From 77993c967deafab37d9c22f45b811dcc09feadd6 Mon Sep 17 00:00:00 2001
From: Leonardo de Moura <leonardo@microsoft.com>
Date: Thu, 26 Apr 2018 17:36:41 -0700
Subject: [PATCH] chore(tests/lean): restore string tests

---
 tests/lean/extract.lean                  | 79 ++++++++++++++++++++++++
 tests/lean/extract.lean.expected.out     | 79 ++++++++++++++++++++++++
 tests/lean/string_imp.lean               | 15 +++++
 tests/lean/string_imp.lean.expected.out  | 15 +++++
 tests/lean/string_imp2.lean              | 73 ++++++++++++++++++++++
 tests/lean/string_imp2.lean.expected.out | 52 ++++++++++++++++
 6 files changed, 313 insertions(+)
 create mode 100644 tests/lean/extract.lean
 create mode 100644 tests/lean/extract.lean.expected.out
 create mode 100644 tests/lean/string_imp.lean
 create mode 100644 tests/lean/string_imp.lean.expected.out
 create mode 100644 tests/lean/string_imp2.lean
 create mode 100644 tests/lean/string_imp2.lean.expected.out

diff --git a/tests/lean/extract.lean b/tests/lean/extract.lean
new file mode 100644
index 0000000000..bbcbaf2b70
--- /dev/null
+++ b/tests/lean/extract.lean
@@ -0,0 +1,79 @@
+#eval "abc"
+
+/- some "a" -/
+#eval
+ let s₁  := "abcde" in
+ let it₁ := s₁.mk_iterator in
+ let it₂ := it₁.next in
+ it₁.extract it₂
+
+/- some "" -/
+#eval
+ let s₁  := "abcde" in
+ let it₁ := s₁.mk_iterator in
+ it₁.extract it₁
+
+/- none -/
+#eval
+ let s₁  := "abcde" in
+ let it₁ := s₁.mk_iterator in
+ let it₂ := it₁.next in
+ it₂.extract it₁
+
+/- some "abc" -/
+#eval
+ let s₁  := "abcde" in
+ let it₁ := s₁.mk_iterator in
+ let it₂ := it₁.next.next.next.prev.next in
+ it₁.extract it₂
+
+/- some "bcde" -/
+#eval
+ let s₁  := "abcde" in
+ let it₁ := s₁.mk_iterator.next in
+ let it₂ := it₁.next.next.next.next in
+ it₁.extract it₂
+
+/- some "abcde" -/
+#eval
+ let s₁  := "abcde" in
+ let it₁ := s₁.mk_iterator in
+ let it₂ := it₁.next.next.next.next.next in
+ it₁.extract it₂
+
+/- some "ab" -/
+#eval
+  let s₁  := "abcde" in
+  let s₂  := "abcde" in
+  let it₁ := s₁.mk_iterator in
+  let it₂ := s₂.mk_iterator.next.next in
+  it₁.extract it₂
+
+/- none -/
+#eval
+  let s₁  := "abcde" in
+  let s₂  := "abhde" in
+  let it₁ := s₁.mk_iterator in
+  let it₂ := s₂.mk_iterator.next.next in
+  it₁.extract it₂
+
+/- none -/
+#eval
+  let s₁  := "abcde" in
+  let it₁ := s₁.mk_iterator in
+  let it₂ := it₁.next.set_curr 'a' in
+  it₁.extract it₂
+
+/- some "a" -/
+#eval
+  let s₁  := "abcde" in
+  let it₁ := s₁.mk_iterator in
+  let it₂ := it₁.next.set_curr 'b' in
+  it₁.extract it₂
+
+/- some "a" -/
+#eval
+  let s₁  := "abcde" in
+  let it₁ := s₁.mk_iterator in
+  let it₂ := (it₁.next.set_curr 'a').set_curr 'b' in
+  it₁.extract it₂
diff --git a/tests/lean/extract.lean.expected.out b/tests/lean/extract.lean.expected.out
new file mode 100644
index 0000000000..bbcbaf2b70
--- /dev/null
+++ b/tests/lean/extract.lean.expected.out
@@ -0,0 +1,79 @@
+#eval "abc"
+
+/- some "a" -/
+#eval
+ let s₁  := "abcde" in
+ let it₁ := s₁.mk_iterator in
+ let it₂ := it₁.next in
+ it₁.extract it₂
+
+/- some "" -/
+#eval
+ let s₁  := "abcde" in
+ let it₁ := s₁.mk_iterator in
+ it₁.extract it₁
+
+/- none -/
+#eval
+ let s₁  := "abcde" in
