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denoland-deno/cli/tests/integration/coverage_tests.rs
Bartek Iwańczuk 5b2caed7fd
fix(coverage): error if no files found (#21615)
This commit fixes a panic in `deno coverage` command if the file
to be covered doesn't produce any coverage data.

Fixes https://github.com/denoland/deno/issues/21580
2023-12-18 11:43:27 +01:00

638 lines
17 KiB
Rust

// Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.
use deno_core::serde_json;
use std::fs;
use test_util as util;
use test_util::TempDir;
use util::assert_starts_with;
use util::env_vars_for_npm_tests;
use util::TestContext;
use util::TestContextBuilder;
#[test]
fn branch() {
run_coverage_text("branch", "ts");
}
#[test]
fn complex() {
run_coverage_text("complex", "ts");
}
#[test]
fn final_blankline() {
run_coverage_text("final_blankline", "js");
}
#[test]
fn no_snaps() {
no_snaps_included("no_snaps_included", "ts");
}
// TODO(mmastrac): The exclusion to make this test pass doesn't seem to work on windows.
#[cfg_attr(windows, ignore)]
#[test]
fn no_tests() {
no_tests_included("foo", "mts");
no_tests_included("foo", "ts");
no_tests_included("foo", "js");
}
#[test]
fn error_if_invalid_cache() {
let context = TestContextBuilder::new().use_temp_cwd().build();
let temp_dir_path = context.temp_dir().path();
let other_temp_dir = TempDir::new();
let other_tempdir = other_temp_dir.path().join("cov");
let invalid_cache_path = util::testdata_path().join("coverage/invalid_cache");
let mod_before_path = util::testdata_path()
.join(&invalid_cache_path)
.join("mod_before.ts");
let mod_after_path = util::testdata_path()
.join(&invalid_cache_path)
.join("mod_after.ts");
let mod_test_path = util::testdata_path()
.join(&invalid_cache_path)
.join("mod.test.ts");
let mod_temp_path = temp_dir_path.join("mod.ts");
let mod_test_temp_path = temp_dir_path.join("mod.test.ts");
// Write the initial mod.ts file
std::fs::copy(mod_before_path, &mod_temp_path).unwrap();
// And the test file
std::fs::copy(mod_test_path, mod_test_temp_path).unwrap();
// Generate coverage
let output = context
.new_command()
.args_vec(vec![
"test".to_string(),
"--quiet".to_string(),
format!("--coverage={}", other_tempdir),
])
.run();
output.assert_exit_code(0);
output.skip_output_check();
// Modify the file between deno test and deno coverage, thus invalidating the cache
std::fs::copy(mod_after_path, mod_temp_path).unwrap();
let output = context
.new_command()
.args_vec(vec!["coverage".to_string(), format!("{}/", other_tempdir)])
.run();
output.assert_exit_code(1);
let out = output.combined_output();
// Expect error
let error = util::strip_ansi_codes(out).to_string();
assert!(error.contains("error: Missing transpiled source code"));
assert!(error.contains("Before generating coverage report, run `deno test --coverage` to ensure consistent state."));
}
fn run_coverage_text(test_name: &str, extension: &str) {
let context = TestContext::default();
let tempdir = context.temp_dir();
let tempdir = tempdir.path().join("cov");
let output = context
.new_command()
.args_vec(vec![
"test".to_string(),
"-A".to_string(),
"--quiet".to_string(),
format!("--coverage={}", tempdir),
format!("coverage/{test_name}_test.{extension}"),
])
.run();
output.assert_exit_code(0);
output.skip_output_check();
let output = context
.new_command()
.args_vec(vec![
"coverage".to_string(),
"--detailed".to_string(),
format!("{}/", tempdir),
])
.split_output()
.run();
// Verify there's no "Check" being printed
assert!(output.stderr().is_empty());
let actual = util::strip_ansi_codes(output.stdout()).to_string();
let expected = fs::read_to_string(
util::testdata_path().join(format!("coverage/{test_name}_expected.out")),
)
.unwrap();
if !util::wildcard_match(&expected, &actual) {
println!("OUTPUT\n{actual}\nOUTPUT");
println!("EXPECTED\n{expected}\nEXPECTED");
panic!("pattern match failed");
}
output.assert_exit_code(0);
