(t *testing.T)
| 164 | } |
| 165 | |
| 166 | func TestRWFileHandleReadAt(t *testing.T) { |
| 167 | _, _, fh := rwHandleCreateReadOnly(t) |
| 168 | |
| 169 | // read from start |
| 170 | buf := make([]byte, 1) |
| 171 | n, err := fh.ReadAt(buf, 0) |
| 172 | require.NoError(t, err) |
| 173 | assert.Equal(t, 1, n) |
| 174 | assert.Equal(t, "0", string(buf[:n])) |
| 175 | |
| 176 | // seek forwards |
| 177 | n, err = fh.ReadAt(buf, 5) |
| 178 | require.NoError(t, err) |
| 179 | assert.Equal(t, 1, n) |
| 180 | assert.Equal(t, "5", string(buf[:n])) |
| 181 | |
| 182 | // seek backwards |
| 183 | n, err = fh.ReadAt(buf, 1) |
| 184 | require.NoError(t, err) |
| 185 | assert.Equal(t, 1, n) |
| 186 | assert.Equal(t, "1", string(buf[:n])) |
| 187 | |
| 188 | // read exactly to the end |
| 189 | buf = make([]byte, 6) |
| 190 | n, err = fh.ReadAt(buf, 10) |
| 191 | require.NoError(t, err) |
| 192 | assert.Equal(t, 6, n) |
| 193 | assert.Equal(t, "abcdef", string(buf[:n])) |
| 194 | |
| 195 | // read off the end |
| 196 | buf = make([]byte, 256) |
| 197 | n, err = fh.ReadAt(buf, 10) |
| 198 | assert.Equal(t, io.EOF, err) |
| 199 | assert.Equal(t, 6, n) |
| 200 | assert.Equal(t, "abcdef", string(buf[:n])) |
| 201 | |
| 202 | // read starting off the end |
| 203 | n, err = fh.ReadAt(buf, 100) |
| 204 | assert.Equal(t, io.EOF, err) |
| 205 | assert.Equal(t, 0, n) |
| 206 | |
| 207 | // Properly close the file |
| 208 | assert.NoError(t, fh.Close()) |
| 209 | |
| 210 | // check reading on closed file |
| 211 | _, err = fh.ReadAt(buf, 100) |
| 212 | assert.Equal(t, ECLOSED, err) |
| 213 | } |
| 214 | |
| 215 | func TestRWFileHandleFlushRead(t *testing.T) { |
| 216 | _, _, fh := rwHandleCreateReadOnly(t) |
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