expected string // expected SHA256
	}{
		{"shastring", "", "shastring"},
		{emptySHA256, "", emptySHA256},
		{"", "", emptySHA256},
		{"", "X-Amz-Credential=random", unsignedPayload},
		{"", "X-Amz-Credential=random&X-Amz-Content-Sha256=" + unsignedPayload, unsignedPayload},
		{"", "X-Amz-Credential=random&X-Amz-Content-Sha256=shastring", "shastring"},
	}

	for i, testCase := range testCases {

        final int result = copy(srcString, writer);
        assertThat(result, is(srcString.length()));
        assertThat(writer.toString(), is(srcString));
    }

    /**
     * @throws Exception
     */
    @Test
    public void testReaderToStringBuilder() throws Exception {
        final int result = copy(reader, builder);
        assertThat(result, is(srcString.length()));

    creator.setString(0, "AB")
    creator.setString(1, "C")
    creator.commit()
    cache.close()
    assertJournalEquals("DIRTY k1", "CLEAN k1 2 1")
  }

  @Test
  fun revertedNewFileIsRemoveInJournal() {
    val creator = cache.edit("k1")!!
    assertJournalEquals("DIRTY k1") // DIRTY must always be flushed.
    creator.setString(0, "AB")
    creator.setString(1, "C")
    creator.abort()

        return !isEmpty(text);
    }

    /**
     * Replaces all occurrences of a substring within a string with another string.
     *
     * @param text
     *            The original string.
     * @param fromText
     *            The substring to be replaced.
     * @param toText
     *            The replacement substring.
     * @return The resulting string after replacements.
     */

        if (lower.startsWith(allowPrefix)) {
            lower = lower.substring(allowPrefix.length());
            permission = permission.substring(allowPrefix.length());
            aclPrefix = StringUtil.EMPTY;
        } else if (lower.startsWith(denyPrefix)) {
            lower = lower.substring(denyPrefix.length());
            permission = permission.substring(denyPrefix.length());

            if (expandedNames.length > 0) {
                dr.server = expandedNames[0].substring(1).toLowerCase();
            } else {
                dr.server = ref.getSpecialName().substring(1).toLowerCase();
            }
            if (log.isDebugEnabled()) {
                log.debug("Server " + dr.server + " path " + reqPath + " remain " + reqPath.substring(consumed) + " path consumed "
                        + consumed);
            }

		result.combine(e.Substring.Expr.analyze(s))
		switch {
		case e.Substring.From != nil:
			result.combine(e.Substring.From.analyze(s))
			if e.Substring.For != nil {
				result.combine(e.Substring.Expr.analyze(s))
			}
		case e.Substring.Arg2 != nil:
			result.combine(e.Substring.Arg2.analyze(s))
			if e.Substring.Arg3 != nil {
				result.combine(e.Substring.Arg3.analyze(s))
			}
		default:

    private boolean determineVersionMatch(String version) {
        String test = version;
        boolean reverse = false;

        if (test.startsWith("!")) {
            reverse = true;
            test = test.substring(1);
        }

        boolean result = Os.OS_VERSION.equals(test);

        if (reverse) {
            return !result;
        } else {
            return result;
        }
    }

            } catch (final SmbException se) {
                fp = 0L;
            }
        }
        if (file instanceof SmbNamedPipe && file.unc.startsWith("\\pipe\\")) {
            file.unc = file.unc.substring(5);
            file.send(new TransWaitNamedPipe("\\pipe" + file.unc), new TransWaitNamedPipeResponse());
        }
        file.open(openFlags, access | SmbConstants.FILE_WRITE_DATA, SmbFile.ATTR_NORMAL, 0);

                final String className = entryName.substring(startPos, entryName.length() - CLASS_SUFFIX.length()).replace('/', '.');
                final int pos = className.lastIndexOf('.');
                final String packageName = pos == -1 ? null : className.substring(0, pos);
                final String shortClassName = pos == -1 ? className : className.substring(pos + 1);