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-rw-r--r--spec/util_format_spec.lua1
1 files changed, 1 insertions, 0 deletions
diff --git a/spec/util_format_spec.lua b/spec/util_format_spec.lua
index b091a86d..7e6a0c6e 100644
--- a/spec/util_format_spec.lua
+++ b/spec/util_format_spec.lua
@@ -5,6 +5,7 @@ describe("util.format", function()
it("should work", function()
assert.equal("hello", format("%s", "hello"));
assert.equal("<nil>", format("%s"));
+ assert.equal(" [<nil>]", format("", nil));
assert.equal("true", format("%s", true));
assert.equal("[true]", format("%d", true));
assert.equal("% [true]", format("%%", true));