Implement between + improve error handling

1 files changed, 19 insertions, 1 deletions

diff --git a/spec/parcom_spec.cr b/spec/parcom_spec.cr
index 6301c2e..fd4b470 100644
--- a/spec/parcom_spec.cr
+++ b/spec/parcom_spec.cr
@@ -539,6 +539,7 @@ describe AtLeast do
     it "fails if there are not enough matching tokens to parse" do
       p = AtLeast.new(5, letter_a)
       expect_raises(ParserException) { p.parse(tokens) }
+      #expect_raises(ParserException) { raise ParserException.new("sdgseg") }
     end
 
     it "parses n or more times with the given parser" do
@@ -584,7 +585,24 @@ describe AtMost do
   end
 end
 
-pending Between do
+describe Between do
+  letter_a = Token.new('a')
+  tokens = TokenStream.from_string("aaaabcd")
+
+  describe "#parse" do
+    it "parses at least i times, up to a limit of j times" do
+      p0_4 = Between.new(0, 4, letter_a)
+      r0_4 = p0_4.parse(tokens)
+
+      r0_4.value.should eq("aaaa".chars)
+      r0_4.tokens.should eq(tokens[4..])
+    end
+
+    it "fails if there are not enough parser successes" do
+      p = Between.new(5, 6, letter_a)
+      expect_raises(ParserException) { p.parse(tokens) }
+    end
+  end
 end
 
 pending StopAt do