hy/tests/native_tests/contrib/hy_repr.hy

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;; Copyright 2018 the authors.
;; This file is part of Hy, which is free software licensed under the Expat
;; license. See the LICENSE.
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(import
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[hy._compat [PY3 PY36]]
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[math [isnan]]
[hy.contrib.hy-repr [hy-repr hy-repr-register]])
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(defn test-hy-repr-roundtrip-from-value []
; Test that a variety of values round-trip properly.
(setv values [
None False True
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5 5.1 '5 '5.1 Inf -Inf
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(int 5)
1/2
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5j 5.1j 2+1j 1.2+3.4j Inf-Infj
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"" b""
'"" 'b""
"apple bloom" b"apple bloom" "⚘"
'"apple bloom" 'b"apple bloom" '"⚘"
"single ' quotes" b"single ' quotes"
"\"double \" quotes\"" b"\"double \" quotes\""
'mysymbol :mykeyword
[] (,) #{} (frozenset #{})
'[] '(,) '#{} '(frozenset #{})
'['[]]
'(+ 1 2)
[1 2 3] (, 1 2 3) #{1 2 3} (frozenset #{1 2 3})
'[1 2 3] '(, 1 2 3) '#{1 2 3} '(frozenset #{1 2 3})
{"a" 1 "b" 2 "a" 3} '{"a" 1 "b" 2 "a" 3}
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[1 [2 3] (, 4 (, 'mysymbol :mykeyword)) {"a" b"hello"} '(f #* a #** b)]
'[1 [2 3] (, 4 (, mysymbol :mykeyword)) {"a" b"hello"} (f #* a #** b)]])
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(for [original-val values]
(setv evaled (eval (read-str (hy-repr original-val))))
(assert (= evaled original-val))
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(assert (is (type evaled) (type original-val))))
(assert (isnan (eval (read-str (hy-repr NaN))))))
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(defn test-hy-repr-roundtrip-from-str []
(setv strs [
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"'Inf"
"'-Inf"
"'NaN"
"1+2j"
"NaN+NaNj"
"'NaN+NaNj"
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"[1 2 3]"
"'[1 2 3]"
"[1 'a 3]"
"'[1 a 3]"
"'[1 'a 3]"
"[1 '[2 3] 4]"
"'[1 [2 3] 4]"
"'[1 '[2 3] 4]"
"'[1 `[2 3] 4]"
"'[1 `[~foo ~@bar] 4]"
"'[1 `[~(+ 1 2) ~@(+ [1] [2])] 4]"
"'[1 `[~(do (print x 'y) 1)] 4]"
"{1 20}"
"'{1 10 1 20}"
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"'asymbol"
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":akeyword"
"'(f #* args #** kwargs)"])
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(for [original-str strs]
(setv rep (hy-repr (eval (read-str original-str))))
(assert (= rep original-str))))
(defn test-hy-repr-no-roundtrip []
; Test one of the corner cases in which hy-repr doesn't
; round-trip: when a HyObject contains a non-HyObject, we
; promote the constituent to a HyObject.
(setv orig `[a ~5.0])
(setv reprd (hy-repr orig))
(assert (= reprd "'[a 5.0]"))
(setv result (eval (read-str reprd)))
(assert (is (type (get orig 1)) float))
(assert (is (type (get result 1)) HyFloat)))
(when PY3 (defn test-bytes-keywords []
; Make sure that keyword-like bytes objects aren't hy-repred as if
; they were real keywords.
