api docs and fix timeout

docs/api.md

@@ -44,6 +44,7 @@
 - [class: Keyboard](#class-keyboard)
   * [keyboard.press(key)](#keyboardpresskey)
   * [keyboard.release(key)](#keyboardreleasekey)
+  * [keyboard.sendCharacter(char)](#keyboardsendcharacterchar)
   * [keyboard.type(text)](#keyboardtypetext)
 - [class: Dialog](#class-dialog)
   * [dialog.accept([promptText])](#dialogacceptprompttext)
@@ -387,16 +388,28 @@ Shortcut for [page.mainFrame().waitFor(selector)](#framewaitforselector).
 - `key` <[string]> Name of key to press, such as `ArrowLeft`. See [KeyboardEvent.key](https://www.w3.org/TR/uievents-key/)
 - returns <[Promise]>
 
+Dispatches a `keydown` event.
 This does not send input events. To type characters into a text field, use [keyboard.type(text)](#keyboardtypetext)
 
 #### keyboard.release(key)
-- `key` <[string]> Name of key to press, such as `ArrowLeft`. See [KeyboardEvent.key](https://www.w3.org/TR/uievents-key/)
+- `key` <[string]> Name of key to release, such as `ArrowLeft`. See [KeyboardEvent.key](https://www.w3.org/TR/uievents-key/)
 - returns <[Promise]>
 
+Dispatches a `keyup` event.
+
+#### keyboard.sendCharacter(char)
+- `char` <[string]> Character to send into the page.
+- returns <[Promise]>
+
+Dispatches a `keypress` and `input` event. This does not send a `keydown` or `keyup` event.
+
 #### keyboard.type(text)
 - `text` <[string]> Text to type into the page
 - returns <[Promise]>
 
+Sends a `keydown`, `keypress`/`input`, and `keyup` event for each character in the text.
+This is the suggested way to type printable characters.
+
 ### class: Dialog
 #### dialog.accept([promptText])
 - `promptText` <[string]> A text to enter in prompt. Does not cause any effects if the dialog's `type` is not prompt.

lib/Keyboard.js

@@ -173,10 +173,15 @@ class Keyboard {
     for (let i = 0; i < text.length; i++) {
       let char = text.charAt(i);
       let promise = this._client.send('Runtime.evaluate', { expression, returnByValue: true, awaitPromise: true});
+      // make sure the first evaluate was run
+      await this._client.send('Runtime.evaluate', { expression: '1', returnByValue: true});
       this.press(char);
       if (!(await promise).result.value)
         this.sendCharacter(char);
-      await this.release(char);
+      if (i < text.length - 1)
+        this.release(char);
+      else
+        await this.release(char);
     }
 
     /**

test/test.js

@@ -680,6 +680,8 @@ describe('Puppeteer', function() {
       expect(await page.evaluate(() => getResult())).toBe('Keyup: Shift 16 0');
     }));
     it('should report altKey', SX(async function(){
+      await page.navigate(PREFIX + '/input/keyboard.html');
+      let keyboard = page.keyboard();
       await keyboard.press('Alt');
       expect(await page.evaluate(() => getResult())).toBe('Keydown: Alt 18 1');
       await keyboard.press('a');
@@ -690,6 +692,8 @@ describe('Puppeteer', function() {
       expect(await page.evaluate(() => getResult())).toBe('Keyup: Alt 18 0');
     }));
     it('should report multiple modifiers', SX(async function(){
+      await page.navigate(PREFIX + '/input/keyboard.html');
+      let keyboard = page.keyboard();
       await keyboard.press('Control');
       expect(await page.evaluate(() => getResult())).toBe('Keydown: Control 17 2');
       await keyboard.press('Meta');