From 8e99baedf2c3e433750c2f51681f3c9d15d412be Mon Sep 17 00:00:00 2001
From: Pacien TRAN-GIRARD
Date: Sat, 14 Feb 2015 11:24:17 +0100
Subject: First version

---
 overwriting_test.go | 67 +++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 67 insertions(+)
 create mode 100644 overwriting_test.go

(limited to 'overwriting_test.go')

diff --git a/overwriting_test.go b/overwriting_test.go
new file mode 100644
index 0000000..1ed5daa
--- /dev/null
+++ b/overwriting_test.go
@@ -0,0 +1,67 @@
+package envcfg
+
+import (
+	"os"
+	"testing"
+)
+
+func TestKeeping(t *testing.T) {
+	const ORIG_VAL = "Remember: testing is the future!"
+
+	os.Clearenv()
+
+	s := struct{ Field string }{ORIG_VAL}
+
+	ReadInto(&s)
+
+	if s.Field != ORIG_VAL {
+		t.Errorf("expected '%s', got '%s'", ORIG_VAL, s.Field)
+	}
+}
+
+func TestOverwriting(t *testing.T) {
+	const ENV_KEY = "FIELD"
+	const ENV_VAL = "Remember: testing is the future!"
+	const ORIG_VAL = "Testing is pointless!"
+
+	os.Clearenv()
+	os.Setenv(ENV_KEY, ENV_VAL)
+
+	s := struct{ Field string }{ORIG_VAL}
+
+	ReadInto(&s)
+
+	if s.Field != ENV_VAL {
+		t.Errorf("expected '%s', got '%s'", ENV_VAL, s.Field)
+	}
+}
+
+type superStruct struct {
+	SubStruct nestedFields
+}
+
+type nestedFields struct {
+	KeepMe      string
+	OverwriteMe string
+}
+
+func TestMultiOverwriting(t *testing.T) {
+	const ENV_KEY = "SUBSTRUCT_OVERWRITEME"
+	const ENV_VAL = "Remember: testing is the future!"
+	const ORIG_VAL = "Testing is pointless!"
+
+	os.Clearenv()
+	os.Setenv(ENV_KEY, ENV_VAL)
+
+	s := superStruct{nestedFields{ORIG_VAL, ORIG_VAL}}
+
+	ReadInto(&s)
+
+	if s.SubStruct.KeepMe != ORIG_VAL {
+		t.Errorf("expected '%s', got '%s'", ORIG_VAL, s.SubStruct.KeepMe)
+	}
+
+	if s.SubStruct.OverwriteMe != ENV_VAL {
+		t.Errorf("expected '%s', got '%s'", ENV_VAL, s.SubStruct.OverwriteMe)
+	}
+}
-- 
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