From b66b54701e21f7c48258a7798df936209f3cabcb Mon Sep 17 00:00:00 2001
From: Daniel <cpu@letsencrypt.org>
Date: Sat, 26 Nov 2016 17:49:34 -0500
Subject: [PATCH] Adds unit test for LoadCert

---
 cmd.cover.out     | 14 +++++++-------
 cmd/shell_test.go | 30 ++++++++++++++++++++++++++++++
 2 files changed, 37 insertions(+), 7 deletions(-)

diff --git a/cmd.cover.out b/cmd.cover.out
index cc1ad9659..f50844247 100644
--- a/cmd.cover.out
+++ b/cmd.cover.out
@@ -49,13 +49,13 @@ github.com/letsencrypt/boulder/cmd/shell.go:147.4,147.46 1 0
 github.com/letsencrypt/boulder/cmd/shell.go:150.4,153.46 4 0
 github.com/letsencrypt/boulder/cmd/shell.go:144.31,146.5 1 0
 github.com/letsencrypt/boulder/cmd/shell.go:147.46,149.5 1 0
-github.com/letsencrypt/boulder/cmd/shell.go:168.53,169.16 1 0
-github.com/letsencrypt/boulder/cmd/shell.go:173.2,174.16 2 0
-github.com/letsencrypt/boulder/cmd/shell.go:178.2,179.49 2 0
-github.com/letsencrypt/boulder/cmd/shell.go:184.2,185.8 2 0
-github.com/letsencrypt/boulder/cmd/shell.go:169.16,172.3 2 0
-github.com/letsencrypt/boulder/cmd/shell.go:174.16,176.3 1 0
-github.com/letsencrypt/boulder/cmd/shell.go:179.49,182.3 2 0
+github.com/letsencrypt/boulder/cmd/shell.go:168.53,169.16 1 4
+github.com/letsencrypt/boulder/cmd/shell.go:173.2,174.16 2 3
+github.com/letsencrypt/boulder/cmd/shell.go:178.2,179.49 2 2
+github.com/letsencrypt/boulder/cmd/shell.go:184.2,185.8 2 1
+github.com/letsencrypt/boulder/cmd/shell.go:169.16,172.3 2 1
+github.com/letsencrypt/boulder/cmd/shell.go:174.16,176.3 1 1
+github.com/letsencrypt/boulder/cmd/shell.go:179.49,182.3 2 1
 github.com/letsencrypt/boulder/cmd/shell.go:193.31,196.16 3 0
 github.com/letsencrypt/boulder/cmd/shell.go:199.2,200.16 2 0
 github.com/letsencrypt/boulder/cmd/shell.go:203.2,205.16 3 0
diff --git a/cmd/shell_test.go b/cmd/shell_test.go
index 04b7ce249..a674ff740 100644
--- a/cmd/shell_test.go
+++ b/cmd/shell_test.go
@@ -130,3 +130,33 @@ func TestVersionString(t *testing.T) {
 	expected := fmt.Sprintf("Versions: test=(TestBuildID RightNow!) Golang=(%s) BuildHost=(Localhost)", runtime.Version())
 	test.AssertEquals(t, versionStr, expected)
 }
+
+func TestLoadCert(t *testing.T) {
+	testCases := []struct {
+		path        string
+		expectedErr string
+	}{
+		{
+			"",
+			"Issuer certificate was not provided in config.",
+		},
+		{
+			"../does/not/exist",
+			"open ../does/not/exist: no such file or directory",
+		},
+		{
+			"../test/test-ca.key",
+			"Invalid certificate value returned",
+		},
+	}
+
+	for _, tc := range testCases {
+		_, err := LoadCert(tc.path)
+		test.AssertError(t, err, fmt.Sprintf("LoadCert(%q) did not error", tc.path))
+		test.AssertEquals(t, err.Error(), tc.expectedErr)
+	}
+
+	bytes, err := LoadCert("../test/test-ca.pem")
+	test.AssertNotError(t, err, "LoadCert(../test/test-ca.pem) errored")
+	test.AssertNotEquals(t, len(bytes), 0)
+}