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<h2 title="Class TestUtil" class="title">Class TestUtil</h2>
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<pre>public abstract class <span class="typeNameLabel">TestUtil</span>
extends java.lang.Object</pre>
<div class="block">Static utilities for JUnit tests.</div>
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<td class="colFirst"><code>private static class&nbsp;</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="TestUtil.ExtraInformation.html" title="class in org.apache.calcite.util">TestUtil.ExtraInformation</a></span></code></th>
<td class="colLast">
<div class="block">This is to be used by <a href="#rethrow(java.lang.Throwable,java.lang.String)"><code>rethrow(Throwable, String)</code></a> to add extra information via
<code>Throwable.addSuppressed(Throwable)</code>.</div>
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<td class="colFirst"><code>private static java.lang.String</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#JAVA_VERSION">JAVA_VERSION</a></span></code></th>
<td class="colLast">&nbsp;</td>
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<td class="colFirst"><code>private static java.lang.String</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#LINE_BREAK">LINE_BREAK</a></span></code></th>
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<td class="colFirst"><code>private static java.util.regex.Pattern</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#LINE_BREAK_PATTERN">LINE_BREAK_PATTERN</a></span></code></th>
<td class="colLast">&nbsp;</td>
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<td class="colFirst"><code>private static java.util.regex.Pattern</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#TAB_PATTERN">TAB_PATTERN</a></span></code></th>
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<td class="colFirst"><code>static void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#assertEqualsVerbose(java.lang.String,java.lang.String)">assertEqualsVerbose</a></span>&#8203;(java.lang.String&nbsp;expected,
java.lang.String&nbsp;actual)</code></th>
<td class="colLast">&nbsp;</td>
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<tr id="i1" class="rowColor">
<td class="colFirst"><code>static java.lang.String</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#escapeString(java.lang.String)">escapeString</a></span>&#8203;(java.lang.String&nbsp;s)</code></th>
<td class="colLast">
<div class="block">Quotes a string for Java or JSON.</div>
</td>
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<td class="colFirst"><code>static java.lang.StringBuilder</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#escapeString(java.lang.StringBuilder,java.lang.String)">escapeString</a></span>&#8203;(java.lang.StringBuilder&nbsp;buf,
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<td class="colLast">
<div class="block">Quotes a string for Java or JSON, into a builder.</div>
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<tr id="i3" class="rowColor">
<td class="colFirst"><code>static java.lang.String</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#fold(java.lang.String...)">fold</a></span>&#8203;(java.lang.String...&nbsp;strings)</code></th>
<td class="colLast">
<div class="block">Combines an array of strings, each representing a line, into a single
string containing line separators.</div>
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<td class="colFirst"><code>static int</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getJavaMajorVersion()">getJavaMajorVersion</a></span>()</code></th>
<td class="colLast">
<div class="block">Returns the Java major version: 7 for JDK 1.7, 8 for JDK 8, 10 for
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</td>
</tr>
<tr id="i5" class="rowColor">
<td class="colFirst"><code>static boolean</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#hasMessage(java.lang.Throwable,java.lang.String)">hasMessage</a></span>&#8203;(java.lang.Throwable&nbsp;t,
java.lang.String&nbsp;substring)</code></th>
<td class="colLast">
<div class="block">Checks if exceptions have give substring.</div>
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<tr id="i6" class="altColor">
<td class="colFirst"><code>(package private) static int</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#majorVersionFromString(java.lang.String)">majorVersionFromString</a></span>&#8203;(java.lang.String&nbsp;version)</code></th>
<td class="colLast">
<div class="block">Detects java major version given long format of full JDK version.</div>
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<tr id="i7" class="rowColor">
<td class="colFirst"><code>static java.lang.String</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#printStackTrace(java.lang.Throwable)">printStackTrace</a></span>&#8203;(java.lang.Throwable&nbsp;t)</code></th>
<td class="colLast">
<div class="block">Returns string representation of the given <code>Throwable</code>.</div>
