Add Finding and its associated types.

report/builder.go

@@ -0,0 +1,12 @@
+package report
+
+// Builder is a utility for constructing test reprots.
+type Builder struct {
+	Log func(string)
+}
+
+func (b *Builder) AddFinding(f Finding) {
+}
+
+func (b *Builder) Finalize() {
+}

report/finding.go

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+package report
+
+// A Finding is a piece of information discovered by observing the engine
+// throughout the lifetime of a test.
+type Finding struct {
+	// Caption is a brief sentence describing the finding.
+	//
+	// It must not be empty.
+	//
+	// If the Finding is a result of an Expectation the caption should be
+	// phrased in terms of the expectation and not the cause of the
+	// expectation's passing or failing.
+	//
+	// For example, use "the expected DepositSubmitted event was not recorded"
+	// in preference to "no handlers produce DepositSubmitted events".
+	Caption string
+
+	// Summary is a brief paragraph describing the finding.
+	//
+	// It may be empty.
+	//
+	// If the Finding is a result of a failed Expectation the summary should
+	// give the best explanation as to why the failure occurred.
+	//
+	// For example, use "the handler that records this event has been disabled"
+	// in preference to "the expected event was not recorded".
+	Summary string
+
+	// Polarity indicates how the finding influenced test result, if at all.
+	Polarity FindingPolarity
+
+	// Evidence contains other findings that led to this finding.
+	Evidence []Finding
+}
+
+// FindingPolarity is an numerations of the "polarity" of a finding, which
+// describes the effect of the finding on the result of a test.
+type FindingPolarity int
+
+const (
+	// Negative indicates that the finding caused the test to fail. Typically
+	// this would take precedence over any Positive finding.
+	Negative FindingPolarity = -1
+
+	// Neutral indicates the the finding did not effect the test result.
+	Neutral FindingPolarity = -0
+
+	// Positive indicates that the finding caused the test to pass, assuming no
+	// Negative findings were discovered.
+	Positive FindingPolarity = +1
+)