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https://github.com/VictoriaMetrics/VictoriaMetrics.git
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df99965564
Callers of this function log the returned error and exit. It is better logging the error together with the path to the filename and call stack directly inside the function. This simplifies the code at callers' side without reducing the level of debuggability
52 lines
1.1 KiB
Go
52 lines
1.1 KiB
Go
package filestream
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import (
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"bytes"
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"fmt"
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"io"
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"os"
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"testing"
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)
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func TestWriteRead(t *testing.T) {
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testWriteRead(t, false, "")
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testWriteRead(t, true, "")
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testWriteRead(t, false, "foobar")
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testWriteRead(t, true, "foobar")
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testWriteRead(t, false, "a\nb\nc\n")
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testWriteRead(t, true, "a\nb\nc\n")
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var bb bytes.Buffer
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for bb.Len() < 3*dontNeedBlockSize {
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fmt.Fprintf(&bb, "line %d\n", bb.Len())
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}
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testStr := bb.String()
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testWriteRead(t, false, testStr)
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testWriteRead(t, true, testStr)
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}
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func testWriteRead(t *testing.T, nocache bool, testStr string) {
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t.Helper()
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w := MustCreate("./nocache_test.txt", nocache)
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defer func() {
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_ = os.Remove("./nocache_test.txt")
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}()
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if _, err := fmt.Fprintf(w, "%s", testStr); err != nil {
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t.Fatalf("unexpected error when writing testStr: %s", err)
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}
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w.MustClose()
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r := MustOpen("./nocache_test.txt", nocache)
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buf := make([]byte, len(testStr))
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if _, err := io.ReadFull(r, buf); err != nil {
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t.Fatalf("unexpected error when reading: %s", err)
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}
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if string(buf) != testStr {
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t.Fatalf("unexpected data read: got\n%x; want\n%x", buf, testStr)
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}
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r.MustClose()
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}
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