> For the complete documentation index, see [llms.txt](https://docs.netcap.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.netcap.io/tests.md).

# Unit Tests

## Prerequisites

Some of the tests operate on a dump file that is not in the repository.

You can download it with:

```
$ zeus download-test-pcap
```

which will basically just invoke:

```
wget https://weberblog.net/wp-content/uploads/2020/02/The-Ultimate-PCAP.7z
```

Now unpack the file and move it to the tests folder in the project root.

## Unit Tests

Unit tests have been implemented for parts of the core functionality. Currently there are basic tests for reading pcap data from files and traffic live from an interface, as well as tests and benchmarks for common utility functions, such progress displaying and time conversions.&#x20;

The tests and benchmarks can be executed from the repository root by executing the following from the project root:

```
$ go test -v ./...
=== RUN   TestCountRecords
--- PASS: TestCountRecords (0.18s)
=== RUN   TestReader
--- PASS: TestReader (0.01s)
=== RUN   TestWriter
--- PASS: TestWriter (0.06s)
PASS
ok  	github.com/dreadl0ck/netcap	0.862s
?   	github.com/dreadl0ck/netcap/cmd	[no test files]
?   	github.com/dreadl0ck/netcap/cmd/agent	[no test files]
?   	github.com/dreadl0ck/netcap/cmd/capture	[no test files]
?   	github.com/dreadl0ck/netcap/cmd/collect	[no test files]
?   	github.com/dreadl0ck/netcap/cmd/dump	[no test files]
?   	github.com/dreadl0ck/netcap/cmd/export	[no test files]
?   	github.com/dreadl0ck/netcap/cmd/label	[no test files]
?   	github.com/dreadl0ck/netcap/cmd/proxy	[no test files]
?   	github.com/dreadl0ck/netcap/cmd/split	[no test files]
?   	github.com/dreadl0ck/netcap/cmd/transform	[no test files]
?   	github.com/dreadl0ck/netcap/cmd/util	[no test files]
=== RUN   TestCollectPCA
done in 2.595847118s
--- PASS: TestCollectPCAP (2.60s)
PASS
ok  	github.com/dreadl0ck/netcap/collector	3.242s
=== RUN   TestCorruptedWriter
    TestCorruptedWriter: delimited_test.go:46: Put record returned expected error: BAD
--- PASS: TestCorruptedWriter (0.00s)
=== RUN   TestGoodWriter
--- PASS: TestGoodWriter (0.00s)
=== RUN   TestCorruptedReader
    TestCorruptedReader: delimited_test.go:87: Next record returned expected error: unexpected EOF
--- PASS: TestCorruptedReader (0.00s)
=== RUN   TestGoodReader
--- PASS: TestGoodReader (0.00s)
=== RUN   TestRoundTrip
    TestRoundTrip: delimited_test.go:136: After writing: buffer="\x04Some\x02of\x04what\x01a\x04fool\x06thinks\x05often\bremains." len=42
--- PASS: TestRoundTrip (0.00s)
PASS
ok  	github.com/dreadl0ck/netcap/delimited	0.526s
?   	github.com/dreadl0ck/netcap/dpi	[no test files]
?   	github.com/dreadl0ck/netcap/encoder	[no test files]
?   	github.com/dreadl0ck/netcap/io	[no test files]
?   	github.com/dreadl0ck/netcap/label	[no test files]
?   	github.com/dreadl0ck/netcap/maltego	[no test files]
?   	github.com/dreadl0ck/netcap/metrics	[no test files]
?   	github.com/dreadl0ck/netcap/resolvers	[no test files]
=== RUN   TestMarshal
--- PASS: TestMarshal (0.00s)
PASS
ok  	github.com/dreadl0ck/netcap/types	0.668s
=== RUN   TestTimeToString
--- PASS: TestTimeToString (0.00s)
=== RUN   TestStringToTime
--- PASS: TestStringToTime (0.00s)
PASS
ok  	github.com/dreadl0ck/netcap/utils	0.932s
```

## Benchmarks

Run the benchmarks using:

```
$ go test -bench=. ./... | grep -E "Bench|pkg"
pkg: github.com/dreadl0ck/netcap/collector
BenchmarkReadPcapNG-12            	 1265539	       844 ns/op	    1249 B/op	       1 allocs/op
BenchmarkReadPcapNGZeroCopy-12    	 2028283	       640 ns/op	       0 B/op	       0 allocs/op
BenchmarkReadPcap-12              	 7557667	       137 ns/op	     106 B/op	       1 allocs/op
pkg: github.com/dreadl0ck/netcap/types
BenchmarkMarshal-12      	 9817819	       110 ns/op	      64 B/op	       1 allocs/op
BenchmarkUnmarshal-12    	 8703766	       134 ns/op	      40 B/op	       2 allocs/op
pkg: github.com/dreadl0ck/netcap/utils
BenchmarkTimeToStringOld-12           	 5283726	       229 ns/op	      64 B/op	       4 allocs/op
BenchmarkTimeToString-12              	 8273997	       136 ns/op	      80 B/op	       3 allocs/op
BenchmarkStringToTime-12              	 8842005	       137 ns/op	      32 B/op	       1 allocs/op
BenchmarkStringToTimeFieldsFunc-12    	 6809409	       185 ns/op	      32 B/op	       1 allocs/op
BenchmarkProgressOld-12               	54425902	        21.0 ns/op	       0 B/op	       0 allocs/op
BenchmarkProgress-12                  	23389420	        45.9 ns/op	      16 B/op	       2 allocs/op
```

## Race Detection Tests

Run the tests with race detection enabled:

```
$ go test -race -v ./...
```


---

# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter:

```
GET https://docs.netcap.io/tests.md?ask=<question>&goal=<endgoal>
```

`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal.

The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.
