feat: add focused empty and regex assertions (#136)

docs-site/docs/changelog.md

@@ -11,6 +11,8 @@ All notable changes to Selenium Boot are documented here.
 
 ## [Unreleased]
 
+- **Richer auto-retrying locator assertions** — `LocatorAssert` adds `isFocused()` and `isEmpty()`, plus `Pattern` overloads for `hasText`, `containsText`, and `hasValue`. Regex failures report the locator and last observed value, and stale elements are re-resolved until `timeouts.explicit`. (#136)
+
 - **Failure grouping** — the report's Failures tab now opens with a "N tests, same cause" panel: failed tests are grouped by a signature of category, exception type, normalised message (ids, numbers and quoted values stripped) and top application stack frame. The flat per-class list is unchanged below it. With `ai.failureAnalysis` on, one Claude call is made per group; the other tests in the group reuse its analysis. The metrics JSON gains `failureSignature`. (#140)
 
 - **`Locator` form actions: `clear()`, `check()`, `uncheck()`, `isChecked()`, `selectOption(text)`, `selectOptionByValue(value)`, `inputValue()`** — form controls can now be manipulated and inspected directly on `Locator` without falling back to `BasePage` helpers or raw `WebElement`s. `check()` and `uncheck()` are idempotent (no click if already in the target state), `isChecked()` queries checked state without waiting, and terminal actions (`clear`, `check`, `uncheck`, `selectOption`, `selectOptionByValue`, `inputValue`) auto-wait, re-resolving from scratch on every poll to survive stale or late-appearing elements. (#133)

docs-site/docs/guides/semantic-locators.md

@@ -24,6 +24,8 @@ Every semantic locator returns the same chainable, **auto-waiting** `Locator`
 used by the `$()` API — no `Thread.sleep`, no explicit waits. They're available
 on both `BaseTest` and `BasePage`. Narrow multiple matches using `.first()`, `.last()`, or `.nth(index)` (e.g. `getByRole(Role.LISTITEM).first().click()`).
 
+Assertions can retry focus and empty-state checks, and accept regular expressions for text and values: `assertThat(getByLabel("Email")).isFocused()`, `isEmpty()`, or `hasValue(Pattern.compile("user-\\d+"))`.
+
 Auto-waiting covers the element *existing* as well as being visible: an action such as `click()` or
 `type()` keeps looking for the element until `timeouts.explicit` elapses, and looks it up afresh each
 time, so a page that re-renders it mid-action doesn't cause a stale-element error. If it never

src/main/java/com/seleniumboot/assertion/LocatorAssert.java

@@ -5,6 +5,7 @@
 import com.seleniumboot.internal.SeleniumBootContext;
 import com.seleniumboot.locator.Locator;
 import org.openqa.selenium.By;
+import org.openqa.selenium.StaleElementReferenceException;
 import org.openqa.selenium.WebDriver;
 import org.openqa.selenium.WebElement;
 import org.openqa.selenium.support.ui.ExpectedCondition;
@@ -14,6 +15,9 @@
 
 import java.time.Duration;
 import java.util.List;
+import java.util.concurrent.atomic.AtomicReference;
+import java.util.function.Supplier;
+import java.util.regex.Pattern;
 
 /**
  * Fluent, auto-retrying assertion for a specific locator.
@@ -96,6 +100,47 @@ public LocatorAssert isChecked() {
         return this;
     }
 
+    /** Asserts the element owns browser focus — retries until timeout. */
+    public LocatorAssert isFocused() {
+        AtomicReference<String> actual = new AtomicReference<>("no matching element");
+        poll(driver -> {
+            try {
+                List<WebElement> els = driver.findElements(by);
+                if (els.isEmpty()) return null;
+                WebElement focused = driver.switchTo().activeElement();
+                actual.set(describeElement(focused));
+                return els.get(0).equals(focused) ? true : null;
+            } catch (StaleElementReferenceException e) {
+                actual.set("stale element");
+                return null;
+            }
+        }, "Expected element to be focused: " + description, actual::get);
+        return this;
+    }
+
+    /**
+     * Asserts the element is empty — inputs use their {@code value}; other
+     * elements use visible text. Retries until timeout.
+     */
+    public LocatorAssert isEmpty() {
+        AtomicReference<String> actual = new AtomicReference<>("no matching element");
+        poll(driver -> {
+            try {
+                List<WebElement> els = driver.findElements(by);
+                if (els.isEmpty()) return null;
+                WebElement el = els.get(0);
+                String tag = el.getTagName();
+                String content = isFormValueElement(tag) ? el.getAttribute("value") : el.getText();
+                actual.set(content == null ? "null" : content);
+                return content == null || content.isEmpty() ? true : null;
+            } catch (StaleElementReferenceException e) {
+                actual.set("stale element");
+                return null;
+            }
+        }, "Expected element to be empty: " + description, actual::get);
+        return this;
+    }
+
     // ------------------------------------------------------------------
     // Text
     // ------------------------------------------------------------------
@@ -107,13 +152,23 @@ public LocatorAssert hasText(String expected) {
         return this;
     }
 
