Add package manager tests

Author: kyoshidajp

cmd/diagnose_test.go

@@ -216,12 +216,75 @@ func TestDiagnose_newDiagnoseCmd(t *testing.T) {
 		wantErr       bool
 	}{
 		{
-			name:          "no problems",
+			name:          "bundler with no problems",
 			command:       "--package bundler --file ruby/bundler/testdata/Gemfile.lock",
 			wantOutWriter: "",
 			wantErrWriter: "",
 			wantErr:       false,
 		},
+		{
+			name:          "yarn",
+			command:       "--package yarn --file nodejs/yarn/testdata/yarn.lock",
+			wantOutWriter: "",
+			wantErrWriter: "",
+			wantErr:       false,
+		},
+		{
+			name:          "npm",
+			command:       "--package npm --file nodejs/npm/testdata/package-lock.json",
+			wantOutWriter: "",
+			wantErrWriter: "",
+			wantErr:       false,
+		},
+		{
+			name:          "pip",
+			command:       "--package pip --file python/pip/testdata/requirements.txt",
+			wantOutWriter: "",
+			wantErrWriter: "",
+			wantErr:       false,
+		},
+		{
+			name:          "pipenv",
+			command:       "--package pipenv --file python/pipenv/testdata/Pipfile.lock",
+			wantOutWriter: "",
+			wantErrWriter: "has error",
+			wantErr:       true,
+		},
+		{
+			name:          "golang",
+			command:       "--package golang --file golang/mod/testdata/go.mod",
+			wantOutWriter: "",
+			wantErrWriter: "has error",
+			wantErr:       true,
+		},
+		{
+			name:          "cargo",
+			command:       "--package cargo --file rust/cargo/testdata/cargo.lock",
+			wantOutWriter: "",
+			wantErrWriter: "has error",
+			wantErr:       true,
+		},
+		{
+			name:          "cocoapods",
+			command:       "--package cocoapods --file swift/cocoapods/testdata/Podfile.lock",
+			wantOutWriter: "",
+			wantErrWriter: "has error",
+			wantErr:       true,
+		},
+		{
+			name:          "pub",
+			command:       "--package pub --file dart/pub/testdata/podspec.lock",
+			wantOutWriter: "",
+			wantErrWriter: "has error",
+			wantErr:       true,
+		},
+		{
+			name:          "mix",
+			command:       "--package mix --file erlang_elixir/hex/testdata/mix.lock",
+			wantOutWriter: "",
+			wantErrWriter: "",
+			wantErr:       false,
+		},
 		{
 			name:          "has error",
 			command:       "--package bundler --file ruby/bundler/testdata/Gemfile_error.lock",