test: add patch test

Author: nooneknowspeter

src/cli/test_patch.zig

@@ -0,0 +1,42 @@
+const STD = @import("std");
+const PATCH = @import("patch.zig");
+
+const TEST_PATCHES_DIR = "tests/patches";
+
+const ORIGINAL_FILES_DIR = TEST_PATCHES_DIR ++ "/" ++ "original";
+
+const ORIGINAL_FILE_PATH = ORIGINAL_FILES_DIR ++ "/" ++ "original.txt";
+
+const MODIFIED_FILES_DIR = TEST_PATCHES_DIR ++ "/" ++ "modified";
+
+const MODIFIED_FILE_PATH = MODIFIED_FILES_DIR ++ "/" ++ "modified.txt";
+
+fn initPatchTest() !void {
+    STD.fs.cwd().access(ORIGINAL_FILES_DIR, .{}) catch {
+        try STD.fs.cwd().makePath(ORIGINAL_FILES_DIR);
+    };
+
+    STD.fs.cwd().access(MODIFIED_FILES_DIR, .{}) catch {
+        try STD.fs.cwd().makePath(MODIFIED_FILES_DIR);
+    };
+
+    STD.fs.cwd().access(ORIGINAL_FILE_PATH, .{}) catch {
+        try STD.fs.cwd().writeFile(.{ .sub_path = ORIGINAL_FILE_PATH, .data = "hello", .flags = .{ .truncate = true } });
+    };
+
+    STD.fs.cwd().access(MODIFIED_FILE_PATH, .{}) catch {
+        try STD.fs.cwd().writeFile(.{ .sub_path = MODIFIED_FILE_PATH, .data = "hey", .flags = .{ .truncate = true } });
+    };
+}
+
+test "patch system" {
+    var allocator: STD.mem.Allocator = STD.testing.allocator;
+
+    try PATCH.run(allocator);
+}
+
+test "patch" {
+    var allocator: STD.mem.Allocator = STD.testing.allocator;
+
+    _ = allocator;
+}