+ let it₁ := s₁.mk_iterator in
+ let it₂ := it₁.next in
+ it₂.extract it₁
+
+/- some "abc" -/
+#eval
+ let s₁  := "abcde" in
+ let it₁ := s₁.mk_iterator in
+ let it₂ := it₁.next.next.next.prev.next in
+ it₁.extract it₂
+
+/- some "bcde" -/
+#eval
+ let s₁  := "abcde" in
+ let it₁ := s₁.mk_iterator.next in
+ let it₂ := it₁.next.next.next.next in
+ it₁.extract it₂
+
+/- some "abcde" -/
+#eval
+ let s₁  := "abcde" in
+ let it₁ := s₁.mk_iterator in
+ let it₂ := it₁.next.next.next.next.next in
+ it₁.extract it₂
+
+/- some "ab" -/
+#eval
+  let s₁  := "abcde" in
+  let s₂  := "abcde" in
+  let it₁ := s₁.mk_iterator in
+  let it₂ := s₂.mk_iterator.next.next in
+  it₁.extract it₂
+
+/- none -/
+#eval
+  let s₁  := "abcde" in
+  let s₂  := "abhde" in
+  let it₁ := s₁.mk_iterator in
+  let it₂ := s₂.mk_iterator.next.next in
+  it₁.extract it₂
+
+/- none -/
+#eval
+  let s₁  := "abcde" in
+  let it₁ := s₁.mk_iterator in
+  let it₂ := it₁.next.set_curr 'a' in
+  it₁.extract it₂
+
+/- some "a" -/
+#eval
+  let s₁  := "abcde" in
+  let it₁ := s₁.mk_iterator in
+  let it₂ := it₁.next.set_curr 'b' in
+  it₁.extract it₂
+
+/- some "a" -/
+#eval
+  let s₁  := "abcde" in
+  let it₁ := s₁.mk_iterator in
+  let it₂ := (it₁.next.set_curr 'a').set_curr 'b' in
+  it₁.extract it₂
diff --git a/tests/lean/string_imp.lean b/tests/lean/string_imp.lean
new file mode 100644
index 0000000000..19758b98dc
--- /dev/null
+++ b/tests/lean/string_imp.lean
@@ -0,0 +1,15 @@
+#eval ("abc" ++ "cde").length
+#eval "abc".pop_back
+#eval "".pop_back
+#eval "abcd".pop_back
+#eval ("abcd".mk_iterator.nextn 2).next_to_string
+#eval ("abcd".mk_iterator.nextn 2).prev_to_string
+#eval ("abcd".mk_iterator.nextn 10).next_to_string
+#eval ("abcd".mk_iterator.nextn 10).prev_to_string
+#eval "foo.lean".popn_back 5
+#eval "foo.lean".backn 5
+#eval "αβγ".pop_back
+#eval "αβ".length
+#eval ("αβcc".mk_iterator.next.insert "_foo_").to_string
+#eval ("αβcc".mk_iterator.next.next.insert "_foo_").to_string
+#eval ("αβcc".mk_iterator.next.next.prev.insert "_foo_").to_string
diff --git a/tests/lean/string_imp.lean.expected.out b/tests/lean/string_imp.lean.expected.out
new file mode 100644
index 0000000000..19758b98dc
--- /dev/null
+++ b/tests/lean/string_imp.lean.expected.out
@@ -0,0 +1,15 @@
+#eval ("abc" ++ "cde").length
+#eval "abc".pop_back
+#eval "".pop_back
+#eval "abcd".pop_back
+#eval ("abcd".mk_iterator.nextn 2).next_to_string
+#eval ("abcd".mk_iterator.nextn 2).prev_to_string
+#eval ("abcd".mk_iterator.nextn 10).next_to_string
+#eval ("abcd".mk_iterator.nextn 10).prev_to_string
+#eval "foo.lean".popn_back 5
+#eval "foo.lean".backn 5
+#eval "αβγ".pop_back
+#eval "αβ".length
+#eval ("αβcc".mk_iterator.next.insert "_foo_").to_string
+#eval ("αβcc".mk_iterator.next.next.insert "_foo_").to_string
+#eval ("αβcc".mk_iterator.next.next.prev.insert "_foo_").to_string
diff --git a/tests/lean/string_imp2.lean b/tests/lean/string_imp2.lean
new file mode 100644
index 0000000000..6a41f7ecea
--- /dev/null
+++ b/tests/lean/string_imp2.lean
@@ -0,0 +1,73 @@
+def f (s : string) : string :=
+s ++ " " ++ s
+
+def g (s : string) : string :=
+s.push ' ' ++ s.push '-'
+
+def h (s : string) : string :=
