[Claude Test run] Implement matches_regex assertion types

build.zig

@@ -4,6 +4,7 @@ pub fn build(b: *std.Build) void {
     const exe_name = b.option([]const u8, "exe_name", "Name of the executable") orelse "httpspec";
     const dependencies = [_][]const u8{
         "clap",
+        "regex",
     };
 
     const target = b.standardTargetOptions(.{});

build.zig.zon

@@ -40,6 +40,10 @@
             .url = "git+https://github.com/Hejsil/zig-clap#cc5c6a5d71a317ed4b0ad776842d1d0655f72d0a",
             .hash = "clap-0.10.0-oBajB7jkAQAZ4cKLlzkeV9mDu2yGZvtN2QuOyfAfjBij",
         },
+        .regex = .{
+            .url = "git+https://github.com/tiehuis/zig-regex#8e38e11d45d3c45e06ed3e994e1eb2e62ed60637",
+            .hash = "1220c65e96eb14c7de3e3a82bfc45a66e7ca72b80e0ae82d1b6b6e58b7d8c9e7b8",
+        },
     },
     .paths = .{
         "build.zig",

src/httpfile/assertion_checker.zig

@@ -43,6 +43,7 @@ test "HttpParser supports contains and not_contains for headers" {
 }
 const std = @import("std");
 const http = std.http;
+const regex = @import("regex");
 const HttpParser = @import("./parser.zig");
 const Client = @import("./http_client.zig");
 
@@ -54,6 +55,17 @@ fn extractHeaderName(key: []const u8) ![]const u8 {
     return key[start_quote + 1 .. end_quote];
 }
 
+fn matchesRegex(text: []const u8, pattern: []const u8) bool {
+    var arena = std.heap.ArenaAllocator.init(std.heap.page_allocator);
+    defer arena.deinit();
+    const allocator = arena.allocator();
+
+    const compiled_regex = regex.compile(allocator, pattern) catch return false;
+    defer compiled_regex.deinit();
+
+    return compiled_regex.match(text);
+}
+
 pub fn check(request: *HttpParser.HttpRequest, response: Client.HttpResponse) !void {
     const stderr = std.io.getStdErr().writer();
     for (request.assertions.items) |assertion| {
@@ -184,6 +196,58 @@ pub fn check(request: *HttpParser.HttpRequest, response: Client.HttpResponse) !v
                     return error.InvalidAssertionKey;
                 }
             },
+            .matches_regex => {
+                if (std.ascii.eqlIgnoreCase(assertion.key, "status")) {
+                    var status_buf: [3]u8 = undefined;
+                    const status_code = @intFromEnum(response.status.?);
+                    const status_str = std.fmt.bufPrint(&status_buf, "{}", .{status_code}) catch return error.StatusCodeFormat;
+                    if (!matchesRegex(status_str, assertion.value)) {
+                        stderr.print("[Fail] Expected status code to match regex \"{s}\", got \"{s}\"\n", .{ assertion.value, status_str }) catch {};
+                        return error.StatusCodeNotMatchesRegex;
+                    }
+                } else if (std.ascii.eqlIgnoreCase(assertion.key, "body")) {
+                    if (!matchesRegex(response.body, assertion.value)) {
+                        stderr.print("[Fail] Expected body content to match regex \"{s}\", got \"{s}\"\n", .{ assertion.value, response.body }) catch {};
+                        return error.BodyContentNotMatchesRegex;
+                    }
+                } else if (std.mem.startsWith(u8, assertion.key, "header[\"")) {
+                    const header_name = try extractHeaderName(assertion.key);
+                    const actual_value = response.headers.get(header_name);
+                    if (actual_value == null or !matchesRegex(actual_value.?, assertion.value)) {
+                        stderr.print("[Fail] Expected header \"{s}\" to match regex \"{s}\", got \"{s}\"\n", .{ header_name, assertion.value, actual_value orelse "null" }) catch {};
+                        return error.HeaderNotMatchesRegex;
+                    }
+                } else {
+                    stderr.print("[Fail] Invalid assertion key for matches_regex: {s}\n", .{assertion.key}) catch {};
+                    return error.InvalidAssertionKey;
+                }
+            },
+            .not_matches_regex => {
+                if (std.ascii.eqlIgnoreCase(assertion.key, "status")) {
+                    var status_buf: [3]u8 = undefined;
+                    const status_code = @intFromEnum(response.status.?);
+                    const status_str = std.fmt.bufPrint(&status_buf, "{}", .{status_code}) catch return error.StatusCodeFormat;
+                    if (matchesRegex(status_str, assertion.value)) {
+                        stderr.print("[Fail] Expected status code to NOT match regex \"{s}\", got \"{s}\"\n", .{ assertion.value, status_str }) catch {};
+                        return error.StatusCodeMatchesRegexButShouldnt;
+                    }
+                } else if (std.ascii.eqlIgnoreCase(assertion.key, "body")) {
+                    if (matchesRegex(response.body, assertion.value)) {
+                        stderr.print("[Fail] Expected body content to NOT match regex \"{s}\", got \"{s}\"\n", .{ assertion.value, response.body }) catch {};
+                        return error.BodyContentMatchesRegexButShouldnt;
+                    }
+                } else if (std.mem.startsWith(u8, assertion.key, "header[\"")) {
+                    const header_name = try extractHeaderName(assertion.key);
+                    const actual_value = response.headers.get(header_name);
+                    if (actual_value != null and matchesRegex(actual_value.?, assertion.value)) {
+                        stderr.print("[Fail] Expected header \"{s}\" to NOT match regex \"{s}\", got \"{s}\"\n", .{ header_name, assertion.value, actual_value orelse "null" }) catch {};
+                        return error.HeaderMatchesRegexButShouldnt;
+                    }
+                } else {
+                    stderr.print("[Fail] Invalid assertion key for not_matches_regex: {s}\n", .{assertion.key}) catch {};
+                    return error.InvalidAssertionKey;
+                }
+            },
             else => {},
         }
     }
@@ -340,3 +404,61 @@ test "HttpParser supports starts_with for status, body, and header" {
 
