bennycode/test-coverage

yarn cov:browser

Uses Karma to run the webpacked Jasmine specs in a browser environment (headless Chrome). It uses karma-coverage-istanbul-reporter to write a test coverage report into coverage/browser/html/index.html.

Output

• MyClass: 88.89%
• index.html
• coverage-final.json

yarn cov:node

Runs the Jasmine specs and uses Istanbul's cover command to report code coverage into coverage/node/cover/index.html.

Specifics

• Tests the compiled output (ES5 code)
• Coverage is made for the compiled output (ES5 code) WITHOUT remapping it to TypeScript

Coverage

• MyTest.js: 80%

Output

• index.html
• coverage.raw.json

yarn cov:node:remap

Uses remap-istanbul to convert Istanbul code coverage information (coverage.raw.json) from the Node.js test run into its original source positions (coverage-node.json) based on JavaScript Source Maps from the original TypeScript code.

Coverage

• /

Specifics

• Needs coverage.raw.json

Output

• coverage-node.json

yarn cov:node:remap:html

Same us above but with HTML output based on original source positions.

Coverage

• MyTest.ts: 75%

Specifics

• Gives HTML coverage of TS source code mapped from JS code coverage information (coverage.raw.json)

Output

• index.html