+let it₁ := s.mk_iterator in
+let it₂ := it₁.next in
+it₁.next_to_string ++ "-" ++ it₂.next_to_string
+
+def r (s : string) : string :=
+let it₁ := s.mk_iterator.to_end in
+let it₂ := it₁.prev in
+it₁.prev_to_string ++ "-" ++ it₂.prev_to_string
+
+def s (s : string) : string :=
+let it₁ := s.mk_iterator.to_end in
+let it₂ := it₁.prev in
+(it₁.insert "abc").to_string ++ (it₂.insert "de").to_string
+
+#eval "hello" ++ "hello"
+#eval f "hello"
+#eval (f "αβ").length
+#eval "hello".to_list
+#eval "αβ".to_list
+#eval "".to_list
+#eval "αβγ".to_list
+#eval "αβγ".fold [] (λ r c, c::r)
+#eval "".fold 0 (λ r c, r+1)
+#eval "αβγ".fold 0 (λ r c, r+1)
+#eval "αβγ".mk_iterator.1
+#eval "αβγ".mk_iterator.next.1
+#eval "αβγ".mk_iterator.next.next.1
+#eval "αβγ".mk_iterator.next.2
+#eval "αβ".1
+#eval string.empty
+#eval "αβ".push 'a'
+#eval g "α"
+#eval "".mk_iterator.curr
+#eval ("αβγ".mk_iterator.set_curr 'a').to_string
+#eval (("αβγ".mk_iterator.set_curr 'a').next.set_curr 'b').to_string
+#eval ((("αβγ".mk_iterator.set_curr 'a').next.set_curr 'b').next.set_curr 'c').to_string
+#eval ((("αβγ".mk_iterator.set_curr 'a').next.set_curr 'b').prev.set_curr 'c').to_string
+#eval ("abc".mk_iterator.set_curr '0').to_string
+#eval (("abc".mk_iterator.set_curr '0').next.set_curr '1').to_string
+#eval ((("abc".mk_iterator.set_curr '0').next.set_curr '1').next.set_curr '2').to_string
+#eval ((("abc".mk_iterator.set_curr '0').next.set_curr '1').prev.set_curr '2').to_string
+#eval ("abc".mk_iterator.set_curr (char.of_nat 955)).to_string
+#eval h "abc"
+#eval "abc".mk_iterator.next_to_string
+#eval ("a".push (char.of_nat 0)) ++ "bb"
+#eval (("a".push (char.of_nat 0)) ++ "αb").length
+#eval r "abc"
+#eval "abc".mk_iterator.to_end.prev_to_string
+#eval "".mk_iterator.has_next
+#eval "a".mk_iterator.has_next
+#eval "a".mk_iterator.next.has_next
+#eval "".mk_iterator.has_prev
+#eval "a".mk_iterator.next.has_prev
+#eval "αβ".mk_iterator.next.has_prev
+#eval "αβ".mk_iterator.next.prev.has_prev
+#eval ("αβ".mk_iterator.to_end.insert "abc").to_string
+#eval ("αβ".mk_iterator.next.insert "abc").to_string
+#eval s "αβ"
+#eval ("abcdef".mk_iterator.next.remove 2).to_string
+#eval ("abcdef".mk_iterator.next.next.remove 2).to_string
+#eval ("abcdef".mk_iterator.next.remove 3).to_string
+#eval (("abcdef".mk_iterator.next.next.next.remove 100).prev.set_curr 'a').to_string
+#eval ("abcdef".mk_iterator.next.next.next.remove 100).has_next
+#eval ("abcdef".mk_iterator.next.next.next.remove 100).prev.has_next
+#eval to_bool $ "abc" = "abc"
+#eval to_bool $ "abc" = "abd"
diff --git a/tests/lean/string_imp2.lean.expected.out b/tests/lean/string_imp2.lean.expected.out
new file mode 100644
index 0000000000..e5064c055c
--- /dev/null
+++ b/tests/lean/string_imp2.lean.expected.out
@@ -0,0 +1,52 @@
+"hellohello"
+"hello hello"
+5
+['h', 'e', 'l', 'l', 'o']
+['α', 'β']
+[]
+['α', 'β', 'γ']
+['γ', 'β', 'α']
+0
+3
+[]
+['α']
+['β', 'α']
+['β', 'γ']
+['α', 'β']
+""
+"αβa"
+"α α-"
+'A'
+"aβγ"
+"abγ"
+"abc"
+"cbγ"
+"0bc"
+"01c"
+"012"
+"21c"
+"λbc"
+"abc-bc"
+"abc"
+"a\x00bb"
+4
+"abc-ab"
+"abc"
+ff
+tt
+ff
+ff
+tt
+tt
+ff
+"αβabc"
+"αabcβ"
+"αβabcαdeβ"
+"adef"
+"abef"
+"aef"
+"aba"
+ff
+tt
+tt
+ff