| <!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="Source of the Rust file `/root/.cargo/registry/src/github.com-1ecc6299db9ec823/integer-encoding-1.1.7/src/varint_tests.rs`."><meta name="keywords" content="rust, rustlang, rust-lang"><title>varint_tests.rs - source</title><link rel="preload" as="font" type="font/woff2" crossorigin href="../../SourceSerif4-Regular.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../FiraSans-Regular.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../FiraSans-Medium.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../SourceCodePro-Regular.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../SourceSerif4-Bold.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../SourceCodePro-Semibold.ttf.woff2"><link rel="stylesheet" href="../../normalize.css"><link rel="stylesheet" href="../../rustdoc.css" id="mainThemeStyle"><link rel="stylesheet" href="../../ayu.css" disabled><link rel="stylesheet" href="../../dark.css" disabled><link rel="stylesheet" href="../../light.css" id="themeStyle"><script id="default-settings" ></script><script src="../../storage.js"></script><script defer src="../../source-script.js"></script><script defer src="../../source-files.js"></script><script defer src="../../main.js"></script><noscript><link rel="stylesheet" href="../../noscript.css"></noscript><link rel="alternate icon" type="image/png" href="../../favicon-16x16.png"><link rel="alternate icon" type="image/png" href="../../favicon-32x32.png"><link rel="icon" type="image/svg+xml" href="../../favicon.svg"></head><body class="rustdoc source"><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><a class="sidebar-logo" href="../../integer_encoding/index.html"><div class="logo-container"><img class="rust-logo" src="../../rust-logo.svg" alt="logo"></div></a></nav><main><div class="width-limiter"><nav class="sub"><a class="sub-logo-container" href="../../integer_encoding/index.html"><img class="rust-logo" src="../../rust-logo.svg" alt="logo"></a><form class="search-form"><div class="search-container"><span></span><input class="search-input" name="search" autocomplete="off" spellcheck="false" placeholder="Click or press ‘S’ to search, ‘?’ for more options…" type="search"><div id="help-button" title="help" tabindex="-1"><a href="../../help.html">?</a></div><div id="settings-menu" tabindex="-1"><a href="../../settings.html" title="settings"><img width="22" height="22" alt="Change settings" src="../../wheel.svg"></a></div></div></form></nav><section id="main-content" class="content"><div class="example-wrap"><pre class="src-line-numbers"><span id="1">1</span> |
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| </pre><pre class="rust"><code><span class="attribute">#[cfg(test)] |
| </span><span class="kw">mod </span>tests { |
| <span class="attribute">#[cfg(any(feature = <span class="string">"tokio_async"</span>, feature = <span class="string">"futures_async"</span>))] |
| </span><span class="kw">use </span><span class="kw">crate</span>::reader::VarIntAsyncReader; |
| <span class="attribute">#[cfg(any(feature = <span class="string">"tokio_async"</span>, feature = <span class="string">"futures_async"</span>))] |
| </span><span class="kw">use </span><span class="kw">crate</span>::writer::VarIntAsyncWriter; |
| |
| <span class="kw">use </span><span class="kw">crate</span>::writer::VarIntWriter; |
| <span class="kw">use </span><span class="kw">crate</span>::reader::VarIntReader; |
| <span class="kw">use </span><span class="kw">crate</span>::varint::VarInt; |
| |
| <span class="attribute">#[test] |
| </span><span class="kw">fn </span>test_required_space() { |
| <span class="macro">assert_eq!</span>((<span class="number">0 </span><span class="kw">as </span>u32).required_space(), <span class="number">1</span>); |
