Add canExecute assertion for File

Like `isExecutable` for `Path`.

Author: Goooler

assertk/src/jvmMain/kotlin/assertk/assertions/file.kt

@@ -64,6 +64,12 @@ fun Assert<File>.isFile() = given { actual ->
     expected("to be a file")
 }
 
+/** Assert that the file is an executable. */
+fun Assert<File>.canExecute() = given { actual ->
+    if (actual.canExecute()) return
+    expected("to be executable")
+}
+
 /**
  * Asserts the file is hidden.
  * @see [isNotHidden]

assertk/src/jvmTest/kotlin/test/assertk/assertions/FileTest.kt

@@ -58,6 +58,22 @@ class FileTest {
     }
     //endregion
 
+    //region canExecute
+    @Test
+    fun canExecute_value_regular_file_passes() {
+        file.setExecutable(true)
+        assertThat(file).canExecute()
+    }
+
+    @Test
+    fun canExecute_value_directory_fails() {
+        val error = assertFailsWith<AssertionError> {
+            assertThat(file).canExecute()
+        }
+        assertEquals("expected to be executable", error.message)
+    }
+    //endregion
+
     //region isNotHidden
     @Test
     fun isNotHidden_value_regular_file_passes() {