<jupyter_start><jupyter_text>Testing and Coverage  File naming conventiongo test files use `_test.go` naming convention and resides alongside the source. `go build` is smart enough to ignore the tests<jupyter_code>// Simple example
package packagename

import "testing"


func TestFunctionWorks(t *testing.T) {
    var result = RunFoobar(inputs)
    if result != expected {
        t.Fatalf("%v expected but got %v", expected, result)
    }
}<jupyter_output><empty_output>
{'fraction_non_alphanumeric': 0.08898305084745763, 'fraction_numerical': 0.0, 'mean_word_length': 4.630952380952381, 'pattern_counts': {'":': 0, '<': 5, '<?xml version=': 0, '>': 5, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
{'chain_length': '1', 'dir': 'jupyter-structured-clean-dedup', 'id': '281066', 'license': 'MIT', 'n_tokens_mistral': 148, 'n_tokens_neox': 140, 'n_words': 49, 'path': 'go/lang/testing-coverage.ipynb', 'repo_name': 'sthaha/notes', 'size': '472'}