| <span class="macro">assert_eq!</span>((<span class="number">1 </span><span class="kw">as </span>u32).required_space(), <span class="number">1</span>); |
| <span class="macro">assert_eq!</span>((<span class="number">128 </span><span class="kw">as </span>u32).required_space(), <span class="number">2</span>); |
| <span class="macro">assert_eq!</span>((<span class="number">16384 </span><span class="kw">as </span>u32).required_space(), <span class="number">3</span>); |
| <span class="macro">assert_eq!</span>((<span class="number">2097151 </span><span class="kw">as </span>u32).required_space(), <span class="number">3</span>); |
| <span class="macro">assert_eq!</span>((<span class="number">2097152 </span><span class="kw">as </span>u32).required_space(), <span class="number">4</span>); |
| } |
| |
| <span class="attribute">#[test] |
| </span><span class="kw">fn </span>test_encode_u64() { |
| <span class="macro">assert_eq!</span>((<span class="number">0 </span><span class="kw">as </span>u32).encode_var_vec(), <span class="macro">vec!</span>[<span class="number">0b00000000</span>]); |
| <span class="macro">assert_eq!</span>((<span class="number">300 </span><span class="kw">as </span>u32).encode_var_vec(), <span class="macro">vec!</span>[<span class="number">0b10101100</span>, <span class="number">0b00000010</span>]); |
| } |
| |
| <span class="attribute">#[test] |
| </span><span class="kw">fn </span>test_identity_u64() { |
| <span class="kw">for </span>i <span class="kw">in </span><span class="number">1 </span><span class="kw">as </span>u64..<span class="number">100 </span>{ |
| <span class="macro">assert_eq!</span>(u64::decode_var(i.encode_var_vec().as_slice()), (i, <span class="number">1</span>)); |
| } |
| <span class="kw">for </span>i <span class="kw">in </span><span class="number">16400 </span><span class="kw">as </span>u64..<span class="number">16500 </span>{ |
| <span class="macro">assert_eq!</span>(u64::decode_var(<span class="kw-2">&</span>i.encode_var_vec().as_slice()), (i, <span class="number">3</span>)); |
| } |
| } |
| |
| <span class="attribute">#[test] |
| </span><span class="kw">fn </span>test_decode_max_u64() { |
| <span class="kw">let </span>max_vec_encoded = <span class="macro">vec!</span>[<span class="number">0xFF</span>, <span class="number">0xFF</span>, <span class="number">0xFF</span>, <span class="number">0xFF</span>, <span class="number">0xFF</span>, <span class="number">0xFF</span>, <span class="number">0xFF</span>, <span class="number">0xFF</span>, <span class="number">0xFF</span>, <span class="number">0x01</span>]; |
| <span class="macro">assert_eq!</span>( |
| u64::decode_var(max_vec_encoded.as_slice()).<span class="number">0</span>, |
| u64::max_value() |
| ); |
| } |
| |
| <span class="attribute">#[test] |
| </span><span class="kw">fn </span>test_encode_i64() { |
| <span class="macro">assert_eq!</span>((<span class="number">0 </span><span class="kw">as </span>i64).encode_var_vec(), (<span class="number">0 </span><span class="kw">as </span>u32).encode_var_vec()); |
| <span class="macro">assert_eq!</span>((<span class="number">150 </span><span class="kw">as </span>i64).encode_var_vec(), (<span class="number">300 </span><span class="kw">as </span>u32).encode_var_vec()); |
| <span class="macro">assert_eq!</span>( |
| (-<span class="number">150 </span><span class="kw">as </span>i64).encode_var_vec(), |
| (<span class="number">299 </span><span class="kw">as </span>u32).encode_var_vec() |
| ); |
| <span class="macro">assert_eq!</span>( |
| (-<span class="number">2147483648 </span><span class="kw">as </span>i64).encode_var_vec(), |
| (<span class="number">4294967295 </span><span class="kw">as </span>u64).encode_var_vec() |
| ); |
| <span class="macro">assert_eq!</span>( |
