1 files changed, 74 insertions, 0 deletions
diff --git a/internal/timezone/timezone_test.go b/internal/timezone/timezone_test.go
new file mode 100644
index 00000000..dc80c22f
--- /dev/null
+++ b/internal/timezone/timezone_test.go
@@ -0,0 +1,74 @@
+// SPDX-FileCopyrightText: Copyright The Miniflux Authors. All rights reserved.
+// SPDX-License-Identifier: Apache-2.0
+
+package timezone // import "miniflux.app/v2/internal/timezone"
+
+import (
+	"testing"
+	"time"
+)
+
+func TestNow(t *testing.T) {
+	tz := "Europe/Paris"
+	now := Now(tz)
+
+	if now.Location().String() != tz {
+		t.Fatalf(`Unexpected timezone, got %q instead of %q`, now.Location(), tz)
+	}
+}
+
+func TestNowWithInvalidTimezone(t *testing.T) {
+	tz := "Invalid Timezone"
+	expected := time.Local
+	now := Now(tz)
+
+	if now.Location().String() != expected.String() {
+		t.Fatalf(`Unexpected timezone, got %q instead of %q`, now.Location(), expected)
+	}
+}
+
+func TestConvertTimeWithNoTimezoneInformation(t *testing.T) {
+	tz := "Canada/Pacific"
+	input := time.Date(2018, 3, 1, 14, 2, 3, 0, time.FixedZone("", 0))
+	output := Convert(tz, input)
+
+	if output.Location().String() != tz {
+		t.Fatalf(`Unexpected timezone, got %q instead of %s`, output.Location(), tz)
+	}
+
+	hours, minutes, secs := output.Clock()
+	if hours != 14 || minutes != 2 || secs != 3 {
+		t.Fatalf(`Unexpected time, got hours=%d, minutes=%d, secs=%d`, hours, minutes, secs)
+	}
+}
+
+func TestConvertTimeWithDifferentTimezone(t *testing.T) {
+	tz := "Canada/Central"
+	input := time.Date(2018, 3, 1, 14, 2, 3, 0, time.UTC)
+	output := Convert(tz, input)
+
+	if output.Location().String() != tz {
+		t.Fatalf(`Unexpected timezone, got %q instead of %s`, output.Location(), tz)
+	}
+
+	hours, minutes, secs := output.Clock()
+	if hours != 8 || minutes != 2 || secs != 3 {
+		t.Fatalf(`Unexpected time, got hours=%d, minutes=%d, secs=%d`, hours, minutes, secs)
+	}
+}
+
+func TestConvertTimeWithIdenticalTimezone(t *testing.T) {
+	tz := "Canada/Central"
+	loc, _ := time.LoadLocation(tz)
+	input := time.Date(2018, 3, 1, 14, 2, 3, 0, loc)
+	output := Convert(tz, input)
+
+	if output.Location().String() != tz {
+		t.Fatalf(`Unexpected timezone, got %q instead of %s`, output.Location(), tz)
+	}
+
+	hours, minutes, secs := output.Clock()
+	if hours != 14 || minutes != 2 || secs != 3 {
+		t.Fatalf(`Unexpected time, got hours=%d, minutes=%d, secs=%d`, hours, minutes, secs)
+	}
+}