TP1 exercice 3 fini

src/main/java/AsciiStringFilter.java

-public class AsciiStringFilter {
+public class AsciiStringFilter implements StringFilter{
 
     public AsciiStringFilter() {}
 

src/main/java/CompositeStringFilter.java

+public class CompositeStringFilter implements StringFilter{
+
+    private StringFilter[] filters;
+
+    public CompositeStringFilter(StringFilter[] filters){
+        this.filters = filters;
+    }
+    public String filter(String string) {
+        for (StringFilter filter: filters) {
+            string = filter.filter(string);
+        }
+        return string;
+    }
+}

src/main/java/MultipleStringFilter.java

+public class MultipleStringFilter {
+
+    public static String[] filter(String[] strings, StringFilter filter){
+        for (int i = 0; i < strings.length; i++) {
+            strings[i] = filter.filter(strings[i]);
+        }
+        return strings;
+    }
+}

src/main/java/PostfixStringFilter.java

-public class PostfixStringFilter {
+public class PostfixStringFilter implements StringFilter {
 
     private final int number;
 

src/main/java/StringFilter.java

@@ -2,5 +2,4 @@ public interface StringFilter {
 
     public String filter(String string);
 
-    public String[] filter(String[] strings, StringFilter filter);
 }

src/test/java/StringFilterTest.java

+import org.junit.jupiter.api.Disabled;
+import org.junit.jupiter.api.Test;
+
+
+import static org.assertj.core.api.Assertions.*;
+public class StringFilterTest {
+
+    @Test
+    void testUpperCaseStringFilter() {
+        StringFilter upper = new UpperCaseStringFilter();
+        assertThat(upper.filter("Hello world")).isEqualTo("HELLO WORLD");
+    }
+
+    @Test
+    void testLowerCaseStringFilter() {
+        StringFilter lower = new LowerCaseStringFilter();
+        assertThat(lower.filter("Hello world")).isEqualTo("hello world");
+    }
+
+    @Test
+    void testPrefixStringFilter() {
+        StringFilter prefix2 = new PrefixStringFilter(2);
+        StringFilter prefix5 = new PrefixStringFilter(5);
+        assertThat(prefix2.filter("Hello world")).isEqualTo("He");
+        assertThat(prefix5.filter("Hello world")).isEqualTo("Hello");
+    }
+
+    @Test
+    void testPostfixStringFilter() {
+        StringFilter postfix8 = new PostfixStringFilter(8);
+        StringFilter postfix5 = new PostfixStringFilter(5);
+        assertThat(postfix8.filter("Hello world")).isEqualTo("lo world");
+        assertThat(postfix5.filter("Hello world")).isEqualTo("world");
+    }
+
+    @Test
+    void testAsciiStringFilter() {
+        StringFilter ascii = new AsciiStringFilter();
+        assertThat(ascii.filter("@ ¤ ~ µ ! € /")).isEqualTo("@  ~  !  /");
+    }
+
+    @Test
+    void testMultipleStringFilter() {
+        StringFilter lower = new LowerCaseStringFilter();
+        StringFilter upper = new UpperCaseStringFilter();
+        StringFilter prefix2 = new PrefixStringFilter(2);
+        StringFilter postfix1 = new PostfixStringFilter(1);
+        StringFilter ascii = new AsciiStringFilter();
+        String [] strings = { "Hello", "World", "test", "}+*€@" };
+        assertThat(MultipleStringFilter.filter(strings, ascii)).isEqualTo(new String[]{"Hello", "World", "test", "}+*@"});
+        assertThat(MultipleStringFilter.filter(strings, prefix2)).isEqualTo(new String[]{"He", "Wo", "te", "}+"});
+        assertThat(MultipleStringFilter.filter(strings, upper)).isEqualTo(new String[]{"HE", "WO", "TE", "}+"});
+        assertThat(MultipleStringFilter.filter(strings, postfix1)).isEqualTo(new String[]{"E", "O", "E", "+"});
+        assertThat(MultipleStringFilter.filter(strings, lower)).isEqualTo(new String[]{"e", "o", "e", "+"});
+    }
+
+    @Test
+    void testCompositeStringFilter() {
+        StringFilter lower = new LowerCaseStringFilter();
+        StringFilter prefix5 = new PrefixStringFilter(5);
+        StringFilter ascii = new AsciiStringFilter();
+        StringFilter composite = new CompositeStringFilter(new StringFilter[]{lower, prefix5, ascii});
+        assertThat(composite.filter("Hello€ World")).isEqualTo("hello");
+    }
+}