| (i64::max_value() <span class="kw">as </span>i64).encode_var_vec(), |
| <span class="kw-2">&</span>[<span class="number">0xFE</span>, <span class="number">0xFF</span>, <span class="number">0xFF</span>, <span class="number">0xFF</span>, <span class="number">0xFF</span>, <span class="number">0xFF</span>, <span class="number">0xFF</span>, <span class="number">0xFF</span>, <span class="number">0xFF</span>, <span class="number">0x01</span>] |
| ); |
| <span class="macro">assert_eq!</span>( |
| (i64::min_value() <span class="kw">as </span>i64).encode_var_vec(), |
| <span class="kw-2">&</span>[<span class="number">0xFF</span>, <span class="number">0xFF</span>, <span class="number">0xFF</span>, <span class="number">0xFF</span>, <span class="number">0xFF</span>, <span class="number">0xFF</span>, <span class="number">0xFF</span>, <span class="number">0xFF</span>, <span class="number">0xFF</span>, <span class="number">0x01</span>] |
| ); |
| } |
| |
| <span class="attribute">#[test] |
| </span><span class="kw">fn </span>test_decode_min_i64() { |
| <span class="kw">let </span>min_vec_encoded = <span class="macro">vec!</span>[<span class="number">0xFF</span>, <span class="number">0xFF</span>, <span class="number">0xFF</span>, <span class="number">0xFF</span>, <span class="number">0xFF</span>, <span class="number">0xFF</span>, <span class="number">0xFF</span>, <span class="number">0xFF</span>, <span class="number">0xFF</span>, <span class="number">0x01</span>]; |
| <span class="macro">assert_eq!</span>( |
| i64::decode_var(min_vec_encoded.as_slice()).<span class="number">0</span>, |
| i64::min_value() |
| ); |
| } |
| |
| <span class="attribute">#[test] |
| </span><span class="kw">fn </span>test_decode_max_i64() { |
| <span class="kw">let </span>max_vec_encoded = <span class="macro">vec!</span>[<span class="number">0xFE</span>, <span class="number">0xFF</span>, <span class="number">0xFF</span>, <span class="number">0xFF</span>, <span class="number">0xFF</span>, <span class="number">0xFF</span>, <span class="number">0xFF</span>, <span class="number">0xFF</span>, <span class="number">0xFF</span>, <span class="number">0x01</span>]; |
| <span class="macro">assert_eq!</span>( |
| i64::decode_var(max_vec_encoded.as_slice()).<span class="number">0</span>, |
| i64::max_value() |
| ); |
| } |
| |
| <span class="attribute">#[test] |
| </span><span class="kw">fn </span>test_encode_i16() { |
| <span class="macro">assert_eq!</span>((<span class="number">150 </span><span class="kw">as </span>i16).encode_var_vec(), (<span class="number">300 </span><span class="kw">as </span>u32).encode_var_vec()); |
| <span class="macro">assert_eq!</span>( |
| (-<span class="number">150 </span><span class="kw">as </span>i16).encode_var_vec(), |
| (<span class="number">299 </span><span class="kw">as </span>u32).encode_var_vec() |
| ); |
| } |
| |
| <span class="attribute">#[test] |
| </span><span class="kw">fn </span>test_reader_writer() { |
| <span class="kw">let </span><span class="kw-2">mut </span>buf = Vec::with_capacity(<span class="number">128</span>); |
| |
| <span class="kw">let </span>i1: u32 = <span class="number">1</span>; |
| <span class="kw">let </span>i2: u32 = <span class="number">65532</span>; |
| <span class="kw">let </span>i3: u32 = <span class="number">4200123456</span>; |
| <span class="kw">let </span>i4: i64 = i3 <span class="kw">as </span>i64 * <span class="number">1000</span>; |
| <span class="kw">let </span>i5: i32 = -<span class="number">32456</span>; |
| |
| <span class="macro">assert!</span>(buf.write_varint(i1).is_ok()); |
| <span class="macro">assert!</span>(buf.write_varint(i2).is_ok()); |
| <span class="macro">assert!</span>(buf.write_varint(i3).is_ok()); |
| <span class="macro">assert!</span>(buf.write_varint(i4).is_ok()); |
