chore: add go tool tip to makefile (#803)

* add go tool tip to makefile

* add cover-html command to makefile

* add changelog of make cover-html

(cherry picked from commit 76102b7)

Author: RafilxTenfen

CHANGELOG.md

@@ -52,6 +52,7 @@ Ref: https://keepachangelog.com/en/1.0.0/
 - [782](https://github.com/umee-network/umee/pull/782) Add unit test to `x/oracle/types/denom.go` and `x/oracle/types/keys.go`.
 - [786](https://github.com/umee-network/umee/pull/786) Add unit test to `x/oracle/...`.
 - [798](https://github.com/umee-network/umee/pull/798) Increase `x/oracle` unit test coverage.
+- [803](https://github.com/umee-network/umee/pull/803) Add `cover-html` command to makefile.
 
 ## [v2.0.0](https://github.com/umee-network/umee/releases/tag/v2.0.0) - 2022-04-06
 

Makefile

@@ -118,10 +118,11 @@ PACKAGES_UNIT=$(shell go list ./... | grep -v -e '/tests/e2e' -e '/tests/simulat
 PACKAGES_E2E=$(shell go list ./... | grep '/e2e')
 TEST_PACKAGES=./...
 TEST_TARGETS := test-unit test-unit-cover test-race test-e2e
+TEST_COVERAGE_PROFILE=coverage.txt
 
 test-unit: ARGS=-timeout=10m -tags='norace'
 test-unit: TEST_PACKAGES=$(PACKAGES_UNIT)
-test-unit-cover: ARGS=-timeout=10m -tags='norace' -coverprofile=coverage.txt -covermode=atomic
+test-unit-cover: ARGS=-timeout=10m -tags='norace' -coverprofile=$(TEST_COVERAGE_PROFILE) -covermode=atomic
 test-unit-cover: TEST_PACKAGES=$(PACKAGES_UNIT)
 test-race: ARGS=-timeout=10m -race
 test-race: TEST_PACKAGES=$(PACKAGES_UNIT)
@@ -144,6 +145,11 @@ lint:
 	@echo "--> Running linter"
 	@go run github.com/golangci/golangci-lint/cmd/golangci-lint run --timeout=10m
 
+cover-html: test-unit-cover
+	@echo "--> Opening in the browser"
+	@go tool cover -html=$(TEST_COVERAGE_PROFILE)
+
+
 .PHONY: lint
 
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