Replace minio-go with aws-sdk-go for s3-compatible log backend (#670)

* Logs should support specifying region when using S3-compatible object store

* Use aws-sdk-go client for s3 backed logstore

* fixes vendor with aws-sdk-go dependencies

vendor/github.com/jmespath/go-jmespath/parser_test.go

@@ -0,0 +1,136 @@
+package jmespath
+
+import (
+	"fmt"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+var parsingErrorTests = []struct {
+	expression string
+	msg        string
+}{
+	{"foo.", "Incopmlete expression"},
+	{"[foo", "Incopmlete expression"},
+	{"]", "Invalid"},
+	{")", "Invalid"},
+	{"}", "Invalid"},
+	{"foo..bar", "Invalid"},
+	{`foo."bar`, "Forwards lexer errors"},
+	{`{foo: bar`, "Incomplete expression"},
+	{`{foo bar}`, "Invalid"},
+	{`[foo bar]`, "Invalid"},
+	{`foo@`, "Invalid"},
+	{`&&&&&&&&&&&&t(`, "Invalid"},
+	{`[*][`, "Invalid"},
+}
+
+func TestParsingErrors(t *testing.T) {
+	assert := assert.New(t)
+	parser := NewParser()
+	for _, tt := range parsingErrorTests {
+		_, err := parser.Parse(tt.expression)
+		assert.NotNil(err, fmt.Sprintf("Expected parsing error: %s, for expression: %s", tt.msg, tt.expression))
+	}
+}
+
+var prettyPrinted = `ASTProjection {
+  children: {
+    ASTField {
+      value: "foo"
+    }
+    ASTSubexpression {
+      children: {
+        ASTSubexpression {
+          children: {
+            ASTField {
+              value: "bar"
+            }
+            ASTField {
+              value: "baz"
+            }
+        }
+        ASTField {
+          value: "qux"
+        }
+    }
+}
+`
+
+var prettyPrintedCompNode = `ASTFilterProjection {
+  children: {
+    ASTField {
+      value: "a"
+    }
+    ASTIdentity {
+    }
+    ASTComparator {
+      value: tLTE
+      children: {
+        ASTField {
+          value: "b"
+        }
+        ASTField {
+          value: "c"
+        }
+    }
+}
+`
+
+func TestPrettyPrintedAST(t *testing.T) {
+	assert := assert.New(t)
+	parser := NewParser()
+	parsed, _ := parser.Parse("foo[*].bar.baz.qux")
+	assert.Equal(parsed.PrettyPrint(0), prettyPrinted)
+}
+
+func TestPrettyPrintedCompNode(t *testing.T) {
+	assert := assert.New(t)
+	parser := NewParser()
+	parsed, _ := parser.Parse("a[?b<=c]")
+	assert.Equal(parsed.PrettyPrint(0), prettyPrintedCompNode)
+}
+
+func BenchmarkParseIdentifier(b *testing.B) {
+	runParseBenchmark(b, exprIdentifier)
+}
+
+func BenchmarkParseSubexpression(b *testing.B) {
+	runParseBenchmark(b, exprSubexpr)
+}
+
+func BenchmarkParseDeeplyNested50(b *testing.B) {
+	runParseBenchmark(b, deeplyNested50)
+}
+
+func BenchmarkParseDeepNested50Pipe(b *testing.B) {
+	runParseBenchmark(b, deeplyNested50Pipe)
+}
+
+func BenchmarkParseDeepNested50Index(b *testing.B) {
+	runParseBenchmark(b, deeplyNested50Index)
+}
+
+func BenchmarkParseQuotedIdentifier(b *testing.B) {
+	runParseBenchmark(b, exprQuotedIdentifier)
+}
+
+func BenchmarkParseQuotedIdentifierEscapes(b *testing.B) {
+	runParseBenchmark(b, quotedIdentifierEscapes)
+}
+
+func BenchmarkParseRawStringLiteral(b *testing.B) {
+	runParseBenchmark(b, rawStringLiteral)
+}
+
+func BenchmarkParseDeepProjection104(b *testing.B) {
+	runParseBenchmark(b, deepProjection104)
+}
+
+func runParseBenchmark(b *testing.B, expression string) {
+	parser := NewParser()
+	for i := 0; i < b.N; i++ {
+		parser.Parse(expression)
+	}
+}