Add test cases.

Close #37, as all tests are passing on the latest version.

Author: fnando

test/recurrence/issue_37_test.rb

@@ -0,0 +1,139 @@
+# frozen_string_literal: true
+
+require "test_helper"
+
+class Issue37Test < Minitest::Test
+  def recurrence
+    Recurrence.new(
+      every: :week,
+      on: %i[monday tuesday wednesday thursday],
+      starts: "2021-10-01",
+      until: "2021-10-10"
+    )
+  end
+
+  test "events without start_date, end_date" do
+    r = recurrence
+
+    assert_equal \
+      [
+        Date.new(2021, 10, 4),
+        Date.new(2021, 10, 5),
+        Date.new(2021, 10, 6),
+        Date.new(2021, 10, 7)
+      ],
+      r.events
+
+    assert_equal \
+      [
+        Date.new(2021, 10, 4),
+        Date.new(2021, 10, 5),
+        Date.new(2021, 10, 6),
+        Date.new(2021, 10, 7)
+      ],
+      r.events
+  end
+
+  test "events with start_date, end_date within actual end_date" do
+    r = recurrence
+
+    assert_equal \
+      [Date.new(2021, 10, 4), Date.new(2021, 10, 5), Date.new(2021, 10, 6)],
+      r.events(
+        starts: "2021-10-04",
+        until: "2021-10-06"
+      )
+    assert_equal r.events(
+      starts: "2021-10-04",
+      until: "2021-10-06"
+    ), [Date.new(2021, 10, 4), Date.new(2021, 10, 5), Date.new(2021, 10, 6)]
+  end
+
+  test "events with start_date, end_date as actual end_date" do
+    r = recurrence
+
+    assert_equal \
+      [
+        Date.new(2021, 10, 4),
+        Date.new(2021, 10, 5),
+        Date.new(2021, 10, 6),
+        Date.new(2021, 10, 7)
+      ],
+      r.events(starts: "2021-10-04", until: "2021-10-10")
+
+    assert_equal \
+      [
+        Date.new(2021, 10, 4),
+        Date.new(2021, 10, 5),
+        Date.new(2021, 10, 6),
+        Date.new(2021, 10, 7)
+      ],
+      r.events(starts: "2021-10-04", until: "2021-10-10")
+  end
+
+  test "events with start_date, end_date as actual end_date (using events!)" do
+    r = recurrence
+
+    assert_equal \
+      [
+        Date.new(2021, 10, 4),
+        Date.new(2021, 10, 5),
+        Date.new(2021, 10, 6),
+        Date.new(2021, 10, 7)
+      ],
+      r.events!(starts: "2021-10-04", until: "2021-10-10")
+
+    assert_equal \
+      [
+        Date.new(2021, 10, 4),
+        Date.new(2021, 10, 5),
+        Date.new(2021, 10, 6),
+        Date.new(2021, 10, 7)
+      ],
+      r.events!(starts: "2021-10-04", until: "2021-10-10")
+  end
+
+  test "events with start_date, end_date outside end_date" do
+    r = recurrence
+
+    assert_equal \
+      [
+        Date.new(2021, 10, 4),
+        Date.new(2021, 10, 5),
+        Date.new(2021, 10, 6),
+        Date.new(2021, 10, 7)
+      ],
+      r.events(starts: "2021-09-30", until: "2021-10-15")
+
+    assert_equal \
+      [
+        Date.new(2021, 10, 4),
+        Date.new(2021, 10, 5),
+        Date.new(2021, 10, 6),
+        Date.new(2021, 10, 7)
+      ],
+      r.events(starts: "2021-09-30", until: "2021-10-15")
+  end
+
+  test "events with start_date, end_date outside end_date (using events!)" do
+    r = recurrence
+
+    assert_equal \
+      [
+        Date.new(2021, 10, 4),
+        Date.new(2021, 10, 5),
+        Date.new(2021, 10, 6),
+        Date.new(2021, 10, 7)
+      ],
+      r.events!(starts: "2021-09-30", until: "2021-10-15")
+
+    assert_equal \
+      [
+        Date.new(2021, 10, 4),
+        Date.new(2021, 10, 5),
+        Date.new(2021, 10, 6),
+        Date.new(2021, 10, 7)
+      ],
+      r.events!(starts: "2021-09-30", until: "2021-10-15")
+  end
+end