feat: V1.1 - 责任人区分

src/test/java/com/codechecker/cache/git/GitDiffScannerAuthorFilterTest.java

@@ -0,0 +1,66 @@
+package com.codechecker.cache.git;
+
+import org.junit.jupiter.api.Test;
+
+import java.util.Arrays;
+import java.util.Collections;
+import java.util.Set;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertTrue;
+
+/**
+ * {@link GitDiffScanner#parseAuthorTouchedJavaFiles} 责任人过滤解析单测。
+ */
+class GitDiffScannerAuthorFilterTest {
+
+    @Test
+    void takesOnlyMatchingAuthorJavaFiles() {
+        Set<String> files = GitDiffScanner.parseAuthorTouchedJavaFiles(Arrays.asList(
+                "COMMIT Alice <alice@example.com>",
+                "a/src/main/java/A.java",
+                "a/src/main/java/Shared.java",
+                "COMMIT Bob <bob@example.com>",
+                "b/src/main/java/B.java",
+                "a/src/main/java/Shared.java"
+        ), "alice");
+
+        assertEquals(Set.of(
+                "a/src/main/java/A.java",
+                "a/src/main/java/Shared.java"
+        ), files);
+    }
+
+    @Test
+    void matchesActorAgainstEmailCaseInsensitive() {
+        Set<String> files = GitDiffScanner.parseAuthorTouchedJavaFiles(Arrays.asList(
+                "COMMIT 张三 <ZhangSan@corp.com>",
+                "pkg/Foo.java",
+                "COMMIT 李四 <lisi@corp.com>",
+                "pkg/Bar.java"
+        ), "zhangsan");
+
+        assertEquals(Set.of("pkg/Foo.java"), files);
+    }
+
+    @Test
+    void skipsNonJavaAndEmptyLines() {
+        Set<String> files = GitDiffScanner.parseAuthorTouchedJavaFiles(Arrays.asList(
+                "COMMIT alice <a@x.com>",
+                "",
+                "README.md",
+                "src/Main.java",
+                "COMMIT other <o@x.com>",
+                "src/Other.java"
+        ), "alice");
+
+        assertEquals(Set.of("src/Main.java"), files);
+    }
+
+    @Test
+    void emptyFilterOrLinesYieldEmpty() {
+        assertTrue(GitDiffScanner.parseAuthorTouchedJavaFiles(Collections.emptyList(), "alice").isEmpty());
+        assertTrue(GitDiffScanner.parseAuthorTouchedJavaFiles(
+                Collections.singletonList("COMMIT alice <a@x.com>"), "").isEmpty());
+    }
+}