+    /** Asserts the element's visible text fully matches {@code pattern} — retries until timeout. */
+    public LocatorAssert hasText(Pattern pattern) {
+        return matches(pattern, false, false);
+    }
+
     /** Asserts the element's visible text contains {@code fragment} — retries until timeout. */
     public LocatorAssert containsText(String fragment) {
         poll(ExpectedConditions.textToBePresentInElementLocated(by, fragment),
                 "Expected text to contain [" + fragment + "] for: " + description);
         return this;
     }
 
+    /** Asserts some part of the element's visible text matches {@code pattern} — retries until timeout. */
+    public LocatorAssert containsText(Pattern pattern) {
+        return matches(pattern, true, false);
+    }
+
     // ------------------------------------------------------------------
     // Attributes & CSS
     // ------------------------------------------------------------------
@@ -125,6 +180,11 @@ public LocatorAssert hasValue(String expected) {
         return this;
     }
 
+    /** Asserts the element's {@code value} fully matches {@code pattern} — retries until timeout. */
+    public LocatorAssert hasValue(Pattern pattern) {
+        return matches(pattern, false, true);
+    }
+
     /** Asserts the element has a specific attribute value — retries until timeout. */
     public LocatorAssert hasAttribute(String attribute, String expected) {
         poll(ExpectedConditions.attributeToBe(by, attribute, expected),
@@ -163,12 +223,58 @@ public LocatorAssert count(int expected) {
     // ------------------------------------------------------------------
 
     private <T> void poll(ExpectedCondition<T> condition, String failMessage) {
+        poll(condition, failMessage, null);
+    }
+
+    private <T> void poll(ExpectedCondition<T> condition, String failMessage,
+                          Supplier<String> actualValue) {
         int timeout = SeleniumBootContext.getConfig().getTimeouts().getExplicit();
         WebDriver driver = DriverManager.getDriver();
         try {
             new WebDriverWait(driver, Duration.ofSeconds(timeout)).until(condition);
         } catch (Exception e) {
-            Assert.fail(failMessage + " (timeout: " + timeout + "s)");
+            String actual = actualValue == null ? "" : "; actual: [" + actualValue.get() + "]";
+            Assert.fail(failMessage + actual + " (timeout: " + timeout + "s)");
+        }
+    }
+
+    private LocatorAssert matches(Pattern pattern, boolean find, boolean valueAttribute) {
+        AtomicReference<String> actual = new AtomicReference<>("no matching element");
+        String subject = valueAttribute ? "value" : "text";
+        poll(driver -> {
+            try {
+                List<WebElement> els = driver.findElements(by);
+                if (els.isEmpty()) return null;
+                String candidate = valueAttribute
+                        ? els.get(0).getAttribute("value")
+                        : els.get(0).getText();
+                actual.set(candidate == null ? "null" : candidate);
+                if (candidate == null) return null;
+                var matcher = pattern.matcher(candidate);
+                return (find ? matcher.find() : matcher.matches()) ? true : null;
+            } catch (StaleElementReferenceException e) {
+                actual.set("stale element");
+                return null;
+            }
+        }, "Expected " + subject + " to " + (find ? "contain a match for " : "match ")
+                + "[" + pattern + "] for: " + description, actual::get);
+        return this;
+    }
+
+    private static boolean isFormValueElement(String tag) {
+        return "input".equalsIgnoreCase(tag)
+                || "textarea".equalsIgnoreCase(tag)
+                || "select".equalsIgnoreCase(tag);
+    }
+
+    private static String describeElement(WebElement element) {
+        if (element == null) return "none";
+        try {
+            String tag = element.getTagName();
+            String id = element.getAttribute("id");
+            return id == null || id.isEmpty() ? "<" + tag + ">" : "<" + tag + " id=\"" + id + "\">";
+        } catch (StaleElementReferenceException e) {
+            return "stale element";
         }
     }
 }

