fix: adds CLI integration testing, where there was no integration testing before.

Author: addaleax

package.json

@@ -9,7 +9,7 @@
     "clean": "rimraf ./.nyc_output ./node_modules/.cache ./.self_coverage ./test/fixtures/.nyc_output ./test/fixtures/node_modules/.cache *covered.js ./lib/*covered.js",
     "build": "node ./build-tests",
     "instrument": "node ./build-self-coverage.js",
-    "run-tests": "tap --no-cov -b ./test/build/*.js ./test/src/source-map-cache.js",
+    "run-tests": "tap --no-cov -b ./test/build/*.js ./test/src/source-map-cache.js ./test/src/nyc-bin.js",
     "report": "istanbul report --include=./.self_coverage/*.json lcov text",
     "cover": "npm run clean && npm run build && npm run instrument && npm run run-tests && npm run report",
     "dev": "npm run clean && npm run build && npm run run-tests",
@@ -106,6 +106,7 @@
     "standard": "^6.0.8",
     "standard-version": "^1.1.0",
     "tap": "^5.7.1",
+    "which": "^1.2.4",
     "zero-fill": "^2.2.3"
   },
   "repository": {

test/fixtures/cli/fakebin/.gitignore

@@ -0,0 +1,2 @@
+node
+npm

test/fixtures/cli/fakebin/npm-template.js

@@ -0,0 +1,9 @@
+// shebang gets added before this line
+var which = require('which')
+var assert = require('assert')
+var foreground = require('foreground-child')
+
+// strip first PATH folder
+process.env.PATH = process.env.PATH.replace(/^.+?[:;]/, '')
+
+foreground('npm', process.argv.slice(2))

test/fixtures/cli/half-covered-failing.js

@@ -0,0 +1,9 @@
+var a = 0
+
+throw new Error
+
+if (a === 0) {
+  a++;
+  a--;
+  a++;
+}

test/fixtures/cli/half-covered.js

@@ -0,0 +1,9 @@
+var a = 0
+
+a++
+
+if (a === 0) {
+  a++;
+  a--;
+  a++;
+}

test/fixtures/cli/package.json

@@ -0,0 +1,3 @@
+{
+  "private": true
+}

test/fixtures/cli/run-npm-test-recursive/half-covered.js

@@ -0,0 +1,9 @@
+var a = 0
+
+a++
+
+if (a === 0) {
+  a++;
+  a--;
+  a++;
+}

test/fixtures/cli/run-npm-test-recursive/package.json

@@ -0,0 +1,8 @@
+{
+  "private": true,
+  "scripts": {
+    "test": "npm run test:deeper",
+    "test:deeper": "npm run test:even-deeper",
+    "test:even-deeper": "node ./half-covered.js"
+  }
+}

test/fixtures/cli/run-npm-test/half-covered.js

@@ -0,0 +1,9 @@
+var a = 0
+
+a++
+
+if (a === 0) {
+  a++;
+  a--;
+  a++;
+}

test/fixtures/cli/run-npm-test/package.json

@@ -0,0 +1,6 @@
+{
+  "private": true,
+  "scripts": {
+    "test": "node ./half-covered.js"
+  }
+}