let output = context
.new_command()
.args_vec(vec![
"coverage".to_string(),
"--quiet".to_string(),
"--lcov".to_string(),
format!("{}/", tempdir),
])
.run();
let actual = util::strip_ansi_codes(output.combined_output()).to_string();
let expected = fs::read_to_string(
util::testdata_path().join(format!("coverage/{test_name}_expected.lcov")),
)
.unwrap();
if !util::wildcard_match(&expected, &actual) {
println!("OUTPUT\n{actual}\nOUTPUT");
println!("EXPECTED\n{expected}\nEXPECTED");
panic!("pattern match failed");
}
output.assert_exit_code(0);
}
#[test]
fn multifile_coverage() {
let context = TestContext::default();
let tempdir = context.temp_dir();
let tempdir = tempdir.path().join("cov");
let output = context
.new_command()
.args_vec(vec![
"test".to_string(),
"--quiet".to_string(),
format!("--coverage={}", tempdir),
format!("coverage/multifile/"),
])
.run();
output.assert_exit_code(0);
output.skip_output_check();
let output = context
.new_command()
.args_vec(vec![
"coverage".to_string(),
"--detailed".to_string(),
format!("{}/", tempdir),
])
.split_output()
.run();
// Verify there's no "Check" being printed
assert!(output.stderr().is_empty());
let actual = util::strip_ansi_codes(output.stdout()).to_string();
let expected = fs::read_to_string(
util::testdata_path().join("coverage/multifile/expected.out"),
)
.unwrap();
if !util::wildcard_match(&expected, &actual) {
println!("OUTPUT\n{actual}\nOUTPUT");
println!("EXPECTED\n{expected}\nEXPECTED");
panic!("pattern match failed");
}
output.assert_exit_code(0);
let output = context
.new_command()
.args_vec(vec![
"coverage".to_string(),
"--quiet".to_string(),
"--lcov".to_string(),
format!("{}/", tempdir),
])
.run();
let actual = util::strip_ansi_codes(output.combined_output()).to_string();
let expected = fs::read_to_string(
util::testdata_path().join("coverage/multifile/expected.lcov"),
)
.unwrap();
if !util::wildcard_match(&expected, &actual) {
println!("OUTPUT\n{actual}\nOUTPUT");
println!("EXPECTED\n{expected}\nEXPECTED");
panic!("pattern match failed");
}
output.assert_exit_code(0);
}
fn no_snaps_included(test_name: &str, extension: &str) {
let context = TestContext::default();
let tempdir = context.temp_dir();
let tempdir = tempdir.path().join("cov");
let output = context
.new_command()
.args_vec(vec![
"test".to_string(),
"--quiet".to_string(),
"--allow-read".to_string(),
format!("--coverage={}", tempdir),
format!("coverage/no_snaps_included/{test_name}_test.{extension}"),
])
.run();
output.assert_exit_code(0);
output.skip_output_check();
let output = context
.new_command()
.args_vec(vec![
"coverage".to_string(),
"--include=no_snaps_included.ts".to_string(),
"--detailed".to_string(),
format!("{}/", tempdir),
])
.split_output()
.run();
// Verify there's no "Check" being printed
assert!(output.stderr().is_empty());
let actual = util::strip_ansi_codes(output.stdout()).to_string();
let expected = fs::read_to_string(
util::testdata_path().join("coverage/no_snaps_included/expected.out"),
)
.unwrap();
if !util::wildcard_match(&expected, &actual) {
println!("OUTPUT\n{actual}\nOUTPUT");
println!("EXPECTED\n{expected}\nEXPECTED");
panic!("pattern match failed");
}
output.assert_exit_code(0);
}
fn no_tests_included(test_name: &str, extension: &str) {
let context = TestContext::default();
let tempdir = context.temp_dir();
let tempdir = tempdir.path().join("cov");
let output = context
.new_command()
.args_vec(vec![
"test".to_string(),
"--quiet".to_string(),
"--allow-read".to_string(),
format!("--coverage={}", tempdir),
format!("coverage/no_tests_included/{test_name}.test.{extension}"),
])
.run();
output.assert_exit_code(0);
output.skip_output_check();
let output = context
.new_command()
.args_vec(vec![
"coverage".to_string(),
format!("--exclude={}", util::std_path().canonicalize()),
"--detailed".to_string(),
format!("{}/", tempdir),
])
.split_output()
.run();
// Verify there's no "Check" being printed