| <span class="macro">assert!</span>(buf.write_varint(i5).is_ok()); |
| |
| <span class="kw">let </span><span class="kw-2">mut </span>reader: <span class="kw-2">&</span>[u8] = buf.as_ref(); |
| |
| <span class="macro">assert_eq!</span>(i1, reader.read_varint().unwrap()); |
| <span class="macro">assert_eq!</span>(i2, reader.read_varint().unwrap()); |
| <span class="macro">assert_eq!</span>(i3, reader.read_varint().unwrap()); |
| <span class="macro">assert_eq!</span>(i4, reader.read_varint().unwrap()); |
| <span class="macro">assert_eq!</span>(i5, reader.read_varint().unwrap()); |
| |
| <span class="macro">assert!</span>(reader.read_varint::<u32>().is_err()); |
| } |
| |
| <span class="attribute">#[cfg(any(feature = <span class="string">"tokio_async"</span>, feature = <span class="string">"futures_async"</span>))] |
| #[tokio::test] |
| </span><span class="kw">async fn </span>test_async_reader() { |
| <span class="kw">let </span><span class="kw-2">mut </span>buf = Vec::with_capacity(<span class="number">128</span>); |
| |
| <span class="kw">let </span>i1: u32 = <span class="number">1</span>; |
| <span class="kw">let </span>i2: u32 = <span class="number">65532</span>; |
| <span class="kw">let </span>i3: u32 = <span class="number">4200123456</span>; |
| <span class="kw">let </span>i4: i64 = i3 <span class="kw">as </span>i64 * <span class="number">1000</span>; |
| <span class="kw">let </span>i5: i32 = -<span class="number">32456</span>; |
| |
| buf.write_varint_async(i1).<span class="kw">await</span>.unwrap(); |
| buf.write_varint_async(i2).<span class="kw">await</span>.unwrap(); |
| buf.write_varint_async(i3).<span class="kw">await</span>.unwrap(); |
| buf.write_varint_async(i4).<span class="kw">await</span>.unwrap(); |
| buf.write_varint_async(i5).<span class="kw">await</span>.unwrap(); |
| |
| <span class="kw">let </span><span class="kw-2">mut </span>reader: <span class="kw-2">&</span>[u8] = buf.as_ref(); |
| |
| <span class="macro">assert_eq!</span>(i1, reader.read_varint_async().<span class="kw">await</span>.unwrap()); |
| <span class="macro">assert_eq!</span>(i2, reader.read_varint_async().<span class="kw">await</span>.unwrap()); |
| <span class="macro">assert_eq!</span>(i3, reader.read_varint_async().<span class="kw">await</span>.unwrap()); |
| <span class="macro">assert_eq!</span>(i4, reader.read_varint_async().<span class="kw">await</span>.unwrap()); |
| <span class="macro">assert_eq!</span>(i5, reader.read_varint_async().<span class="kw">await</span>.unwrap()); |
| <span class="macro">assert!</span>(reader.read_varint_async::<u32>().<span class="kw">await</span>.is_err()); |
| } |
| |
| <span class="attribute">#[test] |
| </span><span class="kw">fn </span>test_unterminated_varint() { |
| <span class="kw">let </span>buf = <span class="macro">vec!</span>[<span class="number">0xff </span><span class="kw">as </span>u8; <span class="number">12</span>]; |
| <span class="kw">let </span><span class="kw-2">mut </span>read = buf.as_slice(); |
| <span class="macro">assert!</span>(read.read_varint::<u64>().is_err()); |
| } |
| |
| <span class="attribute">#[test] |
| </span><span class="kw">fn </span>test_unterminated_varint_2() { |
| <span class="kw">let </span>buf = [<span class="number">0xff</span>, <span class="number">0xff</span>]; |
| <span class="kw">let </span><span class="kw-2">mut </span>read = <span class="kw-2">&</span>buf[..]; |
| <span class="macro">assert_eq!</span>(<span class="number">16383</span>, read.read_varint::<u64>().unwrap()); |
| } |
| } |
| </code></pre></div> |
| </section></div></main><div id="rustdoc-vars" data-root-path="../../" data-current-crate="integer_encoding" data-themes="ayu,dark,light" data-resource-suffix="" data-rustdoc-version="1.66.0-nightly (5c8bff74b 2022-10-21)" ></div></body></html> |