     try check(&request, response);
 }
+
+test "HttpParser supports matches_regex and not_matches_regex for status, body, and headers" {
+    const allocator = std.testing.allocator;
+
+    var assertions = std.ArrayList(HttpParser.Assertion).init(allocator);
+    defer assertions.deinit();
+
+    // Should pass: status matches regex for 2xx codes
+    try assertions.append(HttpParser.Assertion{
+        .key = "status",
+        .value = "^2.*",
+        .assertion_type = .matches_regex,
+    });
+
+    // Should pass: body matches regex for JSON-like content
+    try assertions.append(HttpParser.Assertion{
+        .key = "body",
+        .value = ".*success.*",
+        .assertion_type = .matches_regex,
+    });
+
+    // Should pass: header matches regex for application/* content types
+    try assertions.append(HttpParser.Assertion{
+        .key = "header[\"content-type\"]",
+        .value = "application/.*",
+        .assertion_type = .matches_regex,
+    });
+
+    // Should pass: status does not match regex for error codes
+    try assertions.append(HttpParser.Assertion{
+        .key = "status",
+        .value = "^[45].*",
+        .assertion_type = .not_matches_regex,
+    });
+
+    var request = HttpParser.HttpRequest{
+        .method = .GET,
+        .url = "https://api.example.com",
+        .headers = std.ArrayList(http.Header).init(allocator),
+        .assertions = assertions,
+        .body = null,
+    };
+
+    var response_headers = std.StringHashMap([]const u8).init(allocator);
+    try response_headers.put("content-type", "application/json");
+    defer response_headers.deinit();
+
+    const body = try allocator.dupe(u8, "Operation success completed");
+    defer allocator.free(body);
+    const response = Client.HttpResponse{
+        .status = http.Status.ok,
+        .headers = response_headers,
+        .body = body,
+        .allocator = allocator,
+    };
+
+    try check(&request, response);
+}

src/httpfile/parser.zig

@@ -13,8 +13,8 @@ const AssertionType = enum {
     not_contains,
     starts_with,
     ends_with,
-    // matches_regex, TODO: Soon.
-    // not_matches_regex,
+    matches_regex,
+    not_matches_regex,
 
     pub fn fromString(s: []const u8) ?AssertionType {
         if (std.ascii.eqlIgnoreCase(s, "==")) return .equal;
@@ -24,8 +24,8 @@ const AssertionType = enum {
         if (std.ascii.eqlIgnoreCase(s, "not_contains")) return .not_contains;
         if (std.ascii.eqlIgnoreCase(s, "starts_with")) return .starts_with;
         if (std.ascii.eqlIgnoreCase(s, "ends_with")) return .ends_with;
-        // if (std.ascii.eqlIgnoreCase(s, "matches_regex")) return .matches_regex;
-        // if (std.ascii.eqlIgnoreCase(s, "not_matches_regex")) return .not_matches_regex;
+        if (std.ascii.eqlIgnoreCase(s, "matches_regex")) return .matches_regex;
+        if (std.ascii.eqlIgnoreCase(s, "not_matches_regex")) return .not_matches_regex;
         return null;
     }
 };