Improve support for running tests on windows

Signed-off-by: szarpul@users.noreply.github.com
Signed-off-by: Mark Pollack <mark.pollack@broadcom.com>

spring-ai-commons/src/test/java/org/springframework/ai/document/ContentFormatterTests.java

@@ -25,14 +25,14 @@ import static org.assertj.core.api.Assertions.assertThat;
 /**
  * @author Christian Tzolov
  */
-public class ContentFormatterTests {
+class ContentFormatterTests {
 
 	Document document = new Document("The World is Big and Salvation Lurks Around the Corner",
 			Map.of("embedKey1", "value1", "embedKey2", "value2", "embedKey3", "value3", "llmKey2", "value4"));
 
 	@Test
-	public void noExplicitlySetFormatter() {
-		assertThat(this.document.getText()).isEqualTo("""
+	void noExplicitlySetFormatter() {
+		TextBlockAssertion.assertThat(this.document.getText()).isEqualTo("""
 				The World is Big and Salvation Lurks Around the Corner""");
 
 		assertThat(this.document.getFormattedContent()).isEqualTo(this.document.getFormattedContent(MetadataMode.ALL));
@@ -42,17 +42,18 @@ public class ContentFormatterTests {
 	}
 
 	@Test
-	public void defaultConfigTextFormatter() {
+	void defaultConfigTextFormatter() {
 
 		DefaultContentFormatter defaultConfigFormatter = DefaultContentFormatter.defaultConfig();
 
-		assertThat(this.document.getFormattedContent(defaultConfigFormatter, MetadataMode.ALL)).isEqualTo("""
-				llmKey2: value4
-				embedKey1: value1
-				embedKey2: value2
-				embedKey3: value3
+		TextBlockAssertion.assertThat(this.document.getFormattedContent(defaultConfigFormatter, MetadataMode.ALL))
+			.isEqualTo("""
+					llmKey2: value4
+					embedKey1: value1
+					embedKey2: value2
+					embedKey3: value3
 
-				The World is Big and Salvation Lurks Around the Corner""");
+					The World is Big and Salvation Lurks Around the Corner""");
 
 		assertThat(this.document.getFormattedContent(defaultConfigFormatter, MetadataMode.ALL))
 			.isEqualTo(this.document.getFormattedContent());

spring-ai-commons/src/test/java/org/springframework/ai/document/TextBlockAssertion.java

@@ -0,0 +1,54 @@
+/*
+ * Copyright 2024-2025 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.springframework.ai.document;
+
+import java.util.Arrays;
+
+import org.assertj.core.api.AbstractCharSequenceAssert;
+import org.assertj.core.api.Assertions;
+
+public class TextBlockAssertion extends AbstractCharSequenceAssert<TextBlockAssertion, String> {
+
+	protected TextBlockAssertion(String string) {
+		super(string, TextBlockAssertion.class);
+	}
+
+	public static TextBlockAssertion assertThat(String actual) {
+		return new TextBlockAssertion(actual);
+	}
+
+	@Override
+	public TextBlockAssertion isEqualTo(Object expected) {
+		Assertions.assertThat(normalizedEOL(actual)).isEqualTo(normalizedEOL((String) expected));
+		return this;
+	}
+
+	@Override
+	public TextBlockAssertion contains(CharSequence... values) {
+		Assertions.assertThat(normalizedEOL(actual)).contains(normalizedEOL(values));
+		return this;
+	}
+
+	private String normalizedEOL(CharSequence... values) {
+		return Arrays.stream(values).map(CharSequence::toString).map(this::normalizedEOL).reduce("", (a, b) -> a + b);
+	}
+
+	private String normalizedEOL(String line) {
+		return line.replaceAll("\r\n|\r|\n", System.lineSeparator());
+	}
+
+}