Add specs for Time.new

core/time/new_spec.rb

@@ -475,4 +475,164 @@ def zone.local_to_utc(t)
       end
     end
   end
+
+  ruby_version_is "3.2" do
+    describe "Time.new with a String argument" do
+      it "parses an ISO-8601 like format" do
+        t = Time.utc(2020, 12, 24, 15, 56, 17)
+
+        Time.new("2020-12-24T15:56:17Z").should == t
+        Time.new("2020-12-25 00:56:17 +09:00").should == t
+        Time.new("2020-12-25 00:57:47 +09:01:30").should == t
+        Time.new("2020-12-25 00:56:17 +0900").should == t
+        Time.new("2020-12-25 00:57:47 +090130").should == t
+        Time.new("2020-12-25T00:56:17+09:00").should == t
+      end
+
+      it "accepts precision keyword argument and truncates specified digits of sub-second part" do
+        Time.new("2021-12-25 00:00:00.123456789876 +09:00").subsec.should == 0.123456789r
+        Time.new("2021-12-25 00:00:00.123456789876 +09:00", precision: nil).subsec.should == 0.123456789876r
+        Time.new("2021-12-25 00:00:00 +09:00", precision: 0).subsec.should == 0
+        Time.new("2021-12-25 00:00:00.123456789876 +09:00", precision: -1).subsec.should == 0.123456789876r
+      end
+
+      it "returns Time in local timezone if not provided in the String argument" do
+        Time.new("2021-12-25 00:00:00").zone.should == Time.now.zone
+        Time.new("2021-12-25 00:00:00").utc_offset.should == Time.now.utc_offset
+      end
+
+      it "returns Time in timezone specified in the String argument" do
+        Time.new("2021-12-25 00:00:00 +05:00").to_s.should == "2021-12-25 00:00:00 +0500"
+      end
+
+      it "returns Time in timezone specified in the String argument even if the in keyword argument provided" do
+        Time.new("2021-12-25 00:00:00 +09:00", in: "-01:00").to_s.should == "2021-12-25 00:00:00 +0900"
+      end
+
+      it "returns Time in timezone specified with in keyword argument if timezone isn't provided in the String argument" do
+        Time.new("2021-12-25 00:00:00", in: "-01:00").to_s.should == "2021-12-25 00:00:00 -0100"
+      end
+
+      it "converts precision keyword argument into Integer if is not nil" do
+        obj = Object.new
+        def obj.to_int; 3; end
+
+        Time.new("2021-12-25 00:00:00.123456789876 +09:00", precision: 1.2).subsec.should == 0.1r
+        Time.new("2021-12-25 00:00:00.123456789876 +09:00", precision: obj).subsec.should == 0.123r
+        Time.new("2021-12-25 00:00:00.123456789876 +09:00", precision: 3r).subsec.should == 0.123r
+      end
+
+      it "raise TypeError is can't convert precision keyword argument into Integer" do
+        -> {
+          Time.new("2021-12-25 00:00:00.123456789876 +09:00", precision: "")
+        }.should raise_error(TypeError, "no implicit conversion from string")
+      end
+
+      it "raises ArgumentError if part of time string is missing" do
+        -> {
+          Time.new("2020-12-25 00:56 +09:00")
+        }.should raise_error(ArgumentError, "missing sec part: 00:56 ")
+
+        -> {
+          Time.new("2020-12-25 00 +09:00")
+        }.should raise_error(ArgumentError, "missing min part: 00 ")
+      end
+
+      it "raises ArgumentError if subsecond is missing after dot" do
+        -> {
+          Time.new("2020-12-25 00:56:17. +0900")
+        }.should raise_error(ArgumentError, "subsecond expected after dot: 00:56:17. ")
+      end
+
+      it "raises ArgumentError if String argument is not in the supported format" do
+        -> {
+          Time.new("021-12-25 00:00:00.123456 +09:00")
+        }.should raise_error(ArgumentError, "year must be 4 or more digits: 021")
+
+        -> {
+          Time.new("2020-012-25 00:56:17 +0900")
+        }.should raise_error(ArgumentError, "two digits mon is expected after `-': -012-25 00:")
+
+        -> {
+          Time.new("2020-2-25 00:56:17 +0900")
+        }.should raise_error(ArgumentError, "two digits mon is expected after `-': -2-25 00:56")
+
+        -> {
+          Time.new("2020-12-215 00:56:17 +0900")
+        }.should raise_error(ArgumentError, "two digits mday is expected after `-': -215 00:56:")
+
+        -> {
+          Time.new("2020-12-25 000:56:17 +0900")
+        }.should raise_error(ArgumentError, "two digits hour is expected:  000:56:17 ")
+
+        -> {
+          Time.new("2020-12-25 0:56:17 +0900")
+        }.should raise_error(ArgumentError, "two digits hour is expected:  0:56:17 +0")
+
+        -> {
+          Time.new("2020-12-25 00:516:17 +0900")
+        }.should raise_error(ArgumentError, "two digits min is expected after `:': :516:17 +09")
+
+        -> {
+          Time.new("2020-12-25 00:6:17 +0900")
+        }.should raise_error(ArgumentError, "two digits min is expected after `:': :6:17 +0900")
+
+        -> {
+          Time.new("2020-12-25 00:56:137 +0900")
+        }.should raise_error(ArgumentError, "two digits sec is expected after `:': :137 +0900")
+
+        -> {
+          Time.new("2020-12-25 00:56:7 +0900")
+        }.should raise_error(ArgumentError, "two digits sec is expected after `:': :7 +0900")
+
+        -> {
+          Time.new("2020-12-25 00:56. +0900")
+        }.should raise_error(ArgumentError, "fraction min is not supported: 00:56.")
+
+        -> {
+          Time.new("2020-12-25 00. +0900")
+        }.should raise_error(ArgumentError, "fraction hour is not supported: 00.")
+      end
+
+      it "raises ArgumentError if date/time parts values are not valid" do
+        -> {
+          Time.new("2020-13-25 00:56:17 +09:00")
+        }.should raise_error(ArgumentError, "mon out of range")
+
+        -> {
+          Time.new("2020-12-32 00:56:17 +09:00")
+        }.should raise_error(ArgumentError, "mday out of range")
+
+        -> {
+          Time.new("2020-12-25 25:56:17 +09:00")
+        }.should raise_error(ArgumentError, "hour out of range")
+
+        -> {
+          Time.new("2020-12-25 00:61:17 +09:00")
+        }.should raise_error(ArgumentError, "min out of range")
+
+        -> {
+          Time.new("2020-12-25 00:56:61 +09:00")
+        }.should raise_error(ArgumentError, "sec out of range")
+
+        -> {
+          Time.new("2020-12-25 00:56:17 +23:59:60")
+        }.should raise_error(ArgumentError, "utc_offset out of range")
+
+        -> {
+          Time.new("2020-12-25 00:56:17 +24:00")
+        }.should raise_error(ArgumentError, "utc_offset out of range")
+
+        -> {
+          Time.new("2020-12-25 00:56:17 +23:61")
+        }.should raise_error(ArgumentError, '"+HH:MM", "-HH:MM", "UTC" or "A".."I","K".."Z" expected for utc_offset: +23:61')
+      end
+
+      it "raises ArgumentError if string has not ascii-compatible encoding" do
+        -> {
+          Time.new("2021-11-31 00:00:60 +09:00".encode("utf-32le"))
+        }.should raise_error(ArgumentError, "time string should have ASCII compatible encoding")
+      end
+    end
+  end
 end