paddingstringbuffertest.html

用JAVA编写的,在做实验的时候留下来的,本来想删的,但是传上来,大家分享吧

<a name="99" href="#99">99</a>  
<a name="100" href="#100">100</a>     <em>/**<em>* check the reset method clears the buffer */</em></em>
<a name="101" href="#101">101</a>     <strong>public</strong> <strong>void</strong> testReset() {
<a name="102" href="#102">102</a>         <em class="comment">// append something into the buffer</em>
<a name="103" href="#103">103</a>         assertEquals(<span class="string">"nothing in buffer"</span>, <span class="string">""</span>, buf.toString());
<a name="104" href="#104">104</a>         buf.append(<span class="string">"foo"</span>);
<a name="105" href="#105">105</a>         assertEquals(<span class="string">"buffer is 'foo'"</span>, <span class="string">"foo"</span>, buf.toString());
<a name="106" href="#106">106</a>         buf.reset();
<a name="107" href="#107">107</a>         assertEquals(<span class="string">"nothing in buffer after reset"</span>, <span class="string">""</span>, buf.toString());
<a name="108" href="#108">108</a>     }
<a name="109" href="#109">109</a> 
<a name="110" href="#110">110</a>     <em>/**<em>* test the raAppend(String) works in the simple cases */</em></em>
<a name="111" href="#111">111</a>     <strong>public</strong> <strong>void</strong> testRaAppend() {
<a name="112" href="#112">112</a>         <em class="comment">// a buf to hold the return buffer</em>
<a name="113" href="#113">113</a>         <a href="../../../org/archive/util/PaddingStringBuffer.html">PaddingStringBuffer</a> retBuf;
<a name="114" href="#114">114</a>         assertEquals(<span class="string">"nothing in buffer"</span>, <span class="string">""</span>, buf.toString());
<a name="115" href="#115">115</a>         retBuf = buf.raAppend(5, <span class="string">"foo"</span>);
<a name="116" href="#116">116</a>         assertEquals(<span class="string">"foo in buffer"</span>, <span class="string">"  foo"</span>, buf.toString());
<a name="117" href="#117">117</a>         assertEquals(<span class="string">"retBuf good"</span>, retBuf.toString(), buf.toString());
<a name="118" href="#118">118</a>         retBuf = buf.raAppend(9, <span class="string">"bar"</span>);
<a name="119" href="#119">119</a>         assertEquals(<span class="string">"foobar in buffer"</span>, <span class="string">"  foo bar"</span>, buf.toString());
<a name="120" href="#120">120</a>         assertEquals(<span class="string">"retBuf good"</span>, retBuf.toString(), buf.toString());
<a name="121" href="#121">121</a> 
<a name="122" href="#122">122</a>         <em class="comment">// now check with out-of-range columns - should just append</em>
<a name="123" href="#123">123</a>         buf = <strong>new</strong> <a href="../../../org/archive/util/PaddingStringBuffer.html">PaddingStringBuffer</a>();
<a name="124" href="#124">124</a>         buf.raAppend(-1, <span class="string">"foo"</span>);
<a name="125" href="#125">125</a>         assertEquals(<span class="string">"no padding for -1"</span>, <span class="string">"foo"</span>, buf.toString());
<a name="126" href="#126">126</a>         buf = <strong>new</strong> <a href="../../../org/archive/util/PaddingStringBuffer.html">PaddingStringBuffer</a>();
<a name="127" href="#127">127</a>         buf.raAppend(0, <span class="string">"foo"</span>);
<a name="128" href="#128">128</a>         assertEquals(<span class="string">"no padding for 0"</span>, <span class="string">"foo"</span>, buf.toString());
<a name="129" href="#129">129</a> 
<a name="130" href="#130">130</a>     }
<a name="131" href="#131">131</a> 
<a name="132" href="#132">132</a>     <em>/**<em>* test the newline() */</em></em>
<a name="133" href="#133">133</a>     <strong>public</strong> <strong>void</strong> testNewline(){
<a name="134" href="#134">134</a>         <a href="../../../org/archive/util/PaddingStringBuffer.html">PaddingStringBuffer</a> retBuf;
<a name="135" href="#135">135</a>         assertEquals(<span class="string">"nothing should be in the buffer"</span>, <span class="string">""</span>, buf.toString());
<a name="136" href="#136">136</a>         retBuf = buf.newline();
<a name="137" href="#137">137</a>         assertTrue(<span class="string">"should contain newline"</span>, buf.toString().indexOf('\n')!=-1);
<a name="138" href="#138">138</a>         assertEquals(<span class="string">"line position should be 0"</span>,0,buf.linePos);
<a name="139" href="#139">139</a>     }
<a name="140" href="#140">140</a> 
<a name="141" href="#141">141</a>     <em>/**<em>* check what happens when we right append, but the string is longer</em></em>
<a name="142" href="#142">142</a> <em>     * than the space */</em>
<a name="143" href="#143">143</a>     <strong>public</strong> <strong>void</strong> testRaAppendWithTooLongString() {
<a name="144" href="#144">144</a>         buf.raAppend(3,<span class="string">"foobar"</span>);