assert!(output.stderr().is_empty());
let actual = util::strip_ansi_codes(output.stdout()).to_string();
let expected = fs::read_to_string(
util::testdata_path().join("coverage/no_tests_included/expected.out"),
)
.unwrap();
if !util::wildcard_match(&expected, &actual) {
println!("OUTPUT\n{actual}\nOUTPUT");
println!("EXPECTED\n{expected}\nEXPECTED");
panic!("pattern match failed");
}
output.assert_exit_code(0);
}
#[test]
fn no_npm_cache_coverage() {
let context = TestContext::with_http_server();
let tempdir = context.temp_dir();
let tempdir = tempdir.path().join("cov");
let output = context
.new_command()
.args_vec(vec![
"test".to_string(),
"--quiet".to_string(),
"--allow-read".to_string(),
format!("--coverage={}", tempdir),
format!("coverage/no_npm_coverage/no_npm_coverage_test.ts"),
])
.envs(env_vars_for_npm_tests())
.run();
output.assert_exit_code(0);
output.skip_output_check();
let output = context
.new_command()
.args_vec(vec![
"coverage".to_string(),
"--detailed".to_string(),
format!("{}/", tempdir),
])
.split_output()
.run();
// Verify there's no "Check" being printed
assert!(output.stderr().is_empty());
let actual = util::strip_ansi_codes(output.stdout()).to_string();
let expected = fs::read_to_string(
util::testdata_path().join("coverage/no_npm_coverage/expected.out"),
)
.unwrap();
if !util::wildcard_match(&expected, &actual) {
println!("OUTPUT\n{actual}\nOUTPUT");
println!("EXPECTED\n{expected}\nEXPECTED");
panic!("pattern match failed");
}
output.assert_exit_code(0);
}
#[test]
fn no_transpiled_lines() {
let context = TestContext::default();
let tempdir = context.temp_dir();
let tempdir = tempdir.path().join("cov");
let output = context
.new_command()
.args_vec(vec![
"test".to_string(),
"--quiet".to_string(),
format!("--coverage={}", tempdir),
"coverage/no_transpiled_lines/".to_string(),
])
.run();
output.assert_exit_code(0);
output.skip_output_check();
let output = context
.new_command()
.args_vec(vec![
"coverage".to_string(),
"--include=no_transpiled_lines/index.ts".to_string(),
"--detailed".to_string(),
format!("{}/", tempdir),
])
.run();
let actual = util::strip_ansi_codes(output.combined_output()).to_string();
let expected = fs::read_to_string(
util::testdata_path().join("coverage/no_transpiled_lines/expected.out"),
)
.unwrap();
if !util::wildcard_match(&expected, &actual) {
println!("OUTPUT\n{actual}\nOUTPUT");
println!("EXPECTED\n{expected}\nEXPECTED");
panic!("pattern match failed");
}
output.assert_exit_code(0);
let output = context
.new_command()
.args_vec(vec![
"coverage".to_string(),
"--lcov".to_string(),
"--include=no_transpiled_lines/index.ts".to_string(),
format!("{}/", tempdir),
])
.run();
let actual = util::strip_ansi_codes(output.combined_output()).to_string();
let expected = fs::read_to_string(
util::testdata_path().join("coverage/no_transpiled_lines/expected.lcov"),
)
.unwrap();
if !util::wildcard_match(&expected, &actual) {
println!("OUTPUT\n{actual}\nOUTPUT");
println!("EXPECTED\n{expected}\nEXPECTED");
panic!("pattern match failed");
}
output.assert_exit_code(0);
}
#[test]
fn no_internal_code() {
let context = TestContext::default();
let tempdir = context.temp_dir();
let tempdir = tempdir.path().join("cov");
let output = context
.new_command()
.args_vec(vec![
"test".to_string(),
"--quiet".to_string(),
format!("--coverage={}", tempdir),
"coverage/no_internal_code_test.ts".to_string(),
])
.run();
output.assert_exit_code(0);
output.skip_output_check();
// Check that coverage files contain no internal urls
let paths = fs::read_dir(tempdir).unwrap();
for path in paths {
let unwrapped = path.unwrap().path();
let data = fs::read_to_string(&unwrapped.clone()).unwrap();
let value: serde_json::Value = serde_json::from_str(&data).unwrap();
let url = value["url"].as_str().unwrap();
assert_starts_with!(url, "file:");
}
}
#[test]
fn no_internal_node_code() {
let context = TestContext::default();
let tempdir = context.temp_dir();
