feat(shell): separate command for stubbing shell

Author: bahmutov

__snapshots__/stub-spawn-once-spec.js.snap-shot

@@ -20,3 +20,14 @@ exports['mocks command with exit code, stdout and stderr 1'] = {
   "timedOut": false
 }
 
+exports['mocks echo hello 1'] = {
+  "stdout": "foo",
+  "stderr": "bar",
+  "code": 0,
+  "failed": false,
+  "killed": false,
+  "signal": null,
+  "cmd": "/bin/sh -c echo \"hello\"",
+  "timedOut": false
+}
+

src/index.js

@@ -96,4 +96,15 @@ function stubSpawnOnce (command, exitCode, stdout, stderr) {
   }
 }
 
-module.exports = { stubSpawnOnce }
+// only provide the shell command like 'echo "hello"'
+function stubSpawnShellOnce (command, exitCode, stdout, stderr) {
+  la(is.unemptyString(command), 'missing shell command to stub', command)
+  const fullCommand = `/bin/sh -c ${command}`
+  commands[fullCommand] = {
+    exitCode,
+    stdout,
+    stderr
+  }
+}
+
+module.exports = { stubSpawnOnce, stubSpawnShellOnce }

src/stub-spawn-once-spec.js

@@ -14,14 +14,30 @@ describe('stub-spawn-once', () => {
     return snapshot(execa.shell('echo "hello"'))
   })
 
-  it('is a function', () => {
-    la(is.fn(stubSpawnOnce))
+  describe('stubSpawnOnce', () => {
+    it('is a function', () => {
+      la(is.fn(stubSpawnOnce))
+    })
+
+    it('mocks command with exit code, stdout and stderr', () => {
+      const cmd = 'echo "hello"'
+      // this is command for execa.shell
+      stubSpawnOnce(`/bin/sh -c ${cmd}`, 0, 'foo', 'bar')
+      return snapshot(execa.shell(cmd))
+    })
   })
 
-  it('mocks command with exit code, stdout and stderr', () => {
-    const cmd = 'echo "hello"'
-    // this is command for execa.shell
-    stubSpawnOnce(`/bin/sh -c ${cmd}`, 0, 'foo', 'bar')
-    return snapshot(execa.shell(cmd))
+  describe('stubSpawnShellOnce', () => {
+    const { stubSpawnShellOnce } = require('.')
+
+    it('is a function', () => {
+      la(is.fn(stubSpawnShellOnce))
+    })
+
+    it('mocks echo hello', () => {
+      const cmd = 'echo "hello"'
+      stubSpawnShellOnce(cmd, 0, 'foo', 'bar')
+      return snapshot(execa.shell(cmd))
+    })
   })
 })