<a name="145" href="#145">145</a>         assertEquals(<span class="string">"no padding when padding col less than string length"</span>,
<a name="146" href="#146">146</a>                 <span class="string">"foobar"</span>, buf.toString());
<a name="147" href="#147">147</a>         buf.reset();
<a name="148" href="#148">148</a>     }
<a name="149" href="#149">149</a> 
<a name="150" href="#150">150</a>     <em>/**<em>* check it all works with the length == the length of the string */</em></em>
<a name="151" href="#151">151</a>     <strong>public</strong> <strong>void</strong> testRaAppendWithExactLengthString() {
<a name="152" href="#152">152</a>         buf.raAppend(6, <span class="string">"foobar"</span>);
<a name="153" href="#153">153</a>         buf.raAppend(12, <span class="string">"foobar"</span>);
<a name="154" href="#154">154</a>         assertEquals(<span class="string">"no padding with exact length string"</span>,
<a name="155" href="#155">155</a>                 <span class="string">"foobarfoobar"</span>, buf.toString());
<a name="156" href="#156">156</a>     }
<a name="157" href="#157">157</a> 
<a name="158" href="#158">158</a>     <em>/**<em>* check that append(int) works */</em></em>
<a name="159" href="#159">159</a>     <strong>public</strong> <strong>void</strong> testAppendInt() {
<a name="160" href="#160">160</a>         buf.append((<strong>int</strong>)1);
<a name="161" href="#161">161</a>         assertEquals(<span class="string">"buffer is '1'"</span>, <span class="string">"1"</span>, buf.toString());
<a name="162" href="#162">162</a>         buf.append((<strong>int</strong>)234);
<a name="163" href="#163">163</a>         assertEquals(<span class="string">"buffer is '1234'"</span>, <span class="string">"1234"</span>, buf.toString());
<a name="164" href="#164">164</a>     }
<a name="165" href="#165">165</a> 
<a name="166" href="#166">166</a>     <em>/**<em>* check that raAppend(int) works */</em></em>
<a name="167" href="#167">167</a>     <strong>public</strong> <strong>void</strong> testRaAppendInt() {
<a name="168" href="#168">168</a>         <em class="comment">// right-append '1' to column 5</em>
<a name="169" href="#169">169</a>         buf.raAppend(5, (<strong>int</strong>)1);
<a name="170" href="#170">170</a>         assertEquals(<span class="string">"buf is '    1'"</span>, <span class="string">"    1"</span>, buf.toString());
<a name="171" href="#171">171</a>         <em class="comment">// try appending a too-long int</em>
<a name="172" href="#172">172</a> 
<a name="173" href="#173">173</a>         buf.raAppend(6,(<strong>int</strong>)123);
<a name="174" href="#174">174</a>         assertEquals(<span class="string">"'123' appended"</span>, <span class="string">"    1123"</span>, buf.toString());
<a name="175" href="#175">175</a>     }
<a name="176" href="#176">176</a> 
<a name="177" href="#177">177</a>     <em>/**<em>* check that  append(long) works */</em></em>
<a name="178" href="#178">178</a>     <strong>public</strong> <strong>void</strong> testAppendLong() {
<a name="179" href="#179">179</a>         buf.append((<strong>long</strong>)1);
<a name="180" href="#180">180</a>         assertEquals(<span class="string">"buffer is '1'"</span>, <span class="string">"1"</span>, buf.toString());
<a name="181" href="#181">181</a>         buf.append((<strong>long</strong>)234);
<a name="182" href="#182">182</a>         assertEquals(<span class="string">"buffer is '1234'"</span>, <span class="string">"1234"</span>, buf.toString());
<a name="183" href="#183">183</a>     }
<a name="184" href="#184">184</a> 
<a name="185" href="#185">185</a>     <em>/**<em>* check that raAppend(long) works */</em></em>
<a name="186" href="#186">186</a>     <strong>public</strong> <strong>void</strong> testRaAppendLong() {
<a name="187" href="#187">187</a>         <em class="comment">// right-append '1' to column 5</em>
<a name="188" href="#188">188</a>         buf.raAppend(5, (<strong>long</strong>) 1);
<a name="189" href="#189">189</a>         assertEquals(<span class="string">"buf is '    1'"</span>, <span class="string">"    1"</span>, buf.toString());
<a name="190" href="#190">190</a>         <em class="comment">// try appending a too-long int</em>
<a name="191" href="#191">191</a> 
<a name="192" href="#192">192</a>         buf.raAppend(6, (<strong>long</strong>) 123);
<a name="193" href="#193">193</a>         assertEquals(<span class="string">"'123' appended"</span>, <span class="string">"    1123"</span>, buf.toString());
<a name="194" href="#194">194</a>     }
<a name="195" href="#195">195</a> 
<a name="196" href="#196">196</a>     <em>/**<em>* a temp buffer for testing with */</em></em>
<a name="197" href="#197">197</a>     <strong>private</strong> <a href="../../../org/archive/util/PaddingStringBuffer.html">PaddingStringBuffer</a> buf;
<a name="198" href="#198">198</a> }
<a name="199" href="#199">199</a> 
</pre>
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