src/test/java/com/seleniumboot/unit/LocatorAssertBehaviorTest.java

@@ -0,0 +1,109 @@
+package com.seleniumboot.unit;
+
+import com.seleniumboot.assertion.SeleniumAssert;
+import com.seleniumboot.config.SeleniumBootConfig;
+import com.seleniumboot.driver.DriverManager;
+import com.seleniumboot.internal.SeleniumBootContext;
+import org.mockito.MockedStatic;
+import org.openqa.selenium.By;
+import org.openqa.selenium.StaleElementReferenceException;
+import org.openqa.selenium.WebDriver;
+import org.openqa.selenium.WebElement;
+import org.testng.annotations.AfterMethod;
+import org.testng.annotations.BeforeMethod;
+import org.testng.annotations.Test;
+
+import java.util.List;
+import java.util.regex.Pattern;
+
+import static org.mockito.Mockito.*;
+import static org.testng.Assert.expectThrows;
+import static org.testng.Assert.assertTrue;
+
+public class LocatorAssertBehaviorTest {
+
+    private WebDriver driver;
+    private MockedStatic<DriverManager> driverManagerMock;
+    private MockedStatic<SeleniumBootContext> contextMock;
+
+    @BeforeMethod
+    public void setup() {
+        driver = mock(WebDriver.class);
+        driverManagerMock = mockStatic(DriverManager.class);
+        driverManagerMock.when(DriverManager::getDriver).thenReturn(driver);
+
+        SeleniumBootConfig.Timeouts timeouts = new SeleniumBootConfig.Timeouts();
+        timeouts.setExplicit(1);
+        SeleniumBootConfig config = new SeleniumBootConfig();
+        config.setTimeouts(timeouts);
+        contextMock = mockStatic(SeleniumBootContext.class);
+        contextMock.when(SeleniumBootContext::getConfig).thenReturn(config);
+    }
+
+    @AfterMethod
+    public void teardown() {
+        driverManagerMock.close();
+        contextMock.close();
+    }
+
+    @Test
+    public void focusedAndEmptyAssertionsUseLiveElementState() {
+        By focusedBy = By.id("search");
+        WebElement focused = mock(WebElement.class);
+        WebDriver.TargetLocator target = mock(WebDriver.TargetLocator.class);
+        when(driver.findElements(focusedBy)).thenReturn(List.of(focused));
+        when(driver.switchTo()).thenReturn(target);
+        when(target.activeElement()).thenReturn(focused);
+
+        SeleniumAssert.assertThat(focusedBy).isFocused();
+
+        By emptyBy = By.id("email");
+        WebElement emptyInput = mock(WebElement.class);
+        when(driver.findElements(emptyBy)).thenReturn(List.of(emptyInput));
+        when(emptyInput.getTagName()).thenReturn("input");
+        when(emptyInput.getAttribute("value")).thenReturn("");
+
+        SeleniumAssert.assertThat(emptyBy).isEmpty();
+    }
+
+    @Test
+    public void regexAssertionsSupportFullAndPartialMatches() {
+        By by = By.id("status");
+        WebElement element = mock(WebElement.class);
+        when(driver.findElements(by)).thenReturn(List.of(element));
+        when(element.getText()).thenReturn("Order 412 is ready");
+        when(element.getAttribute("value")).thenReturn("user-42");
+
+        SeleniumAssert.assertThat(by).hasText(Pattern.compile("Order \\d+ is ready"));
+        SeleniumAssert.assertThat(by).containsText(Pattern.compile("\\d+"));
+        SeleniumAssert.assertThat(by).hasValue(Pattern.compile("user-\\d+"));
+    }
+
+    @Test
+    public void regexAssertionReResolvesAfterStaleElement() {
+        By by = By.id("status");
+        WebElement stale = mock(WebElement.class);
+        WebElement fresh = mock(WebElement.class);
+        when(stale.getText()).thenThrow(new StaleElementReferenceException("re-rendered"));
+        when(fresh.getText()).thenReturn("ready");
+        when(driver.findElements(by)).thenReturn(List.of(stale)).thenReturn(List.of(fresh));
+
+        SeleniumAssert.assertThat(by).hasText(Pattern.compile("ready"));
+
+        verify(driver, atLeast(2)).findElements(by);
+    }
+
+    @Test
+    public void regexFailureNamesLocatorAndActualValue() {
+        By by = By.id("status");
+        WebElement element = mock(WebElement.class);
+        when(driver.findElements(by)).thenReturn(List.of(element));
+        when(element.getText()).thenReturn("pending");
+
+        AssertionError error = expectThrows(AssertionError.class,
+                () -> SeleniumAssert.assertThat(by).hasText(Pattern.compile("ready")));
+
+        assertTrue(error.getMessage().contains("By.id: status"));
+        assertTrue(error.getMessage().contains("actual: [pending]"));
+    }
+}