Assert number of expected @deprecated

Author: gcatanese

modules/openapi-generator/src/test/java/org/openapitools/codegen/TestUtils.java

@@ -28,6 +28,8 @@
 import java.util.Collections;
 import java.util.List;
 import java.util.Map;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
 
 import static org.testng.Assert.*;
 
@@ -177,6 +179,21 @@ public static void assertFileContains(Path path, String... lines) {
         }
     }
 
+    /**
+     * Count occurrences of the given text
+     * @param content content of the file
+     * @param text text to find
+     * @return
+     */
+    public static int countOccurrences(String content, String text) {
+        Matcher matcher = Pattern.compile(text).matcher(content);
+        int count = 0;
+        while (matcher.find()) {
+            count++;
+        }
+        return count;
+    }
+
     public static String linearize(String target) {
         return target.replaceAll("\r?\n", "").replaceAll("\\s+", "\\s");
     }

modules/openapi-generator/src/test/java/org/openapitools/codegen/typescript/TypeScriptClientCodegenTest.java

@@ -15,11 +15,14 @@
 
 import java.io.File;
 import java.nio.file.Files;
+import java.nio.file.Path;
 import java.nio.file.Paths;
 import java.util.Collections;
 import java.util.List;
 import java.util.Map;
 
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
 @Test(groups = {TypeScriptGroups.TYPESCRIPT})
 public class TypeScriptClientCodegenTest {
     @Test
@@ -227,10 +230,15 @@ public void testDeprecatedOperation() throws Exception {
         files.forEach(File::deleteOnExit);
 
         // verify operation is deprecated
+        Path file = Paths.get(output + "/apis/DefaultApi.ts");
         TestUtils.assertFileContains(
-                Paths.get(output + "/apis/DefaultApi.ts"),
+                file,
                 "* @deprecated"
         );
+
+        String content = Files.readString(file);
+        assertEquals(1, TestUtils.countOccurrences(content, "@deprecated"));
+
     }
 
     @Test
@@ -249,9 +257,14 @@ public void testDeprecatedParameter() throws Exception {
         files.forEach(File::deleteOnExit);
 
         // verify parameter is deprecated parameter
+        Path file = Paths.get(output + "/apis/DefaultApi.ts");
         TestUtils.assertFileContains(
-                Paths.get(output + "/apis/DefaultApi.ts"),
+                file,
                 "* @param name name of pet  (@deprecated)"
         );
+
+        String content = Files.readString(file);
+        assertEquals(1, TestUtils.countOccurrences(content, "@deprecated"));
+
     }
 }