Import guile-1.8 as multiple upstream tarball component

[lilypond.git] / guile18 / test-suite / tests / format.test

diff --git a/guile18/test-suite/tests/format.test b/guile18/test-suite/tests/format.test
new file mode 100644 (file)
index 0000000..cc3b668
--- /dev/null
+++ b/guile18/test-suite/tests/format.test
@@ -0,0 +1,100 @@
+;;;; format.test --- test suite for Guile's CL-ish format  -*- scheme -*-
+;;;; Matthias Koeppe <mkoeppe@mail.math.uni-magdeburg.de> --- June 2001
+;;;;
+;;;;   Copyright (C) 2001, 2003, 2004, 2006 Free Software Foundation, Inc.
+;;;; 
+;;;; This program is free software; you can redistribute it and/or modify
+;;;; it under the terms of the GNU General Public License as published by
+;;;; the Free Software Foundation; either version 2, or (at your option)
+;;;; any later version.
+;;;; 
+;;;; This program is distributed in the hope that it will be useful,
+;;;; but WITHOUT ANY WARRANTY; without even the implied warranty of
+;;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+;;;; GNU General Public License for more details.
+;;;; 
+;;;; You should have received a copy of the GNU General Public License
+;;;; along with this software; see the file COPYING.  If not, write to
+;;;; the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+;;;; Boston, MA 02110-1301 USA
+
+(define-module (test-format)
+  #:use-module (test-suite lib)
+  #:use-module (ice-9 format))
+
+
+;;; FORMAT Basic Output
+
+(with-test-prefix "format basic output"
+  (pass-if "format ~% produces a new line"
+          (string=? (format "~%") "\n"))
+  (pass-if "format ~& starts a fresh line"
+          (string=? (format "~&abc~&~&") "abc\n"))
+  (pass-if "format ~& is stateless but works properly across outputs via port-column"
+          (string=?
+           (with-output-to-string
+             (lambda ()
+               (display "xyz")
+               (format #t "~&abc")
+               (format #f "~&")        ; shall have no effect
+               (format #t "~&~&")))
+           "xyz\nabc\n"))
+  (pass-if "format ~F (format-out-substr) maintains the column correctly"
+          (= (string-length (format "~@F~20T" 1)) 20)))
+
+;;;
+;;; misc
+;;;
+
+(with-test-prefix "format"
+
+  ;; in guile 1.6.4 and earlier, excess arguments were an error, but this
+  ;; changed to follow the common lisp spec
+  (pass-if "excess arguments ignored A"
+    (string=? (format #f "" 1 2 3 4) ""))
+  (pass-if "excess arguments ignored B"
+    (string=? (format #f "~a ~a" 1 2 3 4) "1 2")))
+
+;;;
+;;; ~d
+;;;
+
+(with-test-prefix "~d decimal integer"
+
+  (with-test-prefix "~@d"
+
+    (pass-if "-1"
+      (string=? (format #f "~@d" -1) "-1"))
+
+    ;; in guile 1.6.4 and earlier, ~@d gave "0" but we think "+0" is what the
+    ;; common lisp spec intendes
+    (pass-if "+0"
+      (string=? (format #f "~@d" 0) "+0"))
+
+    (pass-if "+1"
+      (string=? (format #f "~@d" 1) "+1"))))
+
+;;;
+;;; ~f
+;;;
+
+(with-test-prefix "~f fixed-point"
+
+  (pass-if "1.5"
+    (string=? "1.5" (format #f "~f" 1.5)))
+  
+  ;; in guile prior to 1.6.9 and 1.8.1, leading zeros were incorrectly
+  ;; stripped, moving the decimal point and giving "25.0" here
+  (pass-if "string 02.5"
+    (string=? "2.5" (format #f "~f" "02.5"))))
+
+;;;
+;;; ~{
+;;;
+
+(with-test-prefix "~{ iteration"
+
+  ;; In Guile 1.6.4 and earlier, the maximum iterations parameter defaulted
+  ;; to 100, but it's now like Common Lisp where the default is no limit
+  (pass-if "no arbitrary iteration limit"
+    (= (string-length (format "~{~a~}" (make-list 200 #\b))) 200)))