)
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}
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defer c.Close()
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for i := 0; i < 100; i++ {
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if err = c.AddWord([]byte(fmt.Sprintf("longlongword %d", i))); err != nil {
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t.Fatal(err)
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}
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}
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if err = c.Compress(); err != nil {
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t.Fatal(err)
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}
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var d *Decompressor
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if d, err = NewDecompressor(file); err != nil {
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t.Fatal(err)
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}
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return d
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}
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func TestCompressDict1(t *testing.T) {
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d := prepareDict(t)
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defer d.Close()
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g := d.MakeGetter()
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i := 0
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for g.HasNext() {
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word, _ := g.Next(nil)
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expected := fmt.Sprintf("longlongword %d", i)
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if string(word) != expected {
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t.Errorf("expected %s, got (hex) %s", expected, word)
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}
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i++
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}
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}
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