From fb8aee6c5147b8751a3920f613934d90b79ef4c5 Mon Sep 17 00:00:00 2001
From: flu0r1ne <flu0r1ne@flu0r1ne.net>
Date: Wed, 21 Jul 2021 23:00:00 -0500
Subject: Added parser for +- syntax for relative references to snapshots

---
 snap/parsing_test.go | 31 +++++++++++++++++++++++++++++++
 1 file changed, 31 insertions(+)
 create mode 100644 snap/parsing_test.go

(limited to 'snap/parsing_test.go')

diff --git a/snap/parsing_test.go b/snap/parsing_test.go
new file mode 100644
index 0000000..1a87723
--- /dev/null
+++ b/snap/parsing_test.go
@@ -0,0 +1,31 @@
+package snap
+
+import "testing"
+
+func TestRelativeParsing(t * testing.T) {
+	cases := []struct {
+		snapish string
+		snapshot string
+		offset int
+	} {
+		{"snapshot", "snapshot", 0},
+		{"testing--", "testing", -2},
+		{"%SNAPSHOT%^+++", "%SNAPSHOT%^", 3},
+		{"--prefixed", "--prefixed", 0},
+		{"+++", "", 3},
+		{"---", "", -3},
+		{"+5", "", 5},
+		{"-3", "", -3},
+		{"+", "", 1},
+		{"-", "", -1},
+		{`"-"`, "-", 0},
+	}
+
+	for _, c := range cases {
+		got := ToRelative(c.snapish)
+
+		if got.offset != c.offset || got.snapshot != c.snapshot {
+			t.Errorf("ToRelative(%s) == %+v, wanted %+v", c.snapish, got, c)
+		}
+	}
+}
\ No newline at end of file
-- 
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