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<td class="colFirst"><code>static java.lang.String</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#quoteForJava(java.lang.String)">quoteForJava</a></span>&#8203;(java.lang.String&nbsp;s)</code></th>
<td class="colLast">
<div class="block">Converts a string (which may contain quotes and newlines) into a java
literal.</div>
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<tr id="i9" class="rowColor">
<td class="colFirst"><code>static java.lang.String</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#quotePattern(java.lang.String)">quotePattern</a></span>&#8203;(java.lang.String&nbsp;s)</code></th>
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<td class="colLast">
<div class="block">Rethrows given exception keeping stacktraces clean and compact.</div>
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java.lang.String&nbsp;message)</code></th>
<td class="colLast">
<div class="block">Rethrows given exception keeping stacktraces clean and compact.</div>
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<tr id="i12" class="altColor">
<td class="colFirst"><code>static java.lang.String</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#toJavaString(java.lang.String)">toJavaString</a></span>&#8203;(java.lang.String&nbsp;s)</code></th>
<td class="colLast">
<div class="block">Converts a string (which may contain quotes and newlines) into a java
literal.</div>
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<h3>Methods inherited from class&nbsp;java.lang.Object</h3>
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<pre>private static final&nbsp;java.util.regex.Pattern LINE_BREAK_PATTERN</pre>
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<pre>private static final&nbsp;java.util.regex.Pattern TAB_PATTERN</pre>
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<pre><code>string with "quotes" split
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<blockquote><pre><code>"string with \"quotes\" split" + NL +
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literal.
<p>For example,</p>
<blockquote><pre><code>string with "quotes" split
across lines</code></pre></blockquote>
<p>becomes</p>
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<pre class="methodSignature">public static&nbsp;java.lang.String&nbsp;fold&#8203;(java.lang.String...&nbsp;strings)</pre>
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<pre class="methodSignature">public static&nbsp;java.lang.String&nbsp;escapeString&#8203;(java.lang.String&nbsp;s)</pre>
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<pre class="methodSignature">public static&nbsp;java.lang.StringBuilder&nbsp;escapeString&#8203;(java.lang.StringBuilder&nbsp;buf,
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<div class="block">Quotes a string for Java or JSON, into a builder.</div>
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<pre class="methodSignature">static&nbsp;int&nbsp;majorVersionFromString&#8203;(java.lang.String&nbsp;version)</pre>
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<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>version</code> - current version as string usually from <code>java.version</code> property.</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>major java version (<code>8, 9, 10, 11</code> etc.)</dd>
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<pre class="methodSignature">public static&nbsp;boolean&nbsp;hasMessage&#8203;(java.lang.Throwable&nbsp;t,
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<div class="block">Checks if exceptions have give substring. That is handy to prevent logging SQL text twice</div>
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<pre class="methodSignature">public static&nbsp;&lt;E extends java.lang.Throwable&gt;&nbsp;java.lang.RuntimeException&nbsp;rethrow&#8203;(java.lang.Throwable&nbsp;e)
throws E extends java.lang.Throwable</pre>
<div class="block">Rethrows given exception keeping stacktraces clean and compact.</div>
<dl>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code>E extends java.lang.Throwable</code></dd>
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<pre class="methodSignature">public static&nbsp;&lt;E extends java.lang.Throwable&gt;&nbsp;java.lang.RuntimeException&nbsp;rethrow&#8203;(java.lang.Throwable&nbsp;e,
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throws E extends java.lang.Throwable</pre>
<div class="block">Rethrows given exception keeping stacktraces clean and compact.</div>
<dl>
<dt><span class="throwsLabel">Throws:</span></dt>
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<h4>printStackTrace</h4>
<pre class="methodSignature">public static&nbsp;java.lang.String&nbsp;printStackTrace&#8203;(java.lang.Throwable&nbsp;t)</pre>
<div class="block">Returns string representation of the given <code>Throwable</code>.</div>
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