Add ErrorLevel to Validators and results (#10099)

Fixes #9792

2 files changed, 70 insertions, 0 deletions

diff --git a/uitest/src/main/java/com/vaadin/tests/binder/BinderValidatorErrorLevel.java b/uitest/src/main/java/com/vaadin/tests/binder/BinderValidatorErrorLevel.java
new file mode 100644
index 0000000000..03a20bbe1f
--- /dev/null
+++ b/uitest/src/main/java/com/vaadin/tests/binder/BinderValidatorErrorLevel.java
@@ -0,0 +1,29 @@
+package com.vaadin.tests.binder;
+
+import com.vaadin.annotations.Widgetset;
+import com.vaadin.data.Binder;
+import com.vaadin.server.VaadinRequest;
+import com.vaadin.shared.ui.ErrorLevel;
+import com.vaadin.tests.components.AbstractTestUI;
+import com.vaadin.ui.TextField;
+
+@Widgetset("com.vaadin.DefaultWidgetSet")
+public class BinderValidatorErrorLevel extends AbstractTestUI {
+
+    @Override
+    protected void setup(VaadinRequest request) {
+        Binder<Object> binder = new Binder<>();
+
+        for (ErrorLevel l : ErrorLevel.values()) {
+            TextField field = new TextField(l.name());
+            binder.forField(field)
+                    .withValidator(s -> s.length() > 3,
+                            "ErrorLevel: " + l.name(), l)
+                    .bind(t -> "", (t, s) -> {
+                    });
+            addComponent(field);
+        }
+        binder.validate();
+    }
+
+}
diff --git a/uitest/src/test/java/com/vaadin/tests/binder/BinderValidatorErrorLevelTest.java b/uitest/src/test/java/com/vaadin/tests/binder/BinderValidatorErrorLevelTest.java
new file mode 100644
index 0000000000..4be9f9a49e
--- /dev/null
+++ b/uitest/src/test/java/com/vaadin/tests/binder/BinderValidatorErrorLevelTest.java
@@ -0,0 +1,41 @@
+package com.vaadin.tests.binder;
+
+import java.io.IOException;
+
+import org.junit.Assert;
+import org.junit.Test;
+
+import com.vaadin.shared.ui.ErrorLevel;
+import com.vaadin.testbench.By;
+import com.vaadin.testbench.elements.TextFieldElement;
+import com.vaadin.tests.tb3.SingleBrowserTest;
+
+public class BinderValidatorErrorLevelTest extends SingleBrowserTest {
+
+    @Test
+    public void testErrorLevelStyleNames() throws IOException {
+        openTestURL();
+
+        for (ErrorLevel l : ErrorLevel.values()) {
+            TextFieldElement textField = $(TextFieldElement.class)
+                    .caption(l.name()).first();
+
+            // Screenshot the whole slot
+            compareScreen(textField.findElement(By.xpath("..")),
+                    l.name().toLowerCase());
+
+            Assert.assertTrue("Error style for " + l.name() + " not present",
+                    textField.getAttribute("class").contains(
+                            "v-textfield-error-" + l.name().toLowerCase()));
+            textField.setValue("long enough text");
+            Assert.assertFalse("Error style for " + l.name() + " still present",
+                    textField.getAttribute("class").contains(
+                            "v-textfield-error-" + l.name().toLowerCase()));
+            textField.setValue("foo");
+            Assert.assertTrue(
+                    "Error style for " + l.name() + " should be present again.",
+                    textField.getAttribute("class").contains(
+                            "v-textfield-error-" + l.name().toLowerCase()));
+        }
+    }
+}