let tempdir = tempdir.path().join("cov");
let output = context
.new_command()
.args_vec(vec![
"test".to_string(),
"--quiet".to_string(),
"--no-check".to_string(),
format!("--coverage={}", tempdir),
"coverage/no_internal_node_code_test.ts".to_string(),
])
.run();
output.assert_exit_code(0);
output.skip_output_check();
// Check that coverage files contain no internal urls
let paths = fs::read_dir(tempdir).unwrap();
for path in paths {
let unwrapped = path.unwrap().path();
let data = fs::read_to_string(&unwrapped.clone()).unwrap();
let value: serde_json::Value = serde_json::from_str(&data).unwrap();
let url = value["url"].as_str().unwrap();
assert_starts_with!(url, "file:");
}
}
#[test]
fn test_html_reporter() {
let context = TestContext::default();
let tempdir = context.temp_dir();
let tempdir = tempdir.path().join("cov");
let output = context
.new_command()
.args_vec(vec![
"test".to_string(),
"--quiet".to_string(),
format!("--coverage={}", tempdir),
"coverage/multisource".to_string(),
])
.run();
output.assert_exit_code(0);
output.skip_output_check();
let output = context
.new_command()
.args_vec(vec![
"coverage".to_string(),
"--html".to_string(),
format!("{}/", tempdir),
])
.run();
output.assert_exit_code(0);
output.assert_matches_text("HTML coverage report has been generated at [WILDCARD]/cov/html/index.html\n");
let index_html =
fs::read_to_string(tempdir.join("html").join("index.html")).unwrap();
assert!(index_html.contains("<h1>Coverage report for all files</h1>"));
assert!(index_html.contains("baz/"));
assert!(index_html.contains("href='baz/index.html'"));
assert!(index_html.contains("foo.ts"));
assert!(index_html.contains("href='foo.ts.html'"));
assert!(index_html.contains("bar.ts"));
assert!(index_html.contains("href='bar.ts.html'"));
let foo_ts_html =
fs::read_to_string(tempdir.join("html").join("foo.ts.html")).unwrap();
assert!(foo_ts_html.contains("<h1>Coverage report for foo.ts</h1>"));
let bar_ts_html =
fs::read_to_string(tempdir.join("html").join("bar.ts.html")).unwrap();
assert!(bar_ts_html.contains("<h1>Coverage report for bar.ts</h1>"));
// Check <T> in source code is escaped to &lt;T&gt;
assert!(bar_ts_html.contains("&lt;T&gt;"));
let baz_index_html =
fs::read_to_string(tempdir.join("html").join("baz").join("index.html"))
.unwrap();
assert!(baz_index_html.contains("<h1>Coverage report for baz/</h1>"));
assert!(baz_index_html.contains("qux.ts"));
assert!(baz_index_html.contains("href='qux.ts.html'"));
assert!(baz_index_html.contains("quux.ts"));
assert!(baz_index_html.contains("href='quux.ts.html'"));
let baz_qux_ts_html =
fs::read_to_string(tempdir.join("html").join("baz").join("qux.ts.html"))
.unwrap();
assert!(baz_qux_ts_html.contains("<h1>Coverage report for baz/qux.ts</h1>"));
let baz_quux_ts_html =
fs::read_to_string(tempdir.join("html").join("baz").join("quux.ts.html"))
.unwrap();
assert!(baz_quux_ts_html.contains("<h1>Coverage report for baz/quux.ts</h1>"));
}
#[test]
fn test_summary_reporter() {
let context = TestContext::default();
let tempdir = context.temp_dir();
let tempdir = tempdir.path().join("cov");
let output = context
.new_command()
.args_vec(vec![
"test".to_string(),
"--quiet".to_string(),
format!("--coverage={}", tempdir),
"coverage/multisource".to_string(),
])
.run();
output.assert_exit_code(0);
output.skip_output_check();
let output = context
.new_command()
.args_vec(vec!["coverage".to_string(), format!("{}/", tempdir)])
.run();
output.assert_exit_code(0);
output.assert_matches_text(
"----------------------------------
File | Branch % | Line % |
----------------------------------
bar.ts | 0.0 | 57.1 |
baz/quux.ts | 0.0 | 28.6 |
baz/qux.ts | 100.0 | 100.0 |
foo.ts | 50.0 | 76.9 |
----------------------------------
All files | 40.0 | 61.0 |
----------------------------------
",
);
}
itest!(no_files_found {
args: "coverage doesnt_exist.js",
exit_code: 1,
output: "coverage/doesnt_exist.out",
});