refactor(bot): add newTestMessage helper

This commit reduces the repetitions in the tests when we create new
messages. It hardcodes a bunch of fields that are currently not used,
but might be eventually.

src/bot.zig

@@ -185,15 +185,19 @@ pub const Bot = struct {
     }
 };
 
-test "deiniting an owned Message leaks no memory" {
+fn newTestMessage(allocator: std.mem.Allocator, content: []const u8) !*Message {
-    const allocator = std.testing.allocator;
+    return try Message.init_owned(
-    const testMessage = try Message.init_owned(
         allocator,
         12345,
         "jassob",
         "#test",
-        "All your codebase are belong to us.\n",
+        content,
     );
+}
+
+test "deiniting an owned Message leaks no memory" {
+    const allocator = std.testing.allocator;
+    const testMessage = try newTestMessage(allocator, "test");
     testMessage.deinit(allocator);
 }
 
@@ -207,13 +211,7 @@ test "hear and deinit has no leaks" {
     var bot = try Bot.init(allocator);
     defer bot.deinit();
 
-    const testMessage = try Message.init_owned(
+    const testMessage = try newTestMessage(allocator, "test");
-        allocator,
-        12345,
-        "jassob",
-        "#test",
-        "All your codebase are belong to us.\n",
-    );
     bot.hear(testMessage);
 
     try std.testing.expectEqual(0, bot.backlog.top);
@@ -224,14 +222,8 @@ test "a few hears and deinit has no leaks" {
     var bot = try Bot.init(allocator);
     defer bot.deinit();
 
-    for (0..2) |i| {
+    for (0..2) |_| {
-        const testMessage = try Message.init_owned(
+        const testMessage = try newTestMessage(std.testing.allocator, "test");
-            std.testing.allocator,
-            @intCast(i),
-            "jassob",
-            "#test",
-            "All your codebase are belong to us.\n",
-        );
         bot.hear(testMessage);
     }
 
@@ -243,13 +235,7 @@ test "hear wraps" {
     defer bot.deinit();
 
     for (0..1025) |_| {
-        const testMessage = try Message.init_owned(
+        const testMessage = try newTestMessage(std.testing.allocator, "test");
-            std.testing.allocator,
-            12345,
-            "jassob",
-            "#test",
-            "All your codebase are belong to us.\n",
-        );
         bot.hear(testMessage);
     }
 
@@ -274,17 +260,12 @@ test "execute substitution no previous message" {
 }
 
 test "execute substitution" {
-    var bot = try Bot.init(std.testing.allocator);
+    const allocator = std.testing.allocator;
+    var bot = try Bot.init(allocator);
     defer bot.deinit();
 
     // hear original message with typo
-    const msg = try Message.init_owned(
+    const msg = try newTestMessage(allocator, "What");
-        std.testing.allocator,
-        1234,
-        "jassob",
-        "#test",
-        "What",
-    );
     bot.hear(msg);
 
     // execute substitution
@@ -307,13 +288,7 @@ test "execute substitution with no matching needle" {
     defer bot.deinit();
 
     // hear original message
-    const msg = try Message.init_owned(
+    const msg = try newTestMessage(std.testing.allocator, "original");
-        std.testing.allocator,
-        1234,
-        "jassob",
-        "#test",
-        "original",
-    );
     bot.hear(msg);
 
     // execute substitution