Tests for Base.cwstring

JuliaLang · Oct 11, 2024 · 0c5d494 · 0c5d494
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@@ -1409,3 +1409,18 @@ end
         @test transcode(String, transcode(UInt8, transcode(UInt16, str))) == str
     end
 end
+
+@testset "cwstring" begin
+    # empty string
+    str_0 = ""
+    # string with embedded NUL character
+    str_1 = "Au\000B"
+    # string with terminating NUL character
+    str_2 = "Wordu\000"
+    # "Regular" string with UTF-8 characters of differing byte counts
+    str_3 = "aܣ𒀀"
+    @test Base.cwstring(str_0) = UInt16[0x0000]
+    @test_throws ArgumentError Base.cwstring(str_1)
+    @test Base.cwstring(str_2) == UInt16[0x0057, 0x006f, 0x0072, 0x0064, 0x0000]
+    @test Base.cwstring(str_3) == UInt16[0x0061, 0x0723, 0xd808, 0xdc00, 0x0000]
+end