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2184cf5c07
This extracts the inspector session specific bits from CoverageCollector into a standalone struct dubbed `InspectorSesssion` which can be used as a general purpose session to communicate with the inspector on the same thread as an isolate/inspector pair lives on.
252 lines
6.1 KiB
Rust
252 lines
6.1 KiB
Rust
// Copyright 2018-2020 the Deno authors. All rights reserved. MIT license.
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use crate::colors;
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use crate::inspector::DenoInspector;
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use crate::inspector::InspectorSession;
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use deno_core::error::AnyError;
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use deno_core::serde_json;
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use deno_core::serde_json::json;
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use deno_core::url::Url;
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use serde::Deserialize;
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pub struct CoverageCollector {
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session: Box<InspectorSession>,
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}
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impl CoverageCollector {
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pub fn new(inspector_ptr: *mut DenoInspector) -> Self {
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let session = InspectorSession::new(inspector_ptr);
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Self { session }
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}
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pub async fn start_collecting(&mut self) -> Result<(), AnyError> {
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self
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.session
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.post_message("Debugger.enable".to_string(), None)
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.await?;
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self
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.session
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.post_message("Profiler.enable".to_string(), None)
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.await?;
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self
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.session
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.post_message(
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"Profiler.startPreciseCoverage".to_string(),
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Some(json!({"callCount": true, "detailed": true})),
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)
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.await?;
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Ok(())
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}
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pub async fn collect(&mut self) -> Result<Vec<Coverage>, AnyError> {
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let result = self
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.session
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.post_message("Profiler.takePreciseCoverage".to_string(), None)
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.await?;
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let take_coverage_result: TakePreciseCoverageResult =
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serde_json::from_value(result)?;
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let mut coverages: Vec<Coverage> = Vec::new();
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for script_coverage in take_coverage_result.result {
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let result = self
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.session
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.post_message(
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"Debugger.getScriptSource".to_string(),
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Some(json!({
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"scriptId": script_coverage.script_id,
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})),
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)
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.await?;
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let get_script_source_result: GetScriptSourceResult =
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serde_json::from_value(result)?;
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coverages.push(Coverage {
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script_coverage,
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script_source: get_script_source_result.script_source,
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})
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}
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Ok(coverages)
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}
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pub async fn stop_collecting(&mut self) -> Result<(), AnyError> {
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self
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.session
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.post_message("Profiler.stopPreciseCoverage".to_string(), None)
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.await?;
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self
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.session
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.post_message("Profiler.disable".to_string(), None)
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.await?;
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self
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.session
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.post_message("Debugger.disable".to_string(), None)
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.await?;
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Ok(())
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}
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}
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#[derive(Debug, Deserialize)]
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#[serde(rename_all = "camelCase")]
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pub struct CoverageRange {
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pub start_offset: usize,
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pub end_offset: usize,
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pub count: usize,
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}
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#[derive(Debug, Deserialize)]
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#[serde(rename_all = "camelCase")]
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pub struct FunctionCoverage {
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pub function_name: String,
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pub ranges: Vec<CoverageRange>,
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pub is_block_coverage: bool,
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}
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#[derive(Debug, Deserialize)]
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#[serde(rename_all = "camelCase")]
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pub struct ScriptCoverage {
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pub script_id: String,
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pub url: String,
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pub functions: Vec<FunctionCoverage>,
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}
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#[derive(Debug, Deserialize)]
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#[serde(rename_all = "camelCase")]
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pub struct Coverage {
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pub script_coverage: ScriptCoverage,
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pub script_source: String,
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}
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#[derive(Debug, Deserialize)]
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#[serde(rename_all = "camelCase")]
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struct TakePreciseCoverageResult {
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result: Vec<ScriptCoverage>,
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}
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#[derive(Debug, Deserialize)]
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#[serde(rename_all = "camelCase")]
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pub struct GetScriptSourceResult {
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pub script_source: String,
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pub bytecode: Option<String>,
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}
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pub struct PrettyCoverageReporter {
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quiet: bool,
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}
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// TODO(caspervonb) add support for lcov output (see geninfo(1) for format spec).
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impl PrettyCoverageReporter {
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pub fn new(quiet: bool) -> PrettyCoverageReporter {
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PrettyCoverageReporter { quiet }
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}
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pub fn visit_coverage(&mut self, coverage: &Coverage) {
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let lines = coverage.script_source.lines().collect::<Vec<_>>();
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let mut covered_lines: Vec<usize> = Vec::new();
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let mut uncovered_lines: Vec<usize> = Vec::new();
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let mut line_start_offset = 0;
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for (index, line) in lines.iter().enumerate() {
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let line_end_offset = line_start_offset + line.len();
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let mut count = 0;
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for function in &coverage.script_coverage.functions {
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for range in &function.ranges {
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if range.start_offset <= line_start_offset
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&& range.end_offset >= line_end_offset
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{
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if range.count == 0 {
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count = 0;
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break;
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}
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count += range.count;
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}
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}
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line_start_offset = line_end_offset;
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}
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if count > 0 {
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covered_lines.push(index);
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} else {
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uncovered_lines.push(index);
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}
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}
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if !self.quiet {
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print!("cover {} ... ", coverage.script_coverage.url);
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let line_coverage_ratio = covered_lines.len() as f32 / lines.len() as f32;
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let line_coverage = format!(
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"{:.3}% ({}/{})",
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line_coverage_ratio * 100.0,
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covered_lines.len(),
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lines.len()
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);
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if line_coverage_ratio >= 0.9 {
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println!("{}", colors::green(&line_coverage));
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} else if line_coverage_ratio >= 0.75 {
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println!("{}", colors::yellow(&line_coverage));
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} else {
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println!("{}", colors::red(&line_coverage));
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}
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for line_index in uncovered_lines {
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println!(
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"{:width$}{} {}",
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line_index + 1,
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colors::gray(" |"),
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colors::red(&lines[line_index]),
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width = 4
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);
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}
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}
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}
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}
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pub fn filter_script_coverages(
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coverages: Vec<Coverage>,
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test_file_url: Url,
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test_modules: Vec<Url>,
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) -> Vec<Coverage> {
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coverages
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.into_iter()
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.filter(|e| {
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if let Ok(url) = Url::parse(&e.script_coverage.url) {
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if url.path().ends_with("__anonymous__") {
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return false;
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}
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if url == test_file_url {
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return false;
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}
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for test_module_url in &test_modules {
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if &url == test_module_url {
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return false;
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}
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}
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if let Ok(path) = url.to_file_path() {
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for test_module_url in &test_modules {
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if let Ok(test_module_path) = test_module_url.to_file_path() {
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if path.starts_with(test_module_path.parent().unwrap()) {
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return true;
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}
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}
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}
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}
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}
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false
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})
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.collect::<Vec<Coverage>>()
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}
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