(setv kw :mykeyword)
(assert (= (hy-repr kw) ":mykeyword"))
(assert (= (hy-repr (str ':mykeyword)) ":mykeyword"))
(assert (= (hy-repr (.encode kw "UTF-8") #[[b"\xef\xb7\x90:hello"]])))))
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(when PY3 (defn test-dict-views []
(assert (= (hy-repr (.keys {1 2})) "(dict-keys [1])"))
(assert (= (hy-repr (.values {1 2})) "(dict-values [2])"))
(assert (= (hy-repr (.items {1 2})) "(dict-items [(, 1 2)])"))))
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(defn test-datetime []
(import [datetime :as D])
(assert (= (hy-repr (D.datetime 2009 1 15 15 27 5 0))
"(datetime.datetime 2009 1 15 15 27 5)"))
(assert (= (hy-repr (D.datetime 2009 1 15 15 27 5 123))
"(datetime.datetime 2009 1 15 15 27 5 123)"))
(when PY3
(assert (= (hy-repr (D.datetime 2009 1 15 15 27 5 123 :tzinfo D.timezone.utc))
"(datetime.datetime 2009 1 15 15 27 5 123 :tzinfo datetime.timezone.utc)")))
(when PY36
(assert (= (hy-repr (D.datetime 2009 1 15 15 27 5 :fold 1))
"(datetime.datetime 2009 1 15 15 27 5 :fold 1)"))
(assert (= (hy-repr (D.datetime 2009 1 15 15 27 5 :fold 1 :tzinfo D.timezone.utc))
"(datetime.datetime 2009 1 15 15 27 5 :tzinfo datetime.timezone.utc :fold 1)")))
(assert (= (hy-repr (D.date 2015 11 3))
"(datetime.date 2015 11 3)"))
(assert (= (hy-repr (D.time 1 2 3))
"(datetime.time 1 2 3)"))
(assert (= (hy-repr (D.time 1 2 3 4567))
"(datetime.time 1 2 3 4567)"))
(when PY36
(assert (= (hy-repr (D.time 1 2 3 4567 :fold 1 :tzinfo D.timezone.utc))
"(datetime.time 1 2 3 4567 :tzinfo datetime.timezone.utc :fold 1)"))))
(defn test-collections []
(import collections)
(assert (= (hy-repr (collections.defaultdict :a 8))
(if PY3
"(defaultdict None {\"a\" 8})"
"(defaultdict None {b\"a\" 8})")))
(assert (= (hy-repr (collections.defaultdict int :a 8))
(if PY3
"(defaultdict <class 'int'> {\"a\" 8})"
"(defaultdict <type 'int'> {b\"a\" 8})")))
(assert (= (hy-repr (collections.Counter [15 15 15 15]))
(if PY3
"(Counter {15 4})"
"(Counter {15 (int 4)})")))
(setv C (collections.namedtuple "Fooey" ["cd" "a_b"]))
(assert (= (hy-repr (C 11 12))
"(Fooey :cd 11 :a_b 12)")))
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(defn test-hy-model-constructors []
(import hy)
(assert (= (hy-repr (hy.HyInteger 7)) "'7"))
(assert (= (hy-repr (hy.HyString "hello")) "'\"hello\""))
(assert (= (hy-repr (hy.HyList [1 2 3])) "'[1 2 3]"))
(assert (= (hy-repr (hy.HyDict [1 2 3])) "'{1 2 3}")))
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(defn test-hy-repr-self-reference []
(setv x [1 2 3])
(setv (get x 1) x)
(assert (= (hy-repr x) "[1 [...] 3]"))
(setv x {1 2 3 [4 5] 6 7})
(setv (get x 3 1) x)
(assert (in (hy-repr x) (list-comp
; The ordering of a dictionary isn't guaranteed, so we need
; to check for all possible orderings.
(+ "{" (.join " " p) "}")
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[p (permutations ["1 2" "3 [4 {...}]" "6 7"])]))))
(defn test-matchobject []
(import re)
(setv mo (re.search "b+" "aaaabbbccc"))
(assert (= (hy-repr mo)
(.format
#[[<{}.SRE_Match object; :span {} :match "bbb">]]
(. (type mo) __module__)
(if PY3 "(, 4 7)" "(, (int 4) (int 7))")))))
(defn test-hy-repr-custom []
(defclass C [object])
(hy-repr-register C (fn [x] "cuddles"))
(assert (= (hy-repr (C)) "cuddles"))
(defclass Container [object]
[__init__ (fn [self value]
(setv self.value value))])
(hy-repr-register Container :placeholder "(Container ...)" (fn [x]
(+ "(Container " (hy-repr x.value) ")")))
(setv container (Container 5))
(setv container.value container)
(assert (= (hy-repr container) "(Container (Container ...))"))
(setv container.value [1 container 3])
(assert (= (hy-repr container) "(Container [1 (Container ...) 3])")))
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(defn test-hy-repr-fallback []
(defclass D [object]
[__repr__ (fn [self] "cuddles")])
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(assert (= (hy-repr (D)) "cuddles")))