fs: Save metadata for objects in minioMetaBucket directory. (#2251)

fs-v1-metadata_test.go

@@ -0,0 +1,63 @@
+/*
+ * Minio Cloud Storage, (C) 2016 Minio, Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package main
+
+import "testing"
+
+// Tests scenarios which can occur for hasExtendedHeader function.
+func TestHasExtendedHeader(t *testing.T) {
+	// All test cases concerning hasExtendedHeader function.
+	testCases := []struct {
+		metadata map[string]string
+		has      bool
+	}{
+		// Verifies if X-Amz-Meta is present.
+		{
+			metadata: map[string]string{
+				"X-Amz-Meta-1": "value",
+			},
+			has: true,
+		},
+		// Verifies if X-Minio-Meta is present.
+		{
+			metadata: map[string]string{
+				"X-Minio-Meta-1": "value",
+			},
+			has: true,
+		},
+		// Verifies if extended header is not present.
+		{
+			metadata: map[string]string{
+				"md5Sum": "value",
+			},
+			has: false,
+		},
+		// Verifieis if extended header is not present, but with an empty input.
+		{
+			metadata: nil,
+			has:      false,
+		},
+	}
+
+	// Validate all test cases.
+	for i, testCase := range testCases {
+		has := hasExtendedHeader(testCase.metadata)
+		if has != testCase.has {
+			t.Fatalf("Test case %d: Expected \"%#v\", but got \"%#v\"", i+1, testCase.has, has)
+		}
+	}
+}