test: add tree-sitter snapshot tests for outline, textobjects, and injections (#257)

Improves tree-sitter query test coverage for the Java extension by
adding snapshot tests for outline, textobjects, and injections, similar
to those in the Ruby
extension https://github.com/zed-extensions/ruby/tree/main/tests

Author: fredyw

tests/java.rs

@@ -70,3 +70,42 @@ fn runnables_nested_test() {
         "languages/java/runnables.scm",
     );
 }
+
+// ============================================================================
+// Outline Tests
+// ============================================================================
+
+#[test]
+fn outline() {
+    support::assert_query_snapshot(
+        "outline",
+        "tests/languages/java/org/example/Outline.java",
+        "languages/java/outline.scm",
+    );
+}
+
+// ============================================================================
+// Textobjects Tests
+// ============================================================================
+
+#[test]
+fn textobjects() {
+    support::assert_query_snapshot(
+        "textobjects",
+        "tests/languages/java/org/example/TextObjects.java",
+        "languages/java/textobjects.scm",
+    );
+}
+
+// ============================================================================
+// Injections Tests
+// ============================================================================
+
+#[test]
+fn injections() {
+    support::assert_query_snapshot(
+        "injections",
+        "tests/languages/java/org/example/Injections.java",
+        "languages/java/injections.scm",
+    );
+}

tests/languages/java/org/example/Injections.java

@@ -0,0 +1,14 @@
+package org.example;
+
+// This is a line comment injection content.
+/* This is a block comment injection content. */
+/**
+ * This is a Javadoc comment matching doxygen-like rules.
+ */
+public class Injections {
+    public void test() {
+        System.out.printf("Printf format string: %s %d\n", "hello", 123);
+        String.format("Format string: %x", 255);
+        String formatted = "Formatted string literal: %s".formatted("example");
+    }
+}

tests/languages/java/org/example/Outline.java

@@ -0,0 +1,56 @@
+package org.example;
+
+public class Outline {
+    public static final String CONSTANT_FIELD = "value";
+    private String instanceField;
+
+    static {
+        // static initializer block
+        System.out.println("Static Init");
+    }
+
+    public Outline() {
+        this.instanceField = "default";
+    }
+
+    public Outline(String value) {
+        this.instanceField = value;
+    }
+
+    public String getInstanceField() {
+        return instanceField;
+    }
+
+    public static void staticMethod() {
+        // static method
+    }
+
+    private static class NestedClass {
+        private int nestedField;
+    }
+}
+
+interface ExampleInterface {
+    int INTERFACE_CONSTANT = 42;
+
+    void abstractMethod();
+
+    default void defaultMethod() {
+        // default method
+    }
+}
+
+record ExampleRecord(String first, int second) {
+    public ExampleRecord {
+        // compact constructor
+    }
+}
+
+enum ExampleEnum {
+    FIRST_CONSTANT,
+    SECOND_CONSTANT;
+}
+
+@interface ExampleAnnotation {
+    String value() default "default_val";
+}

tests/languages/java/org/example/TextObjects.java

@@ -0,0 +1,55 @@
+package org.example;
+
+// This is a block comment
+// with multiple lines for testing
+// comment.around
+public class TextObjects {
+    /*
+     * This is a block comment in the class
+     */
+    private String name;
+
+    public TextObjects(String name) {
+        this.name = name;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public void runLambda() {
+        Runnable r1 = () -> {
+            System.out.println("Block lambda body");
+        };
+
+        Runnable r2 = () -> System.out.println("Expression lambda body");
+    }
+}
+
+interface TestInterface {
+    void process();
+
+    default void log() {
+        System.out.println("Interface log");
+    }
+}
+
+enum TestEnum {
+    A, B, C;
+
+    public void print() {
+        System.out.println(this.name());
+    }
+}
+
+record TestRecord(int value) {
+    public TestRecord {
+        if (value < 0) {
+            throw new IllegalArgumentException();
+        }
+    }
+}
+
+@interface TestAnnotation {
+    String value();
+}

tests/languages/java/snapshots/injections.snap

@@ -0,0 +1,48 @@
+---
+source: tests/support/mod.rs
+expression: captures
+---
+- name: injection.content
+  line: 3
+  column: 1
+  text: // This is a line comment injection content.
+- name: injection.content
+  line: 4
+  column: 1
+  text: /* This is a block comment injection content. */
+- name: injection.content
+  line: 4
+  column: 1
+  text: /* This is a block comment injection content. */
+- name: injection.content
+  line: 5
+  column: 1
+  text: "/**\n * This is a Javadoc comment matching doxygen-like rules.\n */"
+- name: injection.content
+  line: 5
+  column: 1
+  text: "/**\n * This is a Javadoc comment matching doxygen-like rules.\n */"
+- name: _method
+  line: 10
+  column: 20
+  text: printf
+- name: injection.content
+  line: 10
+  column: 28
+  text: "Printf format string: %s %d"
+- name: _method
+  line: 11
+  column: 16
+  text: format
+- name: injection.content
+  line: 11
+  column: 24
+  text: "Format string: %x"
+- name: injection.content
+  line: 12
+  column: 29
+  text: "Formatted string literal: %s"
+- name: _method
+  line: 12
+  column: 59
+  text: formatted